2021 Audi Q8 owner complaints

The alternator was having malfunction in the middle of driving. At first, the system warned and showed" Electric system malfunction" with yellow lights on. As soon as I saw this warning, I drove to the nearest dealership which is about 15 mins drive. Two minutes before my wife and I arrived at the dealership, the car have many red lights warning turned on one by one. The system asked me to stop safely. And the entire system shut off by itself after we arrived at dealership. Luckily, we were able to drove the car to the service department. I can not image what could have happened it the car broke down on the highway. The engine could be completely shuts down. And there is no even no way to turn on the engine and turn on emergency lights.

While driving the 2021 Audi Q8, the warning lights for the Electrical system malfunction & Automatic vehicle starting system: malfunction appeared on the dashboard. My safety and others safety were at risk as this occurred while driving. In reviewing other concerns or complaints this is a reported issue to the Audi dealership. Audi Grapevine Service was immediately notified. Service informed me to do not drive the vehicle and to have it towed in immediately. Audi Grapevine Service also informed me they have 17 other vehicles with the same issue. Vehicle is currently at dealership awaiting diagnosis. There is another reported issue, of knocking noise coming from the vehicle. This was reported to the dealership on 9/25/2023, 26 days after purchasing the vehicle. This was also reported to Au

Vehicle reported an electrical failure and to stop vehicle. Vehicle towed to dealership. Service reported Alternator failure and a 6-8 week repair time as part is on back order.

When driving, my car had several red and yellow warning lights that came one - one for electrical system, the other for Vehicle starting malfunction and another was a battery sign. The vehicle also had delays starting. I was fearful the car would stop while driving (hopefully not on a highway or busy road) or I would be stranded somewhere because the vehicle would not start

Purchased my car used from Volkswagen of west islip. After a few months I was doing regular maintenance when I noticed that the brake sensor was missing and the harness was tampered with. The brake wear sensor was removed from the front driver side and a small price of wire/ conductive material was inserted into the harness to trick the cars system into on seeing the sensor in a safe and working manner. This would prevent the cars system from alerting me when the brakes need to be replaced which could have resulted in resulted in a serious accident due to brake failure. I feel like this was either deliberately done by the dealer before selling the car to save a few dollars or was overlooked during what should have been a basic safety inspection before listing the vehicle for sale. After re

On April 2, 2025, while driving on Interstate 25, my 2021 Audi Q8 Premium Plus experienced a catastrophic engine and electrical failure. This included the generator system failing, which resulted in a complete loss of power, disabling all active safety systems (including electronic stability control, braking assist, and lane monitoring), as well as basic driving capabilities such as acceleration and steering responsiveness. The incident occurred without prior warning or diagnostic alerts, and the vehicle became immobile on the highway. The situation posed a serious safety hazard to both myself and surrounding drivers. The vehicle had an unresolved generator recall, which Audi later confirmed and completed after the incident. This event raises significant concerns regarding system reliabi

I wish to report a critical safety issue with our Audi Q8, which experienced a complete electrical failure while traveling at 65 mph on the freeway on [XXX]. The warning indicators transitioned from yellow to red before the vehicle lost all functionality, including turn signals and emergency blinkers, posing a severe risk to my family and other motorists. We managed to coast to the roadside without incident, but the potential for a catastrophic outcome was alarmingly high. Audi has identified the problem as an alternator defect, which is apparently a known issue covered under an extended warranty for Audi Q8 2019-2022 for 7 years unlimited miles. However, the policy to address this defect only upon failure is unacceptable and dangerous. This malfunction could reoccur at any time, signific

The contact owns a 2021 Audi Q8. The contact received notification of the NHTSA Campaign Number: 22V516000 (Fuel System, Gasoline) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not notified of the issue. The contact had not experienced a failure. Parts distribution disconnect.

The contact owns a 2021 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 local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

The contact owns a 2021 Audi Q8. The contact stated that while driving at various speeds, the instrument panel failed to operate. The contact stated that while driving 70 MPH, the failure recurred. The contact received notification of NHTSA Campaign Number: 25V201000 (Electrical System), and the vehicle was taken to the dealer, where the recall repair was performed; however, the failure recurred the same day while driving from the dealer. Additionally, the contact stated that the vehicle stalled while driving at various speeds. The vehicle was taken to the dealer, where it was diagnosed that the fuel pump had failed, but the vehicle was not repaired due to the cost. The contact stated that while driving 50-55 MPH, the messages "Loss of Power", "Reduced RPMs to 3,000", and other unknown me

The contact owns a 2021 Audi Q8. The contact stated that the vehicle was taken to the dealer for scheduled maintenance and she was notified of the NHTSA Campaign Number: 22V742000 (Back Over Prevention). The contact stated that she was informed that the recall was repaired however, after the vehicle was retrieved, two hours later while in reverse, the rear-view camera failed to operate. The contact then stated that the vehicle was taken back to the dealer where the failure could not be duplicated. The vehicle was not repaired. The manufacturer was notified of the failure; however, the contact had not yet received a response. The failure mileage was approximately 17,000.

