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Fuel systemPart report

2012 Audi A4 Avant Fuel system Problems

Complaints
3about this part
Share
12%of 26 total for the year
Median mileage
56,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the fuel system of the 2012 Audi A4 Avant, 12% of the 26 complaints for this model year. Where a mileage was given, the median is 56,000 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.

“I recently purchased my 2012 Audi a4 after a few weeks the check engine light came on after taking my car to have it diagnosed I was told ( system was to lean in bank 1) I was told I needed a new o2 system, light never went off and I was told next that their was a leak in a vacuum seal and lastly my coolant level was depleting at a rapid speed and I was told that their was a leak from the water pump.”

NHTSA complaint #10750153, filed 2015-08, 56,000 miles

“Upon having 3 consecutive oil changes, my car suddenly began to burn oil (no leaks) after the first oil change upon driving less than 900 miles. Then the second oil change did the same thing upon driving under 300 miles. It actually ran out of oil totally. I added oil as instructed by the car, and it burn the oil withing 250 miles of driving. I took it to the dealer, who acknowledge that this model and year had the wrong engine put in the vehicle. They would need to replace the entire engine at my cost, with possible reimbursement to me. Not acceptable, since they acknowledged the defect. …”

NHTSA complaint #11101607, filed 2018-06, 64,000 miles

“Only five minutes after starting car in morning, engine rapidly lost power and quit completely while in 60 MPH traffic on heavily traveled interstate 526 in charleston, sc. Coasted car out of traffic lanes to side, a very dangerous location on elevated roadway. Had car towed to Audi dealer, who said they tested and found fuel pump had failed. They replaced fuel pump and engine seems to run normally now. In four decades of driving I've never had a fuel pump fail. This one put my wife and me in jeopardy due to the sudden and complete loss of engine power in middle of fast, heavy traffic. …”

NHTSA complaint #10583872, filed 2014-04, 29,000 miles

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
2012312%
2011413%

Other parts of the 2012 Audi A4 Avant

Engine
16 complaintsOther or unknown
4 complaintsElectrical system
3 complaintsSteering
2 complaintsTransmission and drivetrain
2 complaintsAir bags
1 complaintsEngine cooling
1 complaintsEquipment
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaintsWheels
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 31, 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