Audi · Known Issues

2021 Audi S7 Problems: 6 Known Issues

2021 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated July 2026

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021 Audi S7 has 6 documented known issues, with 6 rated critical. The most serious are Rear Seat-Belt Retractor Can Release a Child Restraint Early (Recall 21V606 / 69CS), Instrument Panel May Fail to Display Critical Safety Information (Recall 25V201 / 90VC), Rear-Seat Liquid Spill Can Shut Down Gateway Module (Recall 22V861 / 90V2), Rear-Axle Lock Nut and Alignment Recall Follow-Up (21V295 / 22V034), Rearview Camera Image May Not Display (Recall 25V900 / 90TV) and Incorrect Brake-Fluid Reservoir Cap Label (Recall 23V601 / 47T9). DIY maintenance guides at au7o.io.

Frequently Asked Questions

What are the most common Audi S7 problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021 Audi S7 has 6 documented issues. The most frequently reported are: Rear Seat-Belt Retractor Can Release a Child Restraint Early (Recall 21V606 / 69CS), Instrument Panel May Fail to Display Critical Safety Information (Recall 25V201 / 90VC), Rear-Seat Liquid Spill Can Shut Down Gateway Module (Recall 22V861 / 90V2). Of these, 6 are rated critical and should be addressed promptly.

Is the Audi S7 reliable?

The 2021 Audi S7 has 6 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 6 issues are rated critical: Rear Seat-Belt Retractor Can Release a Child Restraint Early (Recall 21V606 / 69CS) and Instrument Panel May Fail to Display Critical Safety Information (Recall 25V201 / 90VC) and Rear-Seat Liquid Spill Can Shut Down Gateway Module (Recall 22V861 / 90V2) and Rear-Axle Lock Nut and Alignment Recall Follow-Up (21V295 / 22V034) and Rearview Camera Image May Not Display (Recall 25V900 / 90TV) and Incorrect Brake-Fluid Reservoir Cap Label (Recall 23V601 / 47T9). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

What is the 2021 Audi S7 Rear Seat-Belt Retractor Can Release a Child Restraint Early (Recall 21V606 / 69CS)?

Certain 2021 S7 rear automatic-locking retractors can deactivate early, preventing a child restraint from remaining secured as required by FMVSS 208. Severity: high.

What is the 2021 Audi S7 Instrument Panel May Fail to Display Critical Safety Information (Recall 25V201 / 90VC)?

Certain 2021 S7 instrument-panel modules can fail because of a software error, hiding the speedometer or safety warning indicators. Severity: high.

What is the 2020-2022 Audi S7 Rear-Seat Liquid Spill Can Shut Down Gateway Module (Recall 22V861 / 90V2)?

On certain 2020-2022 S7 vehicles, liquid spilled in the rear seat can reach the gateway control module, shut it down, and suddenly reduce engine power. Severity: high.

What is the 2020-2021 Audi S7 Rear-Axle Lock Nut and Alignment Recall Follow-Up (21V295 / 22V034)?

Certain 2020-2021 S7 rear trailing-arm lock nuts can fracture from stress corrosion and misalign the rear axle. A follow-up recall covers vehicles whose alignment and tire condition may not have been checked after the first repair. Severity: high.

What is the 2020-2024 Audi S7 Rearview Camera Image May Not Display (Recall 25V900 / 90TV)?

Within the official 25V900 Part 573 model scope, certain 2020-2024 S7 vehicles can fail to display the rearview-camera image as intended because of a software error. Severity: high.

What is the 2021 Audi S7 Incorrect Brake-Fluid Reservoir Cap Label (Recall 23V601 / 47T9)?

Certain 2021 S7 vehicles may have an incorrectly labeled brake-fluid reservoir cap, which can lead to use of the wrong fluid and reduced braking ability. Severity: high.

2021 Audi S7 Problems: 6 Known Issues

All 6 Known Issues

2021 Audi S7: Rear Seat-Belt Retractor Can Release a Child Restraint Early (Recall 21V606 / 69CS)#

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2020-2024 Audi S7: Rearview Camera Image May Not Display (Recall 25V900 / 90TV)#

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2021 Audi S7: Instrument Panel May Fail to Display Critical Safety Information (Recall 25V201 / 90VC)#

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2020-2022 Audi S7: Rear-Seat Liquid Spill Can Shut Down Gateway Module (Recall 22V861 / 90V2)#

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2020-2021 Audi S7: Rear-Axle Lock Nut and Alignment Recall Follow-Up (21V295 / 22V034)#

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2021 Audi S7: Incorrect Brake-Fluid Reservoir Cap Label (Recall 23V601 / 47T9)#

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Other Audi Models

Frequently Asked Questions

What are the most common Audi S7 problems?

Is the Audi S7 reliable?

What is the 2021 Audi S7 Rear Seat-Belt Retractor Can Release a Child Restraint Early (Recall 21V606 / 69CS)?

What is the 2021 Audi S7 Instrument Panel May Fail to Display Critical Safety Information (Recall 25V201 / 90VC)?

What is the 2020-2022 Audi S7 Rear-Seat Liquid Spill Can Shut Down Gateway Module (Recall 22V861 / 90V2)?

What is the 2020-2021 Audi S7 Rear-Axle Lock Nut and Alignment Recall Follow-Up (21V295 / 22V034)?

What is the 2020-2024 Audi S7 Rearview Camera Image May Not Display (Recall 25V900 / 90TV)?

What is the 2021 Audi S7 Incorrect Brake-Fluid Reservoir Cap Label (Recall 23V601 / 47T9)?