Which parts fail
Components named in complaints (headlights, tail lights, turn signals, interior lights).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2006 Audi A4 owners, lightly cleaned up (personal details are redacted by NHTSA).
The left headlight flickers and turns off. Changing the bulb did not fix the problem and neither did changing the ballast. I found that there was a settled class action lawsuit however they said that the lawsuit extended the warranty for headlights to 5 years. The lawsuit was settled in 2013 and my car is a 2006 model so I am not sure how it could ever help me.
When driving at night right low beam will flicker and then go out. I get a warning icon referencing "right dipped headlight". If I turn the headlight switch from auto position to off position and then turn back to auto, the light will come back on. It will then stay on for a while and typically goes out again after some random time period causing me to repeat the process. I don't like doing this traveling at high speeds at night since I have to disable my headlights to get everything working again. I took it to the Audi dealer and they did their guided fault tests and found no faults. They "believe" the igniter is faulty which is a $625 part plus labor to replace. I didn't go ahead with their suggestion since they could not guarantee that it would fix the problem. …
Right after I purchased the car I started having problems, especially with the lights. My right headlight would consistently turn off, then some time later come back on. This would happen periodically, but the worst is when I am driving 60mph+ at night and lose all my lights. Running lights, headlights, high beams, fog lights, all of it. This happens consistently every week. About a month after purchase my right headlight went out and never came back on. I received an error on my dash that states "right dipped headlight." I checked it out and decided to change the bulb. Well, I did and that didn't work. I looked up more into it online and it's quite an expensive fix, and it's not guaranteed to even work. My headlight is out and about every week sometimes multiple times a week my lights completely go out unexpectedly. This is a huge problem with lots of people I discovered on google.
2006 Audi A4 quattro, a very annoying situation it also affects safety while driving in dark; I ignored it for few months as it got worst decided to take it in. They suggested to replace both igniters (xenon ballast) and bulbs. My Audi dealer said that Audi knows about this problem but doesn't know how to fix it -- changing the light bulb doesn't solve the problem. Since my car was just out of warranty it would be about $1600. This problem is intermittent. It has been occurring a lot recently with the cold weather. I can't tell for sure whether it is temperature related. This is a common problem and most importantly a major safety
The left headlight of my 2006 Audi A4 quattro has a head light problem as follows: 1. The left headlight flickers 2. It then turns itself off 3. The message "left dipped headlight" appears 4. The message is changed to a sign indicating that the lightbulb has failed. This problem happens every time I need to turn on my head lights, I took to dealer, they are not sure what part might be bad, so they recommend to replace almost all parts involve with that, and its costly. I checked on line to find a solution, I figured out it's not only me, there are hundreds of Audi drivers having the same problem in here and even in europe.
I get a "right dipped headlight" message and my right headlight goes out. I can correct the issue by turning the headlights off and back on but this is not safe after dark. The car has been doing this with increasing frequency especially over the past year. It occurs more when it's raining and more after dark-when you most need the headlights. It will cost me about $1600 to get the headlights replaced but apparently there is no guarantee that this will fix the issue. I have in no way damaged the headlights. We are the original owners of this car. This situation has been occurring for several years.
Headlights spontaneously go out while driving. Sometimes just the left, sometimes just the right, sometimes both. The dash reads "right headlight dipped" or "left headlight dipped". To correct the error one must turn headlights completely off and then on again resulting in a few seconds of darkness. Obviously this is very dangerous at night at highway speeds. There is no apparent repair for this problem and from extensive research seems to be a design issue.
I was driving on highway at night going at 70 MPH and suddenly I received left dip light warning and after 2 minutes received right dip light warning. I quickly have to reset the light after which both left and right lights came up. After some 20-30 min it happened again.there ere high chances of fatal crash at 70 MPH on a highway at night. I was lucky enough to escape this. This issue is intermittent but extremely dangerous for safety of passengers.
The headlights will flicker on and off, and have to be manually turned off and turned back on. Repairs and replacements of lights did not solve the problem. Complete removal of the xenon ballast and sealing the ballast seemed to correct the problem, and seems to be a defect in the manufacture of the ballast that causes moisture to invade, and short the headlights out.
Headlights will flicker / turn off intermittently when braking or traveling over small bumps resulting in a loss of vision at night. This will sometimes give the error "dipped headlight" and cause the headlight to turn off and remain off until it is reset.
Headlight complaints in other A4 years
Frequently asked questions
How common are headlight problems on the 2006 Audi A4?
NHTSA has 159 complaints about the lights of the 2006 Audi A4, 54% of the model year's 295 complaints. The component named most often is headlights (3 mentions).
Is there a recall for 2006 Audi A4 headlight problems?
No. NHTSA lists no lights recall for the 2006 Audi A4, though it has 3 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2006 Audi A4 headlight problems start?
Half of the complaints with a recorded mileage happened before about 58,000 miles, and 4% before 25,000 miles.
Is it dangerous?
Owners linked 1 crash, 0 fires and 1 injury to lights problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.