Audi · Known Issues

2021 Audi S7 Problems: 8 Known Issues

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

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021 Audi S7 has 8 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). Across all issues with published estimates, repair costs range from $250 to $1,800. 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 8 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 8 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.

How much does it cost to fix common Audi S7 problems?

Repair costs for known Audi S7 issues range from $250 to $1,800, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

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.

What is the 2013-2022 Audi S7 Premature Front Brake Rotor Warping and Pad Wear?

Owners of the heavy A7/S7 frequently report premature front brake wear and rotor warping, with some replacing front rotors multiple times in well under 50k miles. The OEM rotors are relatively soft and reach minimum thickness after roughly one pad set, and uneven pad engagement l… Repairs typically run $600-$1,800. Severity: medium.

What is the 2013-2022 Audi S7 Power Liftgate Motor and Gas Strut Failure (Sportback Tailgate)?

The S7's large Sportback hatch uses a power liftgate driven by spindle/lift motors and supported by gas struts. Over time the gas struts lose pressure and the motors wear, so the hatch opens slowly or struggles, opens a few inches and stops, won't stay up (slowly drifting closed… Repairs typically run $250-$1,200. Severity: low.

In This Article

All 8 Known Issues

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

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

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

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

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

2013-2022 Audi S7: Premature Front Brake Rotor Warping and Pad Wear#

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

2013-2022 Audi S7: Power Liftgate Motor and Gas Strut Failure (Sportback Tailgate)#

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