Home / DIYs / How to Fix Dipped Headlight Error on an Audi


Audi Dipped Headlight Warning
I’ve read about this issue happening to others, and it finally happened to me too – the dreaded “Dipped Headlight” error. After reading all of my favorite Audi forums, I found a host of information, some of it helpful, some of it conflicting, and some if it misguided. But piecing together the consistent recommendations as well as a little educated guessing and fact checking, I’ve figured out a good approach for anyone who gets this problem in their 2002-2008 Audi A4, S4 or RS4 and wants to try to fix it themselves. The steps listed here will probably also work for other Audis as well, although may differ somewhat.

What does “Dipped Headlight” even mean?

Simply put, “Dipped Headlight” is Audi-speak for “there is something wrong with your low beam headlight” and can mean a number of things. This is part of why it is so difficult to troubleshoot and fix on your own, as the error doesn’t give you much information about what the problem is. If you have a VAG-COM cable, or know someone who does, the cable can read your car’s computer and tell you the exact error code which will help tremendously. For some people this error message only comes on intermittently, such as when they’re driving slow, when the car first starts up, or in cold weather – for others, it comes on every time.

What to Check First

There are several things that most commonly cause this error after reading dozens of owners messages on Audizine, Fourtitude, Audiforums and other message boards. I’ve listed them below in the order of how’d I’d recommend checking and testing the problem. The simplest thing to do is to replace the headlight bulbs, followed by your headlight sensor in your front wheel well if you have adaptive/auto-leveling xenon headlights. The bulbs are cheap to replace so it’s a good place to start, and if you have symptoms of a bad sensor you can check the connection and make sure it was bent out of place and fix those problems pretty quickly. The other cheap/easy thing to try at first is recalibrating the headlights using VAG-com, which requires access to a VAG-com cable but is otherwise pretty easy to do. Using a VAG-com cable will also help you pull the exact error code which should also help you narrow it down to an issue with the bulbs, ballasts, sensors or headlight alignment problems. Issues with the ballasts or internal motor of the headlight are much trickier, and sadly you’ll probably need/want to replace the entire headlight assembly. Sorry to be the bearer of bad news, but with any luck you can pickup a new headlight and replace it at far less the cost of having the dealer or an independent shop fix it for you…

Headlight Bulbs

Typically the best place to start is new headlight bulbs, as they are often the culprit and one of the cheapest and easiest things to fix – even if new headlight bulbs don’t fix the problem, you’ll eventually need to replace them anyway, so consider it preventative maintenance. If you get the “headlight bulb out” message, see your headlights “flicker” on/off occasionally, or notice that your dipped headlight error only comes on in cold weather or at first start up, it’s likely your headlight bulbs may be on their way out.

Follow this DIY for tips on picking the right bulbs and how to install them: http://nickscarblog.com/diy/replacement-d1s-headlight-bulbs-for-b7-audi-a4s4rs4









Headlight Ballasts

The ballasts are also known to occasionally fail, which can cause this issue. Rumor has it some ballasts have been recalled by Audi, in which case you can check with your dealer to see if your car qualifies for the recall, in which case the service and replacement should be free – problem solved!

However, if you’re not covered by recall and your ballasts are indeed bad, this is a huge undertaking. To replace the ballasts you have to remove the headlights (and bumper) from the car, as the ballasts are mounted on the underside of the headlight housing. OEM ballasts cost anywhere from $100-200, at which point you may be better off replacing the entire headlight assembly as you can usually find complete headlights (including ballasts and bulbs) used on eBay for $200-300. This also covers you in case the problem lies elsewhere in the headlight housing, and since you’re going through the trouble of removing your headlights this is probably worth the extra $100 over the cost of a ballast to not have to remove all of these parts more than once. Make sure you have the right part number prior to ordering – the part number can be found on a white sticker on top of your headlights which you can see simply by opening the hood – compare this to the eBay listing to confirm you’re swapping “apples to apples” with the replacement housing:

 Pic  Title  Details
# of Bids: 0
Ending: 26 days 8 hrs 34 mins
# of Bids: 0
Ending: 3 days 14 hrs 32 mins
Audi a4 (05-09) Headlight Assembly (Bi-Xenon) Left OEM Current Price: $579.99
# of Bids: 0
Ending: 4 days 15 hrs 25 mins
Audi A4 Quattro RS4 Passenger Right Headlight Assembly OEM 8E0 941 030 BD Current Price: $553.55
# of Bids: 0
Ending: 25 days 2 hrs 55 mins
RIGHT Headlight Mount Bracket Retaining Plate OEM - Audi A4 B6 Convertible! Current Price: $39.51
# of Bids: 0
Ending: 15 days 13 hrs 45 mins
 View all items... (Powered by: WP eBay Ads)  

To swap out the headlight housings, follow this DIY: http://www.audizine.com/forum/showthread.php/234131-B7-A4-S4-Clear-Corner-Mod-Removal-of-Bumper

Auto Leveling Sensor

If you recently lowered your car, or hit a really hard bump to your drivers side front or rear wheel, this could be the problem. For cars equipped with auto-levelling sensors, the sensors themselves are located in the wheel wheels near the lower control arms so they can adjust the headlight aiming based on the suspension load. For some people when they lower their car, the sensor is out of range as the suspension has been altered. For others, a hard bump to the front wheel could potentially break the sensor or cause it to become unplugged. To access the sensor, take off your drivers side front wheel and look near the bottom of the suspension. The sensor bridges the lower control arm to the body and looks like this:

Front Headlight Sensor Audi A4

If it is damaged or the wires have frayed, you can order a new one here: http://www.ecstuning.com/Audi-B6_S4–V8/Lighting/Headlights/Leveling/ES440960/. If you are lowered, you may just need to bend the upper part of the bracket so the top of the sensor is higher again. Once you have inspected and either repaired or replaced the sensor, you will need to recalibrate it using vag-com. Follow this DIY for instructions on how to do that: http://www.a4mods.com/index.php?page=webcontent/pages/autolevel.html&category=6

