Seat Belt Retractor Issues

A high volume of recalls addresses rear seat belt retractors, particularly concerning child restraint system compatibility. While not a direct mechanical failure for the driver, it impacts occupant safety and requires verification. Estimated repair cost: $200 - $500.

Electrical System Issues (Gateway Module, Instrument Panel)

Recalls and TSBs point to potential issues with the electrical system, including gateway control module shutdown due to liquid ingress and instrument panel display failures. These can affect vehicle diagnostics and driver information. Estimated repair cost: $500 - $1,500.

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2021 Audi RS 6 Avant Maintenance guide

Name: Maintenance dataset for 2021 Audi RS 6 Avant
Creator: Carfocal

v1.0Updated Jun 2, 2026Ryan Davis4 Sources Analyzed7 Critical Recalls

MAINTENANCE SUMMARY

The 2021 Audi RS 6 Avant demands meticulous attention, particularly concerning its potent 4.0L V8 engine and complex all-wheel-drive system. While consumer complaints are zero, a high number of recalls (60) and TSBs (264) indicate potential for issues, especially with safety-critical systems like airbags and seat belts, and electrical components.

View Critical Issue: Engine Recalls (Cracked Cylinder Bore)

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Reliability Score

Est. Annual Maintenance Cost

$1,000 - $1,800

TSBs & Recalls

264 TSBs | 60 Recalls

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Key Takeaways

Proactive attention to the 4.0L V8 engine is paramount, especially regarding recall campaigns for potential cylinder bore issues.
While consumer complaints are absent, a high volume of recalls and TSBs suggests a need for diligent service and inspection.

3 more takeaways unlock below

Critical service intervals

Common failure analysis

Symptoms and prevention guidance