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 check-engine light has continued to return intermittently. There was also an issue with a loose cap following the water-pump repair, which was corrected. Despite this, the low-coolant warning later returned and the coolant reservoir was again confirmed to be low. Coolant was added and the vehicle was returned to the repair facility to locate a leak. The shop kept the vehicle for several days and ran it for approximately two hours while inspecting it but could not reproduce or locate a coolant leak. The check-engine light went out during testing but returned shortly after the vehicle was picked up and driven normally. A sensor was also replaced based on a diagnostic code, but the check-engine light returned afterward. I have now spent more than $3,000 attempting to correct these issues, yet the cause of the recurring coolant loss and warning lights has not been determined. I am concerned that this may represent a recurring defect involving the water pump/cooling or related vacuum-control system. My primary safety concern is the possibility of unexpected coolant loss, overheating, engine malfunction, reduced power, or stalling while driving. I am requesting that this complaint be documented and investigated for similar incidents involving 2020 Audi Q8 vehicles.

Source: NHTSA complaint ODI #11758701 · view all complaints for this vehicle at nhtsa.gov

My cameras are not working sometimes. I received a recall notification on my app regarding backup camera. I did a software update at the dealer audi of queens on 1/6/26. Cameras were working fine for a week, but now I started having issues again.

Source: NHTSA complaint ODI #11710994 · view all complaints for this vehicle at nhtsa.gov

The contact owns a 2020 Audi Q8. The contact stated while driving approximately 10 MPH and making a left turn, the vehicle independently activated the brakes, and the driver and passenger side seat belts tightened. The contact stated that there was a RED warning light illuminated. The contact stated that she had used the left turn signal. The contact stated that failure had occurred 3 other times while making a left turn with the left turn signal engaged. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the turn assist intervention safety feature had independently engaged and a software update was needed. The vehicle was not repaired. Additionally, the contact stated that there was an intermittent failure with the front view and rear-view cameras. The contact stated during the failure, the image on the screen either froze or flickered. The manufacturer was informed of the failure. The failure mileage was approximately 60,000.

Source: NHTSA complaint ODI #11635932 · view all complaints for this vehicle at nhtsa.gov

The contact owns a 2020 Audi Q8. The contact stated that while driving approximately 20 mph the steering wheel suddenly turned to the right causing the driver to lose control of the vehicle and crash into the curb and dirt. After the crash, the vehicle was undrivable and was towed to the dealer. No injuries were reported and no police report was taken. The cause of the failure was not determined. Prior to the crash the passenger side air pressure monitoring system would randomly become activated. The manufacturer and local dealer were notified of the failure. The failure mileage was 2,500.

Source: NHTSA complaint ODI #11450839 · view all complaints for this vehicle at nhtsa.gov

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 and sealed position. I have previously cleaned the window and window-channel area and attempted to resolve the problem, but the condition continues to return. Because the window can unexpectedly lower and can become extremely difficult or impossible to close normally, I am concerned about the reliability and safety of the window regulator, anti-pinch system, door control module, or related software/electrical components. This has been an intermittent problem for several years and is not normal wear or a one-time occurrence. I am reporting it so NHTSA can determine whether other owners of 2020 Audi Q8 vehicles are experiencing similar front-window failures and whether further investigation is warranted.

Source: NHTSA complaint ODI #11762522 · view all complaints for this vehicle at nhtsa.gov

I am reporting a severe safety hazard on my 2020 Audi Q8 directly caused by the software update for NHTSA Recall 25V900 (Audi 90TV). The recall shows as "completed" on my VIN, but it left the vehicle with an active driver assistance defect that did not exist before. No accident has occurred, but there is a severe risk of a crash. Following the recall, the Audi Side Assist (blind-spot monitoring) behavior changed dangerously. When I signal a lane change while a vehicle is in my blind spot, the mirror LEDs blink only 3 times and then return to a solid, dim state—even though the vehicle is still actively there. If you miss that brief 3-blink window, the dim LED falsely implies the lane is clear. This has caused 3 separate highway close calls (no crash occurred) where I almost merged into a vehicle because the warning period is inadequately short. This defect followed a catastrophic failure during the recall execution. I dropped the car at Audi Chantilly on Jan 13, 2026. When picked up on Jan 29, the lane-keep assist was broken (bouncing the vehicle left and right between lanes) and an SOS malfunction light was on. It took the dealer over 2 additional months to "fix" the corrupted camera/localization modules, finally returning the car in early April. While the major module errors are gone, the underlying side assist logic remains broken and hazardous. Because of a bitter, 3-month waiting experience where the vehicle was degraded, I do not trust Audi Chantilly to fix this. I need guidance on how to compel Audi to investigate this post-recall software defect and allow me to have it corrected at a different dealership.

Source: NHTSA complaint ODI #11743298 · view all complaints for this vehicle at nhtsa.gov