Headlight Swivel Module

B7 Audi Headlight Close-Up

This is the issue I had after replacing the bulbs and ruling out that issue. It turns out that while I was replacing my DRL bulbs, I must have knocked the main headlight swivel out of place, preventing the headlights from being able to aim correctly. Looking closely at the headlight I could see the projector lens on my driver side was pushed forward and not aligned the same way my passenger side was, so I reached inside the headlight housing (much the same way I did when replacing the bulbs) and pulled the projector lens “back” away from the front of the housing until it clicked back into place. I then recalibrated the headlight adjustment using the DIY on A4mods and cleared the codes and the problem went away:  http://www.a4mods.com/index.php?page=webcontent/pages/autolevel.html&category=6

If you run the vag-com on your Xenons and find error code 02769 or 02770, it is likely your projector lenses are out of alignment and you may be able to manually push or pull them back into place. It is also possible the motor inside the headlight has malfunctioned or stopped working altogether, in which case you’ll need to buy an entire new headlight housing – like mentioned earlier, eBay is your best bet for that, and expect to pay about $200-300. But hopefully you may just be like me and have to massage the projector lens back into place and reset the headlight adjustment via VAG-com and the problem will go away :)

VAG-com adjustments (reset to factory spec)

If you change anything other than the bulb, you may also need to recalibrate your headlights and reset the adjustments to factory. To do this, follow the A4mods.com DIY mentioned earlier. For me, I fixed the projector lens being knocked out of place then recalibrated the headlight adjustments using VAG-com to fix my errors.

The last resort is to pull Fuse #10 if you have adaptive or auto-leveling headlights – this disables the feature entirely, which should also disable the warning light. This isn’t the best way to fix it as your headlights might be out of alignment still, and you lose the adaptive features, but hey – at least it gets rid of that pesky warning light and beeping :)

Still stumped? Leave a comment, I’ll do my best to help…



About the author: Nick Roshon


Nick Roshon is a blogger who is passionate about Audis and European cars in general. He owns a 2006 S4 and before that had a 2006 A4. His driving experience includes numerous track days throughout California, Nevada and Arizona. In his day job, Nick is a digital marketer and lives in San Diego, CA, USA.


Recent posts in DIYs



  1. As a fellow B7 owner, love these car specific articles. Have you or do you plan to ever write about the dreaded CVT (what to do or warranty info) or replacing the trunk latch (seems like many other have this issue)? As you noted, the forums are a great place to find info. Thanks

  2. My A4 that I owned before the S4 was a CVT – not sure what all you can do other than trade it in before it blows up. That’s what I ended up doing anyway…that being said, my CVT didn’t have any problems over the 3 years and 10+ track days I enjoyed with the car…

    Trunk latch I haven’t ran into yet – a lot of my DIYs on this blog are from when the issue goes wrong on my car and I have to fix it myself. I’ve heard of the glove box breaking before. If my trunk breaks I’ll be sure to let you know :)

  3. Hey nick congrats on your blog. Big fan here. Just a quick question here. I have 2010 Audi a4 and just did service for 45k. That’s was the last one from audi care program. Is audi care plus worth it? If you heard of it and know anything about it?? Thanks

  4. Zak – it can definitely be worth it, it kind of depends on how much they’re asking for it and how long you plan on keeping the car. I’ve written about the CPO program which is much like the Audi Plus program, so check out my thoughts there: http://nickscarblog.com/cars/audi-cpo-warranty-is-not-transferable-not-worth-it

  5. Hey Nick, great information and covers all bases. I found aftermarket replacement headlight units for $456/pair with LEDs too for a 2006 A4 Quattro 2.0T. Would entirely new headlamps fix most issues? And can someone easily install at home?

  6. Should fix the problem yes, “easy to install at home” is debatable and depends on your definition of easy. It’s not technically difficult, but fairly intensive as you have to remove the bumper before you can remove the headlights. Instructions would be the same as done in the clear corner mod here: http://nickscarblog.com/diy/b7-audi-clear-corner-mod

  7. I was seeing if Like Miller wanted to share where he found the pair for $456???

  8. Sounds like they were aftermarket ones, you can find those just about anywhere but eBay tends to have the most selection…

  9. Hi nick.
    Really enjoy your blogs and the detailed, clear instructions.
    I have an issue with my xenons on my 06 3.0TDI – which, if you click the link to my thread on audizine you will see I have other issues too unfortunately.
    Nonetheless, will replacing the ballasts solve an intermittent headlight failure or do you recommend aftermarket headlights?

    Check my ride out along with my super rare RS2 which you’ll love.



  10. I’d try the ballasts first, that should help. I really have never been a fan of aftermarket headlights, the OEM is truly of a superior quality even though they are more prone to dipped headlight problems. Can you email me some pics of your RS2? Would love to feature it on my blog as a future/upcoming Featured Ride! My email is cars@nickroshon.com

  11. Nick
    I definitely will send you pics of the RS2 tomorrow. That would be awesome!
    I’m a bit unclear- I figured the ballasts to be the housing that comes with the bulb. Am I incorrect? Then there are other threads referring to the xenon controllers. I swopped out the right side bulb with an osram and it hasn’t gone out yet. Left one still does it badly

  12. The ballast is separate from the bulb – it is located on the underside of the headlight housing and is rectangular in shape, about the size of a piece of toast.

  13. Hi Nick,

    Could you please help me with the steps in removing a driver side headlight assembly on a 2006 A6? how many bolts hold in the assembly? Does the entire front bumper have to come off to get the HL assembly out? Someone had posted instructions on how they were able to actually able to fix the AFS motor.



