2020 Audi Q8 Problems

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.

Engine failed at 78,990 from an manufacturer defect that Audi knows about for the last couple of years. Audi extended warranty due to the failure to 8 years or 80K miles. The engines can lock up due to a piston failure in the scored cylinder walls causing a crash. Oil consumption is very high causing vehicle to burn oil and not pass smoke test. Please investigate these engine failure and manufacturer defects with this engine in multiple vehicles 3.0L turbo gas engine thanks

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.

I am reporting a safety defect issue that I believe is an alternator recall waiting to happen. While driving with my children, my Audi suffered a sudden, complete electrical failure caused by what I was later told is an alternator defect. The vehicle shut off without warning. At that moment, I lost braking power, the ability to shift into neutral, and full control of the vehicle’s speed. Because of this defect, I was unable to slow or stop the car safely putting myself, my passengers, and others on the road at serious risk. I request that NHTSA investigate whether this alternator issue constitutes a recall-worthy safety defect under the Federal Motor Vehicle Safety Standards.

The contact owns a 2020 Audi Q8. The contact received notification of NHTSA Campaign Number: 22V516000 (Fuel System, Gasoline) however, the part to do the recall repair was not yet available. The contact stated that an unknown dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect. The contact stated that the soonest repair appointment available is in October 2023.

Recall has been open since the middle of last year. Defective part represents potential fire risk Dealer says they dont know when they will have the part to repair my car Manufacturers says no parts are available yet and they dont know when they will have them. This is not credible or reasonable. This vehicle is still in production and they are prioritizing sale of new vehicles over repair of existing safety issues

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.

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.

I am reporting a safety defect issue that I believe is an alternator recall waiting to happen. While driving with my children, my Audi suffered a sudden, complete electrical failure caused by what I was later told is an alternator defect. The vehicle shut off without warning. At that moment, I lost braking power, the ability to shift into neutral, and full control of the vehicle’s speed. Because of this defect, I was unable to slow or stop the car safely putting myself, my passengers, and others on the road at serious risk. I request that NHTSA investigate whether this alternator issue constitutes a recall-worthy safety defect under the Federal Motor Vehicle Safety Standards.

THE VEHICLE'S START STOP SYSTEM OR TRANSMISSION SEEMS TO BE SLUGGISH LEADING TO VARIOUS BOUTS OF HESITATION ESPECIALLY WHEN SLOWING DOWN AND COASTING AT A SLOW SPEED AND THEN TRYING TO ACCELERATE. THIS WAS ESPECIALLY NOTICEABLE WHEN ATTEMPTING TO TURN LEFT FROM A LEFT TURN LANE AND HAVING THE CAR HESITATE FOR WHAT FELT LIKE A SECOND OR TWO WHICH COULD LEAD TO A CRASH IF SOMEONE WAS COMING IN THE OTHER DIRECTION.

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.

Many times my 2020 SQ8 instrument pannel lights up , even just pulling out of my garage , and indicates that my RIGHT Front Tire is low/ or flat ( low tire warning ) and to check Right passenger side for damage .??? . ( each time (10-20 times ) this has happened and i discover NO Flat tire or Damage ). On June 16 , 2020 while driving in traffic the instrument pannel lights up and shows the same message as above mentioned . About 30 seconds later, the Audi pulls hard to the Right jumps the curb and crashes the car . The Driver is Emotionally hurt & upset but is able to call Triple A as the entire right front of the Audi is completely damage with a turbo charger laying on the ground and part of the front missing or smashed --!!! The car looks Totaled !! Major damage to the car . It Still in AutomotiveREPAIR shop getting repaired after being there for over 19 weeks so far . Got an initial check for over $ 26k from my insurance company but now am told the Frame Could be bent as the pannels do not line up correctly . What an absolute Mess - !! This terrible acident was NOT my fault !! The Audi served to the Right- without me even turning the wheel. ( I should have been Killed). The Audi SQ8 was towed to the Repair Shop where I reported the malfunction of the sterring wheel. The repair Manager said " that I would have to call Audi and that he could do nothing about the problem ." I called Audi the Next Day and they said they could Not do anything about it also . So i goggled the Audi website and found this - --" NHTSA Warns you could lose Steering control in some more Audi's SQ 8 SUV's which has prompted Audi to recall certain 2020 SQ 8- as in some cases could cause a crash. !! The bolt connecting the steering shaft could losen . The total units affected to be around 228 according to NHTSA. Recall of SQ 8's is expected to begin arround May 15 , 2020. Question call 800-253-2834 or NHTSA Vehicle Safety Hotline at 1 - 88& 327 4236.

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.

I am reporting a safety defect issue that I believe is an alternator recall waiting to happen. While driving with my children, my Audi suffered a sudden, complete electrical failure caused by what I was later told is an alternator defect. The vehicle shut off without warning. At that moment, I lost braking power, the ability to shift into neutral, and full control of the vehicle’s speed. Because of this defect, I was unable to slow or stop the car safely putting myself, my passengers, and others on the road at serious risk. I request that NHTSA investigate whether this alternator issue constitutes a recall-worthy safety defect under the Federal Motor Vehicle Safety Standards.

- Problem: Locking system malfunctions leaving at least one door in an unlocked state. The door(s) can be opened while the ignition is on and the car is not in park or when the car is parked with the ignition off. - Safety risks: Carjacking, bodily harm, death, theft of vehicle or its contents. - Problem has been confirmed by a dealer and manufacturer. - Vehicle has been serviced multiple times between July 2021 and July 2022 in an attempt to fix the problem. - Warning lamps, messages or other symptoms of the problem appeared at time of failure. No warning lamps, etc. PRIOR to the failure.