There are 6 stored owner reports matching the powertrain & transmission leading-label group for the 2015 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 6 of 6 matching reports.
Open the full vehicle complaint log (all categories)The engine failed while I was driving. The car did not show any warning lamps, messages or other symptoms, it just jumped and died. I had the car towed to my mechanic. The mechanic thought it was the starter, but then realized the chain had broken and it hit other parts of the engine, including the pistons catastrophically. The engine is not reparable. My safety was a risk as the car died on a busy road. Audi has asked that I bring the car, at my expense for them to inspect, without offering anything. I have a letter from them indicating that they will not help. ABS SYSTEM and Brake Actuator that is failing or defective. Vehicle was taken to the dealer but was not repaired.
THE VEHICLE ROLLS FORWARD WHILE FACING A DOWNHILL, AFTER SHIFTING INTO REVERSE.
TL* THE CONTACT OWNS A 2015 AUDI A4. WHILE THE VEHICLE WAS STATIONARY IN THE REVERSE POSITION, IT ROLLED FORWARD. AUDI OF NORTH SCOTTSDALE IN SCOTTSDALE, ARIZONA WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 13,500. THE VIN WAS NOT AVAILABLE.
I HAVE NOTICED AT TIMES WHEN THE VEHICLE IN PUT INTO REVERSE GEAR THE VEHICLE INTERMITTANLY FAILS TO MOVE
S TIMES NOW, THE VEHICLE INTERMITTANLY FAILS TO MOVE WHEN PLACED IN GEAR, REVERSE OR DRIVE. ADDITIONALLY, WHILE UNDERWAY, TRANSMISSION "BUCKS" AND IN SOME INSTANCES, ACCELERATES RAPIDLY WITH MIMINAL ACCLERATION AT ACCELRATOR PEDAL. I HAVE A VIDEO OF THE LATEST INCIDENT BUT AM UNABLE TO UPLOAD IT TO YOUR SITE.
TL*THE CONTACT OWNS A 2015 AUDI A4. THE CONTACT STATED THAT WHILE AT A STOP LIGHT, THE VEHICLE ROLLED BACKWARDS WHEN THE VEHICLE WAS IN DRIVE. THE FAILURE RECURRED SEVERAL TIMES. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 1,000.
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.