  14. Hi Jay – not sure on the A6 platform, never worked on one before. Would be interested to read the instructions to fix the AFS motor though, can you tell me where those are?

  15. Hey Nick,

    Love your blog! So helpful and a great read.

    I have a 2007 A4 with adaptive HID headlights, and recently noticed a slight flickering on my driver’s side lamp. In addition, when I flip my high beams on, the pax side lamp flips up right away but the driver’s side either takes a while or doesn’t move at all. Sounds a bit like your motor or sensor problem described above, but no warning light yet. Any advice?


  16. You might want to try just replacing the bulbs as a first step, easy (and cheap) thing to rule out and the flickering could just be an indication the bulbs are about to go out…

  17. Hi Nick,

    Got the driver side HL assembly out on my A6/C6. unfortunately I didn’t bookmark the instructions I referred to in my last post. These assemblies have the allen head fittings so you can manually adjust the AFS and curve function. So far, I cant see where the motor is that controls the curve function. The good news is that I don’t have any broken gears or track parts in either the AFS or curve systems.

  18. Hello I have a 2009 audi a4 and need to replace the drivers side light (entire mechanism including the lense ) as well as the pass side bulb and led strip. Any ideas as to how I can do this? Audi is asking for almost 4k to fix this and I cannot afford that. I’m thinking I can purchase the parts and have someone else install?
    Thanks so much.

  19. You can pickup a new housing with bulbs and ballasts on eBay for MUCH cheaper than that. Labor on installing isn’t bad, should be 1-2 hours tops. All said and done, you should be able to do this for ~$1,000…

  20. Hi,
    I have a 2006 A6(c6) with the same head light error, however the fuse is different on this car. From the legend I did not find any adaptive headlight fuse but just a generic light electronics(1 left 1 right). I tried removing them, lights still on but the message too. Is there any other fuse I should pull?

  21. I’m not familiar with the fuses of an 06 A6, sorry William.

  22. Ive got an Audi A5 2010, ive just changed the head light but the adaptive warning light is still flashing, can i buy a vag com reader or do i have to download the software?

  23. If you buy a vag com cable the software is free.

  24. There definitely is some confusion on this around many of the forums and you seem to be the one who could clear it up. Does an A3/A4 with the self leveling Xenons also have the curve swiveling/sensor feature? It seems perfectly reasonable but from all my reading there’s no definitive answer. Even better, is it something that can be enabled through a vag com? Personally, I bought my car used so sont know for sure that it doesn’t have the left/right swivel feature. I’ve even read that this kind of thing can go out and not prompt an error message within the car. If you know if this capability and/or mod is possible I know at least one or two others who would benefit as well…thanks in advance!

  25. Hi Robert – great question! At least for the B7 A4/S4 platform, all xenons have auto-leveling, which is the up/down range. Not all xenons have AFS, which is the left/right range that synchronizes with the steering wheel. So they are certainly two different things/features. And yes, the AFS is certainly prone to failure and is something I had to disable on my car accordingly :(

  26. Hi Nick! This is my first time posting on your blog and wanted to add to the discussion about the dipped headlight error. It came up on my warning display last week and having remembered your DIY posting I was prepared to remove my bumper to diagnose as you detailed here. I decided against it and made an appointment with Pure to have it checked out. They called several hours later and pointed out something I had noticed but it didn’t register with me as I had bulbs and ballasts running through my mind: The error only occurred with the headlight selector dial in the “auto” position. When the dial goes to the next headlight mode or the “full on” position, the error message disappears. After they splashed some water on the windshield to test the rain sensor mode for the wipers, they determined that the sensor pack which detects daylight for the headlights and water for the auto wipers was defective. I took it in this morning and they replaced it for $343. Far better than the $500+ the dealer would have charged. Everything is working normally now and when I pulled into my darkened garage a few minutes ago, the headlights fired right up. Just wanted to present your readers with another possible source when this error message appears. Thanks for taking time to provide these DIYs Nick

  27. Interesting, nice find! I’m sure others have this issue, something easy to fix anyway. Thanks for sharing.

  28. Hi nick, i have an 2009 a5. With adaptive lights. I was following an advice from a mechanic to take off the minus cable on the battery. For 10 min so the car could completely reset to factory. But after i had connected it again and started the vehicle, i got a message and yellow light saying adaptive lights defective. They dont work now. But they worked that day. This is not surposed to happen right? And i cannot find the fuse.

  29. Raymond – I would take it to an Audi mechanic or someone with a VAG-com cable and have them clear the warning code and see if that helps. I’d also check with the dealership and see if your lights were recalled, as I know some of the newer Audi models had a recall for this.

  30. Hey Nick – I ordered the Sylvania bulbs you linked to and installed them but they’re pretty yellow – a lot more yellow than the stock bulb on the other side. Do these burn into their true color or ? All bulbs, the one I replaced, the bulb I replaced it with, and the still good bulb are 4300K.

  31. They do change colors both once they’ve been “broken in” as well as once they heat up. 4300k can be slightly different depending on manufacturer, but I wouldn’t think it would make that much of a difference – give it a few uses and see if they don’t even out…

  32. I started my car without the driver side headlight in. I read in a forum that this will cause the headlight range control error. I was working on replacing my thermostat, and did not have the headlight in when I was testing and bleeding my cooling system. Even after disconnecting the battery, the error does not go away. Is the only way to get rid of this error with a VAG COM? Or is there another option? Really don’t want to spend $200 or whatever for a VAG COM just to get rid of an errow when nothing is wrong with the headlight.

