There are 5 stored owner reports matching the electrical 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 5 of 5 matching reports.
Open the full vehicle complaint log (all categories)Odometer Fraud. The contact purchased a 2012 Audi A4. It was discovered that there was a mileage discrepancy. The vehicle was a private sale. At the time of the purchase, the mileage was 90,512 and at the time of the registration, it was discovered that the mileage was 175,000.
TL* THE CONTACT OWNED A 2012 AUDIO A4. THE CONTACT STATED WHILE DRIVING AT 25 MPH, SHE SAW SMOKE EMERGING FROM THE FRONT OF THE VEHICLE. UPON EXITING THE VEHICLE, NOTICE FLAMES IN THE HEAD LIGHT COMPARTMENT UPON OPENING THE HOOD. THE CONTACT STATED THEY ATTEMPTED TO EXTINGUISH THE FLAMES WITH WATER BUT THAT FAILED AND THE FIRE DEPARTMENT WAS CONTACTED TO EXTINGUISH THE FLAMES. THE CONTACT WAS UNAWARE IF A POLICE OR FIRE DEPARTMENT REPORT WAS FILED. NO INJURIES WERE SUSTAINED. THE CONTACT STATED NO WARNING LIGHT WAS ILLUMINATED. THE VEHICLE WAS TOWED TO A JUNK YARD. THE VEHICLE WAS NOT TAKEN TO A LOCAL DEALER OR INDEPENDENT MECHANIC FOR DIAGNOSIS. THE CONTACT STATED THAT WITH THE FIRE DAMAGE SHE BELIEVED THAT VEHICLE WAS A TOTAL LOSS. THE MANUFACTURER HAD NOT BEEN INFORMED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 120,000.
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.
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.
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". *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.