Subject: Spontaneous Sunroof Shattering – 2021 Audi Q8 Summary: On 8/5/2025, while driving my 2021 Audi Q8 under normal conditions, the sunroof suddenly shattered without warning. There was a loud popping sound, followed by glass breaking and falling onto the closed sunroof shade. There were no visible signs of impact from external objects, and weather conditions were normal at the time of the incident. The vehicle was not involved in a collision and was being operated safely. This incident created a serious safety hazard, as the loud popping sound once the sunroof ruptured could have cause me to get into an accident. I am also lucky that the sun roof shade was closed or the pieces could have struck me inside my vehicle. I will be contacting insurance and Audi dealership regarding the d

When my car is placed in reverse, the parking assist system is activated. The cameras are supposed to turn on to give me visibility and warnings if cars or people are approaching. Instead, the screen will go out and start blinking with a white screen. This results in an inability to safely maneuver and no camera visibility. This happens often and have been able to record 2 instances on my phone. I have reported the issue to the dealership twice and because it cannot be replicated, the issue has not been resolved. With each visit, video has been provided to service department.

The contact owns a 2021 Audi Q8. The contact stated while driving 70 MPH, the vehicle shutoff as the electrical problem, see local dealer warning message appeared on the instrument panel. The contact pulled off to the side of the highway and had the vehicle towed to a local dealer. The vehicle remained in the possession of the dealer and had yet to be diagnosed. The manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 3,500.

I was driving my car would not accelerate on the highway and it almost caused me to get into an accident with my niece in the car. When I took the car to Audi this is what I was told my the service adviser. “Good afternoon. The technician has been looking into the vehicle and has found the cause of the issue. He has found the coolant water pump has failed internally causing coolant to leak internally into the vacuum system. This is causing the vacuum to be blocked for the turbo and thus causing the sluggish feeling when accelerating. In order to fix, the water pump and all compromised vacuum system components need to be replaced. It is a rather extensive job unfortunately.” My car only has a little over 45 thousand miles. Audi should be responsible to fix this problem because they sold thi

The vehicle recently started to behave uncharacteristically when navigating around the curbs and changing lanes, it feels like you have hit a patch of black ice or an oil slick which I attributed to needing new tires. I purchased new tires according to the vehicle Audi manufacturer specification and had an alignment done on 2/14/2024 as is required for all-wheel drive vehicles. The situation was explained to the Audi South Atlanta Service Desk on 2/14/2024 and was logged as "Customer states that the vehicle stutters/shakes and tires seem to lower when changing lanes & going around light curves. The Customer requested that the lane departure system and other related components be checked to confirm if they are operating as designed." Dealership feedback: "Test drove: vehicle driven 2 mile

Complete loss of electrical power while driving due to faulty alternator at only 35K miles. This resulted in total loss of steering, suspension failure, and any other electrical systems in the car. Making the car almost impossible to control specially for a new driver. Apparently the issue is widespread with any Audi car or SUV equipped with a V6 3 liter engine. The repair requires the replacement of the alternator and the 12v (an in some cases 48v) battery. The issue happens suddenly with no prior warning and completely disables the vehicle while driving. To the best of my knowledge Audi replaces the alternator with the same faulty design, which may lead to the issue to appear again at a later time.

Belt Starter Generator failure rendered car undrivable -- power steering failed while in motion. Issue is subject to Class Action Settlement in USDistrict Court, Case # 3:23-cv-02291-RK-RLS. But this should have been a recall because of danger of Injury or Death. A recall would provide notice that the notice of settlement failed to provide. This failure happened to me on March 29, 2026. Dealer is not able to do the repair work in a timely manner.

Tl* the contact owns a 2021 Audi q8. The contact stated while stopped at a red light, he leaned forward and the front driver's seat belt shoulder harness tightened which caused him shortness of breath and chest pain. Medical treatment was later received for his injuries. Audi rancho mirage (71265 ca-111, rancho mirage, ca 92270) was made aware of the failure and informed the contact that the seat belt shoulder harness tightened as a part of the safety feature of the vehicle. The dealer stated that they would verify whether or not the safety feature could be disabled. The vehicle was not diagnosed nor repaired. The manufacturer was not made aware of the failure. The failure mileage was 1,500.