  33. I have a 2003 audi a4 that the headlight dipped light is on an the code says it a ground problem also the oil level sensor says the same is there a ground wire for these

  34. Galen Carnicelli

    Hi Nick, Like others my 2007 A6 Quattro 3.2 has the dreaded dipped headlight error light on the dash. Repair shop says it needs a whole new headlamp assy, base cost of $1070 w/o labor. Didn’t check sensors, bulbs or alignment. Typical shop deal. Any way to narrow it down before spending big bucks, and if in fact motor is bad, can you replace the assy with one that doesn’t have self leveling lamps? Thanks,

  35. You can ask them to provide you the specific error code/warning that the car returned and see if it gives you any guidance, but otherwise it is a little bit of guess & check. The bulbs are pretty cheap & easy to try first, so I’d start there. If you do end up needing to replace the headlight all together, check out eBay and/or Craigslist and you can probably find one much, much cheaper. Worst case scenario just pull the fuse for the adaptive fuse and the warning will go away 😉

  36. Nick,
    I have a 2007 Q7 4.2 and the “dipped headlights or rear lights’ warning just came on. Read through your comments above – same recommendations for Q7 and how do I confirm if I have adaptive lights? Thank you

  37. Same recommendations, and you can confirm if you have them or not as when the car starts up the lights should “dance” meaning the beam goes up down, left/right to calibrate. If the beam moves around that is the adaptive function warming up.

  38. Hi Nick, glad to see you are still answering posts on this. My headlights on my A4 3.2L are out of control and I am going to have the dealer look at them next Saturday. My car has xenons already, but I’m having trouble finding replacement headlights that work with xenon models. If it turns out the be the ballast does that mean my only options are to replace them or are there just considerably less xenon compatible after market headlights?

  39. It seems like a lot of people are having issues with this recently, and it’s a total pain of an issue to deal with. Switching to aftermarket headlights doesn’t work well, as those are designed for cars that originally had halogen headlights, so the wiring harnesses are totally different. Your best bet is to buy a new (or used) ballast if you think that is the culprit, or just buy an entire new headlight housing otherwise. Probably not the news you wanted to hear :/

  40. I have the warning light on the LCD screen in my c5 Allroad. Previous owner did a coilover conversion and removed the 2 front leveling sensors. Now I have a warning lamp on the LCD screen. I just checked and fuse 10 has not only been pulled but there is nothing there to plug a fuse into. (Terminals removed). How the hell can I get this light off my dash. please advise. Thanks

  41. It probably isn’t the same fuse on your car as mine since you have an entirely different platform. Look for a fuse diagram and see if any of the fuses are related to the auto leveling or headlight leveling system and you might be able to figure out which fuse it is that way…

  42. There aren’t any other fuses designated to the headlight leveling system. Only other thing I can think of, is to replace the leveling sensor but they’re expensive. I would much rather code it out if possible. VAG-COM says that there is no signal from the front left leveling sensor (I assume this is throwing the warning light for a malfunction in the leveling system) But I just want to get rid of it entirely…Any ideas?

  43. The ballast is the same as used in the Chrysler 300 which is $100 from mo par.


    Just FYI for those with a bad ballast.

  44. Holy shit, good to know!

  45. I have a 2005.5 Audi A4 and my ballasts went bad, as a result lights flickering before totally going out. I replaced the ballasts and after intalling i got a adaptive light warning light. What does this mean?

  46. It’s possible you dislodged something or knocked the adaptive motors out of place causing the light to come on…do the headlights “dance” up and down, left right when you first turn them on (the adaptive feature calibrating).

  47. No they do not any more.

  48. Great blog. It is one of the most common fault on Audi C6 ( last reports feom dekra .de). I think when the lights are 8-10 years old, and frequently fault after fix one part, I have get 3 different fault last year. Is on A6. 3.2 Xeon. Now I decided to buy 2.new complete headlight lamps( would be cheaper in the long term ????. But how can I know the right types, was not any stickers numbers from the lamp I have, and link to lamps on eBay? Amazon? Have never shop there but is better than originally Audi dealer. Thanks for this good tread

  49. If you want brand new ones, going through your Audi dealer is your best bet unfortunately (also most expensive). You can look up the part number on a site like ECSTuning.com or GenuineAudiParts.com as well.

  50. I have a 2006 Audi A4 the left side dipped headlamp a couple years back and I begrudgingly replaced it at the dealer, $350 later it was fixed but now the right side is doing the same thing. My headlights flicker but now both sides flicker where a couple months back it was only the right side, can I replace the Xenon lights myself? I looked into it initially but the Chilton’s manual and Audi Owner’s Manual suggest against it because it can retain a high voltage within the headlight and you could get shocked and possibly injured. Has anyone out there replaced it?

    Audi did have a class action lawsuit for these issues with their lights but I missed out on the timeframe to get mine fixed and am kicking myself for it.

  51. I’ve changed my bulbs before, really not that hard. Disconnect your battery and let the car sit if you’re really worried about it, although I didn’t…

  52. Hey Nick – your post is really helpful and I keep coming back to it. Unfortunately my pass side headlight swivel module appears to have failed. My VAGCOM indicates an intermittent mechanical failure. The headlights auto-level and aim at start up “dance” most of the time, but sometimes the right side you can tell is just having a tougher time! For the first few weeks I needed to only start/restart the car and I would be good for the remainder of the trip. Now, it still tries to dance but can’t get to the correct position. Then you can tell it has completely failed because it just kind of droops down to the right. Now, the worst part is that my cluster screams at constantly in the most random cadence. One question – do you know what kind of role the ballast plays in the AFS function? I have heard some conflicting information on that. I believe it would be easier to replace the ballast first rather than open up the headlight. But given the VAGCOM fault, right now I think my best bet is to buy a headlight from car-part.com and replace the swivel module. But of course if there is an easier way I’d like to try that first. I think tomorrow morning I’m just going to find/pull the fuse…then aim mechanically if I need to.

    Anyways thanks for the good post. I’ll try to post up my solution. And if I end up with a bad swivel module, I’ll see if I can tear it down and find the failure.

  53. I’m not sure if the ballast plays a direct role in the AFS functioning, or if it’s just a common trigger of a “dipped headlight” warning – if it does, I would assume only in transferring power to the swivel module, but it sounds like your AFS is getting plenty of power, so my guess is the swivel module itself is bad on your lights. You’re probably best off buying a new (used) headlight off eBay or the like with AFS and going that route.

  54. Hi, my UK spec 2009 TT roadster has Xenon Plus adaptive headlights, which are very good. The inner headlamps have what appear to be halogen bulbs, but in no circumstances do they illuminate. Main beam, dipped beam and headlamp flasher all operate from the outer lamps only. The car has normal sidelights and under bumper foglights which also work OK. What function do the inner lamps perform? Neither the driver’s handbook or the local dealership are able to explain this.

  55. My S4 has something similiar, my guess is that bulb is intended for different (non UK) markets, hence why it doesn’t light up for you. In the US we have City Lights and Daytime Running Lights, and the City Light (what I think you’re referring to) only comes on when the headlight does. I’m guessing if you changed your headlight settings in Vag-com you could get it to turn on, although not sure what the benefit would be.

  56. Hi Nick, thanks for the reply. It nudged me to look at the front of the car in daylight with the engine running and the light switch set to “Auto”. In these conditions they do illuminate and are daytime running lights, and as the ambient light reduces they are switched off as the xenon headlights come on. DLRs are now very popular in the UK, with most new cars here since around 2011 having LED DRLs.
    So problem solved. Thanks, Graham.

  57. when you say you reached into the headlight and pulled it back out to realign it could you be more specific how you did it because i have the same error and my projector looks the same way as if its pushed out of its socket.

  58. Hi John – it’s hard to say, it will either pop back into place, or the mounting bracket is cracked/broken in which case it won’t line up. Just be gentle and see if it naturally goes back into place and stays there – if not, it’s possible the bracket is broken – it’s a pretty flimsy piece of plastic that holds the projector in place.

  59. I have a 2005.5 audi a4 that I just recently purchased used from a private seller. I have noticed it flickering and it seems that when I hit a slight bump just the left side goes out and it says left dipped light. I had it checked out at the local mechanic and they weren’t sure what to do. I took the car home and then when I went to start it the battery was dead. Took it back to them and they had to completely replace it, they thought that my problem was fixed but then the same thing happen but if I turn the lights off and back on again they work… any suggestions on what to do next or what the problem could be?

  60. If it’s flickering, it’s either the bulb or the ballast most likely. I’d start with replacing the bulb, it’s possible that your 2005.5 is still on original bulbs and they’re just on their way out…

  61. It flickers for a bit and then goes out. If I turn the lights off and back on it will work again for a few minutes. Could it still be the bulb?? I thought that once the bulb goes out its out for good.

  62. hi i have an audi allroad 2001 and have change the headlights to xenon dipped beam no have the error light and also effecting the air suspension any ideas on what to do.


  63. How is it affecting the air ride? Are the headlights adaptive? If so, there is a sensor that goes in the wheel well that adjusts the light based on ride height, so if you’re missing that it could explain why the headlights are out of wack?

  64. i changed the two air springs last week on the rear and everything was fine then installed new headlights which are xenon on the dipped beam and original lights where halogen so error came on as i think the car is not detecting them. the old lights where the kind that move up and down when you first switch them on the new ones do not have this feature.
    the suspension keeps putting the rise and lower lights on when driving for example today the down light was flashing on level 2 but the level 3 light was blinking so one going up and one down never had this before.

  65. Hi Adam – did you change your settings in Vag-Com to the new headlights? You’ll want to update [55] Headlight Aim Control – it sounds like you went from Adaptive to Xenon Plus, so if your car’s settings haven’t been updated that will probably cause the issue: http://wiki.ross-tech.com/wiki/index.php/Audi_A6/S6/RS6/allroad_%284F%29

  66. thanks i thought something like that i will need to take to garage is it a quick thing to do and not expensive

  67. Nick, Do you know how to tell if the adaptive headlights are working. I notice that they go “from down to up” when I turn on the car because the light shines on my garage door. I am not so sure about the “left to right” while steering.

  68. hi if i get a vag-com cable can this be done by myself?

  69. @adam – yes, you can buy a vag-com and do yourself, although they cost about $200. Or you can find a shop that specializes in VW/Audi to do it for you, it should only take a few minutes…

  70. They should “dance” up/down/left/right all at warmup, so it’s possible the left/right is broken. You should also be able to test just by turning the wheel in neutral, or driving at a really low speed and turning sharply. Face up against a wall or garage door so you can see the beam pattern clearly.

  71. does the vag-com cable just give you the error codes

  72. No, it can change the settings/codes themselves as well. Unless you buy a knock-off cable, then it sometimes can’t change the codes.

  73. does the cheap cable off amazon not do the job

  74. The cheap cables on Amazon, eBay, etc. have only limited functionality – basically they can clear errors and maybe edit some codes, but can’t edit nearly as much as the Ross-tech cables can – so it’s hit or miss as to whether the cheap cable will be able to edit the code you actually want to change. I recommend investing in the official Ross-Tech cables, it’s well worth the money and pays for itself by allowing you to skip a lot of time/money at the dealership getting yoru car diagnosed or fixed.

  75. Helena, same problem on my 2005.5 A4 2.0t, did bulbs on my own, pain in the A$$. Still had the same problem so moved onto the ballast, same problem. The problem suddenly went away a couple months later only to have it come back again. I am now into another 3 months without the issue with no explanation from mechanic or Audi..

