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Electrical systemPart report

2012 Audi A4 Avant Electrical system Problems

Complaints
3about this part
Share
12%of 26 total for the year
Median mileage
63,270miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the electrical system of the 2012 Audi A4 Avant, 12% of the 26 complaints for this model year. Where a mileage was given, the median is 63,270 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.

“After a failed alternator and battery were replaced my entire electrical system has freaked out. 60,000mi on the dash, and my car is a brick. After a month on the lift the most well certified mechanics in my area, including some of Audi's own, are at a complete loss. The only thing we've come up with is that the computers turn on every 30 seconds while my car is off.”

NHTSA complaint #11241469, filed 2019-08, 60,000 miles

“Car has been intermittently shutting down while driving. And starting up the car has become more and more randomly justified. Some times it starts up right away, some times it just takes a few cranks. Doesn't matter if it's warm or cold engine. I pulled ecu code and it says u0100 which is loss of communication to ECM. Well this is a safety issue because I can be driving just fine on the road but all of a sudden it just decides to quit cause a havoc on a busy traffic in houston.”

NHTSA complaint #11218134, filed 2019-06, 66,540 miles

“2012 Audi A4 AVANT with 55,000 miles and the driver's side door latch, mechanism and sensor are intermittently failing. Central locking thinks door is open, dome lights and door ajar chime constantly turning off and on. Fixed at Audi dealership. Audi USA deemed the issue wear and tear .”

NHTSA complaint #10564936, filed 2014-02

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2012312%
201126%

Other parts of the 2012 Audi A4 Avant

Engine
16 complaints
Other or unknown
4 complaints
Fuel system
3 complaints
Steering
2 complaints
Transmission and drivetrain
2 complaints
Air bags
1 complaints
Engine cooling
1 complaints
Equipment
1 complaints
Visibility (wipers, defrost, mirrors)
1 complaints
Wheels
1 complaints

← All problems reported for the 2012 Audi A4 Avant

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