Audi Q8 problems & complaints

Engine overheated and dash warning light did not illuminate until coolant was completely overheated. i followed the light, pulled off the road and let the engine idle until the light when away as directed and proceeded to drive approx 10 miles total distance to work from first warning light to full engine failure with electrical system failure due to being melted and three of my cylinders were misfiring. Audi states i need a full engine replacement at my expense and is not taking ownership of failed warning system. Engine for car quoted 25-30k for replacement. total car value with approx. 80k miles is 17k. Absolutely ridiculous.

Electrical vehicle started displaying electrical malfunction issue since December 2025, at the time Audi San Juan said there was not fix available at the time. Finally I was told that an issue fix was available, took it back in May and they said it was fixed but it wasn't. Waited for another appointment available for them to have a loner vehicle available. Took it back on June 3rd and finally on June 22nd they said that the issue detected was one of the cells in the battery ha gone bad. Unfortunately the part was on back order and Germany could not confirm when it could be sent. Part was finally received on September 3rd, today I received a call that the part did not fix the issue and the…

I am reporting a recurring problem with the front passenger-side window on my 2020 Audi Q8. This issue began when the vehicle was approximately two years old and has continued intermittently. When attempting to close the front passenger window, the window will sometimes automatically reverse direction and go back down instead of closing. On September 7, 2026, after the vehicle was parked and turned off, the passenger window lowered and would not close normally. Each time I attempted to raise it, the window would reverse and lower again. I was eventually able to close the window only by repeatedly operating the switch in very small increments until the glass finally reached the fully closed a…

I own a 2019 Audi Q8 3.0 TFSI that has been regularly maintained and serviced through authorized Audi dealerships. The abnormal engine ticking/knocking did not suddenly begin at 91,000 miles. A similar noise could be heard earlier, but it was not identified by Audi service as an internal engine/piston problem. Because the vehicle continued to be serviced by Audi, I believed the sound was related to the fuel injectors or normal engine operation. At approximately 91,000 miles, the noise became noticeably worse. At 91,623 miles, Audi San Jose diagnosed the knocking as related to the engine pistons, classified it as requiring “IMMEDIATE ATTENTION,” opened Audi TAC case SF-1690700, and conf…

I am reporting an ongoing cooling-system/water-pump issue with my 2020 Audi Q8, approximately 75,000 miles. The problem began when the vehicle repeatedly displayed a low-coolant warning. Inspection confirmed the coolant level was very low and a significant problem involving the coolant pump/vacuum system was diagnosed. The water pump was subsequently replaced. After the repair, the vehicle initially appeared normal, but problems continued. I experienced engine sputtering/rough running and the vehicle felt as though it might stall while stopped at a traffic light. A Drive System Malfunction/check-engine warning appeared, and cruise control/driver-assistance functions became unavailable. The …

At approximately 52,000 miles, on August 11,2026 (or earlier), my vehicle developed a coolant leak that was traced to a failed coolant shut off valve. The coolant shut-off valve failure allowed coolant to migrate into the vacuum harness, vacuum reservoir which contaminated the water pump. This resulted in the vacuum system becoming filled with coolant, compromising components that rely on vacuum pressure to function correctly. The combination of these failures — water pump contamination, coolant shut-off valve failure, and a coolant-contaminated vacuum system — points to a defect in the design or manufacturing of these components rather than an isolated or wear-related issue.

While traveling on a major freeway between 65mph and 70mph, vehicle alarms started sounding and numerous alarm / warning messages appeared on the dashboard display, while at the same time, the automatic door opening mechanism (e-latch system) unlatched and partially opened the driver’s side door. The partial opening of the door at high speed is hazardous, and could also cause a major distraction, resulting in a crash and/or danger to others in the vehicle and/or on the highway. The vehicle is currently being inspected at a dealership. There were no warning lamps, messages or other symptoms of the problem prior to the failure. The warning lamps, messages or other symptoms as described a…

On [XXX] about [XXX], I was driving my 2024 Audi Q8 e-tron Premium Plus (VIN [XXX]) in a private parking garage while on the clock for work. I had just left a work meeting and was traveling back to my office. I was backing out of a parking space next to a concrete column when my passenger-side mirror contacted the column. The vehicle’s proximity sensors beeped, which appeared normal. I then pulled forward slowly to straighten the vehicle and assess the mirror. My foot was initially on the accelerator because I was attempting to move forward slowly. The vehicle suddenly jerked and accelerated extremely rapidly and unexpectedly. I immediately moved my foot completely from the accelerator to …