  76. I should also mention that my headlights were dipping and shutting off…

  77. I had error for dynamic cornering light motor Vcds showing below error.
    02627 – Dynamic Cornering Light Motor; Left (V318)
    010 – Open or Short to Plus – MIL ON

    I got it fixed by removing headlight, measuring connectivity to motor and finding out that one coil was broken. Then I had to drill hole to headlamp case to be able to remove the cornering motor. After that the motor was easiest ever to maintain ie taking it apart was dead simple. In the end it turned out that coil wire was disconnected from connector, since it is just pressed. I reconnected + tinned it. Then reassembly and sealing the drilled hole + clearing the codes. All can be done in 3 hours

  78. Pingback: Headlight dipped - fixed! - AudiWorld Forums

  79. Hi Nick

    I have a 2006 Audi A4 2.0T and the driver side parking light, left rear blinker light, reverse lights, and the left rear brake light won’t work. I tried changing the bulbs and they still would not work. What can the problem be?

  80. To have that many bulbs out it sounds like more of an electrical issue – I’d start by checking your fuses, and if that isn’t the culprit running a Vag-Com scan and see what errors it returns…

  81. Hey Nick, I have a 2007 Audi a4 and hids w/afs. I had a dipped headlight error. I recently replaced my headlights bulbs with the one from your link and also DRL and city lights mod. The small bulbs flicker a little. Which I used a 25w10omh. The dipped error cleared but I get a left high beam error light, which seems to be brighter than the left and I can only tell in the reflection of another vehicle (riding their bumper). Any ideas?

  82. Hi. I have UK 2008 audi A4 Avant. Upon start up with main beam on the driver side light goes off after a few minutes. Get a dipped driver light warning. Turn car off and let it cool and it’s all good again for a few minutes. Lights are xenon. Any ideas?

  83. That sounds like a pretty common case, I’d read through this article and follow those steps in order! Doesn’t sound like an issue with AFS, either bulbs or ballasts. Cheers.

  84. You can adjust the level of the beams, its possible when installing the DRL you knocked the projector out of alignment or angled it upward by mistake. Try adjusting the beam to point lower and visually inspect the projector itself to make sure it’s not off the track or misaligned.

  85. I have a 2007 Q7 with HID lights. For about 2 weeks or so the right side headlight hasn’t been coming on everytime I turn the switch. Sometimes it comes on and other times it doesn’t. I thought there was a lose wire problem so last saturday I took the whole headlight housing off and cleaned all the contacts – still doing the same thing. Do you think it could be the bulb? When it comes on it stays on until I turn it off. Any ideas?

  86. Hey Nick, having similar problems with my headlights on my 2006 a4. The adaptive headlight warning symbol started flashing on me last week for no apparent reason…figures. I had both my bulbs replaced about 6 months ago so it makes me think it’s not the bulbs.On start up they do the standard adjustment test so I know the motors are working. The sensors on the suspension are intact and plugged in. Everything opperates accordingly however that warning light remains on. What are your thoughts on the adaptive range module going out or being bad?

  87. It sounds like the motors are fine if the lights still “dance” at startup. Perhaps the ballast? That sounds strange though. Can you do a VAG-COM scan to see what error codes come back? That might help pinpoint.

  88. I ordered a scanner earlier this week so I’ll be able to do a scan soon and get back to you. thanks for the response.

  89. Hey Nick i have a 2004 Audi A4 that I bought at auction. It’s passenger side low beam headlight wasn’t working so I replaced it with a new bulb. It worked great for a few minutes and I cut the car off. Curious I turned the car back on and the light isn’t working again. What should I do?

  90. Did you check to make sure it was screwed in all of the way, and perhaps has a bad connection?

  91. Nick – I’ve come across your blog a handful of times and appreciate all your posts. As a long time VW/AUDI enthusiast it’s cool to see this type of contribution from someone outside of the main forums.

    Anyway, I have an 05.5 B7 S4 avant that I lowered slightly just after purchase and since my dipped/low beam lights are pointing higher than they should – getting folks flashing me all the time. I’ve experienced similar results with VW auto leveling Xenon lights due to one of the sensor arms getting put to the wrong direction during the suspension install by accident. I’ve been trying to find something to show which is the proper direction so I can sort it out but reading this post I’m wondering if it needs to be bent as mentioned above. Curious on your thoughts before I get under the car.

    BTW – any inner headlight bulbs on cars with bi-xenon have a purpose even if they aren’t a DRL. It’s called “flash to pass” lights in case you need to flash your lights when the Xenon lights are not on – the Xenon wouldn’t light up quick enough. All MKV GTI/GLI operate this way with the Xenon lights defaulting (stupidly) as the DRL’s.

  92. I meant to include for the MKV GTI/GLI there was confusion on those bulbs since with DRL’s active you would never be able to get those inner lights to operate. When the DRL’s are disabled and the lights are off they work when pulling on the high beam lever. One of the fun bits with VCDS is you can update the settings to have these come on with the high beams and have the fogs stay on giving you a 6-light high beam. I haven’t been able to figure out a way to do this with the B7,though.

  93. I didn’t have to adjust my sensors when I lowered my car, but some folks have. There is a manual adjusters on top of the headlight you can adjust with a flathead that I would start with, you can get some decent adjustment out of that and it might be enough…unless you have a warning light, then perhaps you do need to bend the sensor in the drivers side front wheel well. Start with the easy stuff though 😉

    Fair point on the flash to pass – I revise my statement of them being worthless to “mostly worthless” lol.

    Thanks for the kind words!

