Most common 2021 Audi Q8 problems
Share of the 30 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Audi Q8 complaints by model year
Best Q8 years: 2022, 2021, 2023. Years to avoid: 2024. Compare all years →
2021 Audi Q8 recalls (7)
Back over prevention › Sensing system › Camera
Volkswagen Group of America, Inc. (Audi) is recalling certain 2019-2026 vehicles. Please see the recall report for a complete list of models. A software error may prevent the rearview camera image from displaying as intended.
Remedy: Dealers will update the software, free of charge. Owner notification letters were mailed January 14, 2026. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 90TV.
Electrical system › Software
Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 SQ8, A6 SEDAN, A7, A8, Q7, Q8, RS6 Avant, RS7, RSQ8, S6 SEDAN, S7, S8, A6 Allroad, and SQ7 vehicles. Due to a software error, the instrument panel display may fail.
Remedy: Dealers will update the instrument panel module software, free of charge. Owner notification letters were mailed April 24, 2025. Owners may contact Audi customer service at 1-800-253-2834.
Back over prevention › Display function
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2021 Audi A8, RS7, RS6 Avant, RS5 Sportback, RS5 Coupe, Q8, Q7, Q5 Sportback, S4 Sedan, Q5, A7, A6, A6 Allroad, A5 Sportback, A5 Coupe, A5 Cabrioleet, A4 Sedan, A4 Allroad, E-Tron Sportback Quattro, SQ7, S5 Cabriolet, E-Tron Quattro, SQ8, SQ5 Sportback, SQ5,…
Remedy: Dealers will update the infotainment unit software, free of charge. Owner notification letters were mailed October 25, 2022. Owners may contact Audi's customer service at 1-800-253-2834.
Fuel system, gasoline › Delivery › Fuel pump
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2019-2021 Audi Q8, and 2020-2021 Audi Q7 vehicles. A component inside the fuel pump may break, causing the fuel pump to fail.
Remedy: Dealers will replace the fuel pump, free of charge. Owner notification letters were mailed December 22, 2022. Owners may contact Audi's customer service at 1-800-253-2834. Audi's number for this recall is 20DR.
Tires
Volkswagen Group of America, Inc. (Audi) is recalling certain 2019-2021 Audi A5 Sportback, RS5 Coupe, RS5 Sportback, S5 Sportback, 2020-2021 A4 Allroad, A4 Sedan, A5 Cabriolet, A5 Coupe, A6 Allroad, A6 Sedan, A7, A8, Q5, S4 Sedan, S5 Coupe, S5 Cabriolet, S6 Sedan, S7, S8, SQ5, 2021 Q5 Sportback, Q7, Q8, RS6 Avant, RS7, RSQ8,…
Remedy: Dealers will inspect the rear axle, adjust the alignment as necessary, and replace any prematurely or unevenly worn tires, free of charge. Owner notification letters were mailed March 3, 2022.
Seat belts › Rear/other › Retractor
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2021 Volkswagen ID4, Audi A4 Allroad, A4 Sedan, A5 Cabriolet, A5 Coupe, A5 Sportback, A6 Allroad, A6 Sedan, A7, A8, E-Tron Quattro, E-Tron Sportback Quattro, Q3, Q5, Q5 Sportback, Q7, Q8, RS5 Sportback, RS5 Coupe, RS6 Avant, RS7, RSQ8, S4 Sedan, S5 Cabriolet,…
Remedy: Dealers will inspect, and replace as necessary, the middle-rear seat belt assemblies, free of charge. Owner notification letters were mailed August 27, 2021.
Show 1 more recall
Suspension › Rear › Axle › Non-powered axle assembly
Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Q7, Q8, Q5 Sportback, SQ5 Sportback, RS6 Avant, RS7, RS Q8, 2020-2021 Audi S6 sedan, Q5, A8, S8, A7, A6 Allroad, A5 Cabriolet, A4 sedan, A4 Allroad, SQ5, S7, A6 sedan, S5 coupe, S4 sedan, S5 Cabriolet, A5 coupe, 2019-2021 RS5 coupe, A5 Sportback, S5 Sportback,…
Remedy: Dealers will replace the lock nuts and, if necessary, the associated bolts, free of charge. Owner notification letters were mailed June 4, 2021. Owners may contact Audi customer service at 1-800-253-2834.
What 2021 Audi Q8 owners say
Electrical system
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 Audi Customer Care, on 10/12/2023, after the dealership provided no follow-up of repair of issue. …
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 reliability and pre-failure alert mechanisms in the Q8 platform.
Driver assistance
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.
The contact owns a 2021 Audi Q8. The contact stated that while driving at an undisclosed speed in the rain, the automatic braking system sensors engaged. There was an abnormal sputtering sound coming from the vehicle. The driver believed that the vehicle had struck an object. The vehicle was taken back to the local dealer, who was unable to repair the sensor, and the failure recurred. The manufacturer was contacted and filed a claim. The approximate failure mileage was 8,600.
Engine & cooling
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.
The engine (internal mechanical failure) malfunctioned. The vehicle developed a persistent ticking/knocking noise from the engine bay, and the authorized Audi dealer diagnosed the issue as requiring a full engine replacement. The vehicle is currently available for inspection upon request. A catastrophic engine failure presents a risk of sudden loss of power, stalling, or engine seizure, which could occur while driving at speed or in traffic. This creates a potential risk of loss of vehicle control, inability to accelerate, or being stranded in unsafe conditions, endangering both the driver and other motorists. The problem was confirmed by an authorized Audi dealership, which diagnosed the vehicle and stated that a complete engine replacement is required. The estimated repair cost provided by the dealer is approximately $26,000 (so far in parts only). …
2021 Audi Q8 engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 3.0L 6-cyl turbo hybrid | 8-speed automatic | AWD | 18 / 23 / 20 |
EPA ratings. Class: SUV.
Frequently asked questions
Is the 2021 Audi Q8 a good car?
Based on 30 owner complaints filed with NHTSA, the 2021 Q8 rates better than average: 48% fewer complaints than a typical year of the Q8 at the same age. It is one of the best Q8 years by this measure. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2021 Audi Q8?
The electrical system — 13 complaints, 43% of all complaints for this model year. Next are the driver assistance (8) and engine & cooling (6).
How many recalls does the 2021 Audi Q8 have?
There are 7 recalls for the 2021 Audi Q8, the most recent from December 19, 2025 (camera). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Audi Q8?
The best years by complaints, compared at the same age, are 2022, 2021 and 2023. Years to avoid or approach with caution: 2024. See the full Audi Q8 years comparison.
At what mileage do 2021 Audi Q8 problems happen?
The median mileage reported in complaints is about 9,000 miles; 80% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.