There are 6 owner-reported powertrain & transmission complaints for the 2015 Audi A4in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
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.
Data synced from NHTSA on Apr 26, 2026