  94. I was successful adjusting the headlight beam height via VCDS as my lights don’t have a manual adjustment control. In case it helps others in the same situation I updated the Workshop code in the Xenon Range module (55) to a higher number as mentioned in this thread: http://www.audizine.com/forum/showthread.php/310536-Any-way-to-aim-headlights-higher?s=41b8f092a9ed5766e1e151ce3eb05e78&p=7427711&viewfull=1#post7427711

    While the thread is in reference to the B8 I had success using the logic. My default code was 06325 and I updated to 08325 which lowered the beam height. I did it at home blindly and just waited to see what it was like when I drove at night. It worked but I think I went too low so I’ll be finding a spot tonight to play with it where I can see the changes happen as I do it.

  95. Hi Nick, I have a golf mk5 gti (2007) with a aftermarket hid kit fitted and every now and then the passenger side doesn’t always fire up I have to turn them on and off. Any ideas how I could fix this.

  96. Most likely a problem with the ballast, or the wiring connectors are loose. Check your connections first where the adapter of the aftermarket ballast plugs in, otherwise you may want to order a new ballast…

  97. Hey Nick, I have b7 s4 and my lights tend to go out random or right after start up. when this started first happening my left bulb went out and replacing it seemed to help for a while. Now my right bulb is acting up sometimes the left one too. Today I noticed both my bulbs went out and flickering the light switch did not help until I turned on my fog lights, all lights light up, then they started flashing individually. My fog lights have hids that the PO installed, no errors for them. I have changed bulbs but it does not seem to be any better?

  98. Sounds like the ballasts could be frying the bulbs, hence the issue. I’d pick up some new ballasts (they are the same as Chrysler 300) and give that a go, you’ll need new bulbs too since the current ones are getting excessive wear from the ballasts if that is indeed causing your problems.

  99. Hello Nick, I have a 2006 audi a4 avant, left front xenon headlight flickers out and then dipped headlight displays… I just have to turn my headlights off and then on again and it comes back on, sometimes I have to do this a few times and then it stays on… this problem does not happen every time I drive the car in the dark but seems to happen more in the winter. getting tired of flashing the people in front of me… what can i do before letting the dealership empty my pocketbook

  100. Hi Oliver – I’m afraid I can’t help much more than trying what is already listed in this post – sounds like it could be ballasts, but hard to say. You could try switching the bulbs (put current right bulb in left housing and vice versa) and see if the problem stays on the drivers side or moves with the bulbs – if it moves, replace the bulbs, if it stays, replace the ballast on the faulty side.

  101. Thanks for the reply, now the last couple of days the left light flickers couple times on start up then is all good.

  102. Hi, I have a 2011 A6 advant, s-line with zenon lights. The inner bulbs only seem to work when pulling back on the main beam lever as mentioned by Jer on the 3rd of January. My mate just got a skoda superb 2012 with xenon lights. On main beam with the switch in auto. The inner bulbs are lit as well as the zenon lights raising to main beam position. These give a far superior light than the audi. Jer mentioned that these inner lights can be switched on to be used with the main beam. Does anyone know how this is done. My pervious car was a 2011 skoda superb with standard lights and they were brighter than the A6.. Thanks in advance

  103. Hi I have a 2003 audi a4 1.8t and my driver side headlight went out. I replaced the bulb that didn’t work, I took the ballast from the passengers side and put it in the drivers side then it worked so I ordered one up and two days later when I went to put the new one in the drivers side was out again. what is the next thing I should try?

  104. Sounds like there must be something bad going on with the wiring to keep frying the ballast or triggering an error – I’d suggest replacing the entire headlight housing, including bulbs and ballasts. You can pick them up on eBay for fairly cheap, and while it’s overkill, it’s probably the only surefire way to eliminate from here.

  105. Hey there, like the blog. I have a 2003 Audi A4 and I just bought and installed aftermarket headlight housings that have the newer style LED look. I got everything swapped over and working good (the housing uses your D1S xenon bulb instead of some that use the cheaper aftermarket HIDs). I wasn’t able to get the actual leveler out of the stock housing cause I was afraid I would break it, so the leveling light comes on in the car. Do you by any chance how to take that out of the housing? And also if you can make it work with these aftermarket housings? Thanks!!

  106. You’re probably better off to just pull the fuse for the auto-leveling feature, or re-code your headlights via Vag-Com to disable it. I dont think you can remove the components and retrofit them easily.

  107. Hey Nick great blog, really appreciate you taking the time to respond to us who need a little help, quick question. Im in a similar situation as Andrew, I installed aftermarket headlights on my 2004 Audi A4 (D1s xenons) but when I turn my lights on at night only the middle D1S light up and the ones on the sides will not but they will work when you use the turn signal. Also the dashboard will flash and tell me the left parking light and left turning lights are bad as well as the right. Any feedback would be awesome. Thank you!

  108. Sounds like it could be a problem with the aftermarket headlights. Was your car equipped with halogens before? The other thing to check would be the coding of the headlights in VAG-com, perhaps they need changed?

  109. Just to let you know one of your pages for replacing headlights is not working:

  110. It seems to be working now, is it still not working for you? If so, mind sending a screenshot to cars@nickroshon.com so I can investigate? Thanks for the heads up!

  111. Hello

    Can someone please give me more advice about an error for my headlights..
    I drive an Audi A4 B7 2007 with Bi xenon adaptive cornering headlights..
    I have had an accident recently and I have replaced the headlights with regular BI xenons without the adaptive cornering..

    Now everytime I start my car, I get the error on my dashboard that is also mentioned above..
    What do I have to change (VAGCOM) so that I would not have the error anymore?

    (sorry for my english)



  112. Hi Barry – you could either pull the fuse for the adaptive headlights (I believe it’s Fuse #10) to disable it, or in Vag-Com you can change the programming for your headlights that way too. Good luck!

  113. Hi Nick – Thanks for the great site, it helped me out before with changing the bulbs in my 2008 A5 but unfortunately I have another light related issue.

