2021 Audi Q8

The 3.0L TFSI V6 (EA839) in the Q8 can develop timing chain noise, particularly a rattling or whining sound from the front of the engine during cold starts. The chain tensioner may not maintain adequate tension, allowing the chain to slap against the guides. While Audi has improved the tensioner design from earlier generations, the issue still appears in some 2022 production Q8 models.

Dealer inspects the timing chain system for excessive play and wear. If the tensioner is out of specification, the timing chain, tensioner, and guides are replaced. Updated tensioner with improved ratchet mechanism (revised part number) should be used. Reference Audi TSB 2043698/3 for timing chain diagnosis.

The Q8's standard adaptive air suspension can develop air leaks at the air spring bellow crimps, valve block, and airline connections. The vehicle sags on one or more corners after sitting overnight, the compressor runs for extended periods, and 'Suspension Fault — Vehicle Too Low' messages appear. The compressor can overheat and fail from continuous operation trying to compensate for leaks.

Dealer performs a leak-down test of the entire air suspension system. Leaking air springs, air lines, or valve block components are replaced. The compressor should be tested for output pressure and replaced if weak. Reference Audi TSB 2040162/4 for air suspension leak diagnosis.

The Q8 features a unique dual-touchscreen MMI system (10.1-inch upper and 8.6-inch lower). Either or both screens can develop touch responsiveness issues, including dead zones, phantom touches (ghost inputs), and screen blackouts. The lower climate control screen is particularly prone to failure as it receives more finger presses and is exposed to drink spills. Haptic feedback motors can also fail.

Dealer replaces the affected display module. The MIB3 system requires a full software update after hardware replacement. Audi has released updated display modules with improved touch controllers. Screen protectors can help prevent future damage to the lower display.

The Q8's 48V mild hybrid system uses a belt-driven alternator starter (BAS) for start-stop functionality and mild hybrid boost. The BAS unit can fail, causing rough engine starts, inability to utilize start-stop, loss of energy recuperation, and electrical system warnings. The belt connecting the BAS to the engine can also stretch or slip, producing a squealing noise on startup.

Dealer replaces the BAS unit and associated belt. The 48V lithium-ion battery should be tested for proper voltage and capacity. The engine control module software may need updating to re-enable mild hybrid functions. Reference Audi TSB 2049387/1 for 48V system diagnosis.

Q8 owners report excessive wind noise from the panoramic sunroof area at highway speeds, even when the sunroof is closed. A creaking or popping noise from the sunroof frame is common during temperature changes and when driving over uneven roads. The large glass panel flexes slightly, and the seals around the perimeter can develop gaps due to thermal expansion and contraction.

Dealer inspects and replaces the sunroof perimeter seals. The sunroof frame may need adjustment and retorquing. Additional wind deflector adjustment can reduce aerodynamic noise. Reference Audi TSB 2047219/1 for panoramic sunroof noise diagnosis. Some owners apply aftermarket wind noise strips for additional sealing.

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. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."

A rearview image that does not display reduces the driver's view behind the vehicle, increasing the risk of a crash.

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. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on December 23, 2025.

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.

An instrument panel display that fails to show critical safety information, such as the speedometer or warning lights, increases the risk of a crash.

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. Audi's number for this recall is 90VC.

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, S8, S7, S6 Sedan, S5 Sportback, S5 Coupe, 2022 E-Tron GT, and 2021-2022 RSQ8 vehicles. Due to a software issue, a blank or black screen may be displayed instead of the rearview camera image when the vehicle is placed in reverse gear. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."

A blank rearview camera display can reduce the driver's rear visibility, increasing the risk of a crash.

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. Volkswagen's number for this recall is 91DZ.

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.

Fuel pump failure can cause an engine stall, increasing the risk of a crash.

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.

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, SQ5 Sportback, SQ7, and SQ8 vehicles. The rear axle alignment may not have been inspected after the repairs for Recall 21V-295 (42L1) were performed.

Rear axle misalignment may cause premature or uneven tire wear, increasing the risk of a crash.

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. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 42L5.

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, S5 Coupe, S5 Sportback, S6 Sedan, S7, S8, SQ5, SQ5 Sportback, SQ7, SQ8, and 2021-2022 S3 Sedan vehicles. The rear seat belt automatic locking retractors may deactivate early, which can prevent the child restraint system from securing properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."

An unsecured child restraint system can increase the risk of injury during a crash.

Dealers will inspect, and replace as necessary, the middle-rear seat belt assemblies, free of charge. Owner notification letters were mailed August 27, 2021. Owners may contact Volkswagen customer service at 1-800-893-5298 and Audi customer service at 1-800-253-2834. Volkswagen's numbers for this recall are 69CR (VW) and 69CS (Audi).

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, RS5 Sportback vehicles. The lock nut on the trailing arm of the rear axle may break due to stress corrosion.

A broken lock nut may misalign the rear axle, causing a loss of control and increasing the risk of a crash.

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. Audi's number for this recall is 42L1.