Seat Belt Malfunctions

Recalls indicate rear seat belt retractors failing to lock properly. This is a critical safety concern that can compromise occupant restraint. Estimated repair cost: $150 - $500.

Recalls have cited incorrect passenger airbag score lines, posing a direct safety risk. Malfunctions can lead to improper deployment or non-deployment. Estimated repair cost: $500 - $1500.

Suspension and Alignment Issues

Recalls related to axle lock nut failure and subsequent alignment issues suggest potential for premature tire wear and compromised handling. This can cascade into other suspension component wear. Estimated repair cost: $300 - $1200.

Electrical System Glitches

Software issues affecting instrument panel displays and gateway control modules can lead to intermittent failures of vehicle functions and information systems. Estimated repair cost: $200 - $1000.

CARFOCALvehicle research

2021 Audi S7 Maintenance guide

Name: Maintenance dataset for 2021 Audi S7
Creator: Carfocal

v1.0Updated Jun 2, 2026Ryan Davis4 Sources Analyzed5 Critical Recalls

MAINTENANCE SUMMARY

The 2021 Audi S7, with a 'Below Average' reliability verdict, presents potential ownership concerns primarily stemming from a high number of safety-critical recalls, particularly affecting seat belts and airbags, and noted suspension and electrical system issues. Proactive verification of all recall completions, especially for seat belts (21V606000), airbags (21V159000), and braking systems (23V601000), is paramount.

View Critical Issue: Airbag System Faults

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Reliability Score

Est. Annual Maintenance Cost

$1,000 - $1,500

TSBs & Recalls

247 TSBs | 57 Recalls

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Key Takeaways

Reliability is rated 'Below Average', with significant recall activity.
Prioritize verification of all safety recalls, especially for seat belts and airbags.

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Critical service intervals

Common failure analysis

Symptoms and prevention guidance