    When the main lights are switched on by either the light switch in Auto or “on” mode I get a message telling both my left and right main / dipped lights are not working. It would seem very coincidental that both the bulbs would fail at the same time (they don’t come on). Looking on page 273 of the manual here
    I cant see a fuse that is just for the lights. Any help would be appreciated.

  114. Hey Nick

    Thanks for your reply

    Can you maybe explain to me how to do it on vagcom because ive been searchin for it but cant find it!!


  115. Hi barry – check Ross-Tech here: http://wiki.ross-tech.com/wiki/index.php/Audi_A4/S4/RS4/Cabriolet_%288E/8H%29 I think you need to change from adaptive coding to Xenon Plus coding.

  116. Are other lights in your headlight housing working (e.g. turn signal bulb, etc.)? If so, I doubt it is a fuse. If you are confident the bulbs are installed correctly and plugged into the ballasts, it seems you have a bigger issue going on.

  117. Hey Nick, I have a 2004 A4 Quattro. Have left and right dipped headlight error message. High beams work perfect. When I switch to low beams they do not work. Have replaced the bulbs on both sides and still the same.

  118. Either the wiring is loose, or the ballasts are bad. Did both go out at the same time?

  119. It has the H7 halogen bulbs so I don’t think it has ballasts. No they didn’t go out at the same time, it was 2 days apart. I have checked the connections for corrosion and/or non contact and both appeared good to go. I was a F/A-18 Hornet mechanic for 18 years and this dang headlight problem has me stumped. It’s driving me absolutely nuts !

  120. I took my A5 to the official Audi dealer in Chelmsford UK and was told both bulbs had gone. They replaced them at a discounted rate of £480. I’m don’t believe them, I think it was something else simple but they replaced the bulbs anyway. This is because a) they kept referring to the OEM bulbs that were in there being expensive, when I had replaced them myself 3 years ago with non-OEM. b) He kept telling me they had to “charge the bulbs with gas”?

  121. tom here again,
    i’m having the opposite issue everyone else seems to have and can’t find a fix anywhere. my passenger side headlight works great, no flickering, no dipped light error, but it won’t switch from low to high beam. the driver side works perfectly with no hesitation, but there is no response or sound from the passenger side. they both auto level and turn / move up or down like they should, it’s just the high beam on that side. my audi dealer told me to replace the entire unit, but i’d prefer not to spend several hundred on a headlight. thanks in advance!


  122. @Tom, you’ll need to take apart the headlight and try to figure out why the motor that flips from high beam to low beam isn’t working, or the dealership could be right and a full-on replacement is in order. No experience there, good luck.

  123. Hello Nick. Thanks for this blog. I have a 2009 Audi A5 Quattro Sline…It’s a beautiful car… and I just got a 300.00 headlight change. The next day it was out again, so this page has helped me focus on the ballast and not concentrate on wasting more money on bulbs….Keep up the good work…

  124. Happy to help, but sorry about your predicament!

  125. Hi Nick
    I have a 2007 Q7 can I buy led head lights that will be a direct fit

  126. Do you have the LED headlights currently, or are you trying to retrofit? A lot of times the best place to find OEM parts for retrofits are eBay, there are sellers in Europe that can get the parts a lot cheaper than we can in the US and will ship it pretty cheap too.

  127. Hi ,
    I have a Audi Q7 and recently the passenger side head light started to flicker and then then the “bulb out” signal comes on. Replaced the bulb but the problem did not go so put the old bulb again. I tehn replaced the ballast unit but the problem is still there. Can you help? Riza

  128. Hi Riza – do you have the auto-leveling/adaptive feature to your headlights? If so, can you tell if that is working or not? If the bulbs and ballasts are fine, it is likely an issue with the headlight beams not adjusting/aiming properly, which is often a broken motor or mount inside the headlight which positions the beam – most common with adaptive headlights.

  129. Hi Nick,

    I’ve got a 2002 Allroad. Just got a “bulb out” idiot light on my dash. Sure enough , the left headlight is out. I plugged in my VAG-COM and got not codes relating to the lights. Is this just a bulb then? Forgot to mention, HID bulbs. New leveling sensor 3 years ago, removed air suspension shortly thereafter, never have had any other lighting issues.


  130. Sounds like it’s probably just the bulb being out in this case. “Dipped headlight” just means the headlight isn’t working, it’s a really broad message that can cover a lot of issues, which is why it’s so frusterating to remedy. If you had aftermarket HID bulbs, sometimes they go faulty quicker and aren’t built as well, I bought some really cheap ones made in China and had them go bad in less than a week…

  131. Hi nick, I’ve got a question about my 04 a4 1.8t, so it still has the factory bulbs(self leveling) and recently when I take a turn my passenger side light will go off. Once I’m through the turn it will come back on, sometimes it’ll stay on and other times it will go off and stay off. If I turn my lights off and immediately back on, my driver side light will be off and the passenger side will be back on until the next turn I take.. I have to turn my car off completely and let it sit for a minute or two, to get them both to come back on again. Any idea what could be the issue, bulbs, ballast, or something more? My Audi is also lowered quite a bit, and still has the factory bulbs.

  132. Oh man, that is a strange one. It almost sounds like an electrical/wiring issue, but I’m not sure. I kind of doubt it is the bulbs, unless the connector to the bulbs is really loose or something. If it gets worse and no connections are loose, you might just want to replace the headlight housing itself to rule out any potential issue. Is the car throwing any codes or warning lights that give you an additional info when you scan via Vag-com?

  133. I’ve yet to have access to a vag-com. I have an appointment at my local dealer Monday for a full electronic diagnosis. They weren’t sure what it could be when I called. I’ve also had my factory alarm go off while I was driving, one morning. I’m stumped myself.

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