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Electrical systemPart report

2006 Audi S4 Electrical system Problems

Complaints
4about this part
Share
13%of 30 total for the year
Median mileage
50,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the electrical system of the 2006 Audi S4, 13% of the 30 complaints for this model year. Where a mileage was given, the median is 50,000 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Audi 2006 S4, there is a more frequent occurrence of my headlights dipping my xenon headlamps will stop working while driving, it would either be the left or the right, but not until last week when both went out at the same time. I would put car in neutral while driving and turn car off and back on and it will reset itself and lights will then work, it seems to stop occurring when car is warmed up and it is worse with colder weather and vibration or bad roads. …”

NHTSA complaint #10379536, filed 2011-01, 50,000 miles

“While driving, the right headlight flickered and went off (hid lights). The information system registered an error dipped right headlight head light comes on when ever the car is started, and goes out with the same error again at a later time. So far this error has occurred the last 3 times I have driven (all three times since first occurrence). This is a safety issue since night illumination is involved. I have read on internet Audi websites that this is an all too common problem, that Audi of america is not taking seriously as far as offering a clear solution.”

NHTSA complaint #10441283, filed 2011-12, 101,000 miles

“Hid xenon headlights randomly flicker and shut off during driving. It's getting worse. Dealers never found problem which recurs continually so they never fixed this issue under warranty after being asked several times since the vehicle was new. 100's of other stories about this online. Huge safety issue when headlights just quit at random.”

NHTSA complaint #10451576, filed 2012-03, 5,000 miles

“As many others have noticed on the b7 models of Audi's. The passenger headlight will flicker and go out at random times, it is not a bulb problem it has been replaced multiple times. It is concerning when driving at night and randomly my headlight will shut off. Sometimes when I shut the car off and back in it will return. There is an electrical problem with these headlights as I have read in other places. Very dangerous and concerning they want to charge 1000+ dollars for every customer to put in a new headlight. It is their duty to ensure safety of their customers.”

NHTSA complaint #11170511, filed 2019-01

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
20201588%
201416%
201326%
2012314%
201128%
2010610%
2007215%
2006413%
2005512%
200427%
20021045%
20014754%
20004934%

Other parts of the 2006 Audi S4

Exterior lighting
22 complaints
Air bags
7 complaints
Equipment
1 complaints
Steering
1 complaints
Transmission and drivetrain
1 complaints
Visibility (wipers, defrost, mirrors)
1 complaints

← All problems reported for the 2006 Audi S4

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology