TSB: AUDI A4, A5, A6, A6 ALLROAD, A7, A7 E, A8 L E, ALLROAD, AUDI, Q3, Q5, Q5 PHEV, Q7, Q8, R8, RS 7, RS Q8, S4, S5, S6, S7, S8, SQ5, SQ7, SQ8, TT, TT RS, TTS (2021)

Bulletin 21AUUSMaint721 — July 21, 2021

Bulletin Details

Bulletin ID21AUUSMaint721
ManufacturerAUDI
ModelsA4, A5, A6, A6 ALLROAD, A7, A7 E, A8 L E, ALLROAD, AUDI, Q3, Q5, Q5 PHEV, Q7, Q8, R8, RS 7, RS Q8, S4, S5, S6, S7, S8, SQ5, SQ7, SQ8, TT, TT RS, TTS
Model Years2021
Date IssuedJuly 21, 2021
Date Added to NHTSAAugust 4, 2021
ComponentEQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
Vehicles Affected28 combinations

What is a TSB?

A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls — they serve as repair guidance for common problems.

If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.

Summary

Additional Maintenance Items: Rear axle, quattro Sport - Change ATF and differential oil. CHANGED "Change Fluids". Every 60,000 miles - Only: RS 5, S6, S7, SQ7, SQ8, RS Q8. Oil Capacity Chart: Changed Q7 45 TFSI 2.0L oil type to "508".

Affected Vehicles

MakeModelYearComponent
AUDI A4 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
AUDI A5 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
AUDI A6 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
AUDI A6 ALLROAD 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
AUDI A7 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
AUDI A7 E 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
AUDI A8 L E 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
AUDI ALLROAD 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
AUDI Q3 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
AUDI Q5 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
AUDI Q5 PHEV 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
AUDI Q7 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
AUDI Q8 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
AUDI R8 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
AUDI RS 7 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
AUDI RS Q8 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
AUDI S4 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
AUDI S5 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
AUDI S6 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
AUDI S7 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
AUDI S8 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
AUDI SQ5 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
AUDI SQ7 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
AUDI SQ8 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
AUDI TT 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
AUDI TT RS 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
AUDI TTS 2021 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
AUDI AUDI 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

Related AUDI Recalls

CampaignModelYearComponentSummary
Q8 2019 LANE DEPARTURE:SOFTWARE Volkswagen Group of America, Inc. (Audi) is recalling certain 2019 Audi Q8, A...
A7 2019 LANE DEPARTURE:SOFTWARE Volkswagen Group of America, Inc. (Audi) is recalling certain 2019 Audi Q8, A...
A6 2019 LANE DEPARTURE:SOFTWARE Volkswagen Group of America, Inc. (Audi) is recalling certain 2019 Audi Q8, A...
A6 2019 LANE DEPARTURE:SOFTWARE Volkswagen Group of America, Inc. (Audi) is recalling certain 2019 Audi Q8, A...
A7 2019 LANE DEPARTURE:SOFTWARE Volkswagen Group of America, Inc. (Audi) is recalling certain 2019 Audi Q8, A...

What Should You Do?

If your vehicle is affected by this TSB, contact your authorized AUDI dealer. Bring this bulletin ID (21AUUSMaint721) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage — manufacturers sometimes cover TSB-related repairs beyond the warranty period.

Frequently Asked Questions

A recall is a mandatory safety fix — the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.

If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.

Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.

This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.