There are 3 stored owner reports matching the fuel system leading-label group for the 2012 Audi A4 in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 3 of 3 matching reports.
Open the full vehicle complaint log (all categories)HAVING ACCELERATION PROBLEMS. VARIES NOT CONSISTENT. WHEN APPLYING PEDAL TO ACCELERATE. THE CAR DOESN'T RESPOND. RPM DROPS TO ZERO. ENGINE STILL RUNS BUT NO MOVEMENT. RELEASING PEDAL AND TRYING AGAIN WORKS INTERMITTENTLY. SCARY WHEN TRYING TO GET CAR OUT OF DANGER.
FUEL IS LEAKING FROM THE FUEL PUMP FLANGE AND PRODUCING A STRONG GAS SMELL IN THE CAR. THE ISSUE IS VERY SIMILAR TO NTHSA CAMPAIGN 16V660.
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. WE WERE LUCKY TO GET OUT WITHOUT BEING HIT BY ONCOMING TRUCKS & TRAFFIC. *TR
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Aug 31, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.