Rear Axle Lock Nut Failure

A recall addressed potential stress corrosion of rear axle lock nuts, which could lead to breakage and affect vehicle stability. While a recall remedy exists, early inspection and replacement of affected components are advised. Estimated repair cost: $500 - $1,500.

Fuel Level Sender Malfunction

A recall was issued for a faulty fuel level sender that could lead to inaccurate fuel readings. This can result in unexpected fuel depletion and engine stalling, posing a safety risk. Estimated repair cost: $400 - $800.

A critical recall addressed a defect in the passenger airbag's score line, potentially impairing its function during deployment. This requires inspection and repair by an authorized dealer. Estimated repair cost: $500 - $1,000.

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2020 Audi S7 Maintenance guide

Name: Maintenance dataset for 2020 Audi S7
Creator: Carfocal

v1.0Updated Jun 2, 2026Daniel Wilson4 Sources Analyzed4 Critical Recalls

MAINTENANCE SUMMARY

The 2020 Audi S7 presents an average reliability picture, underscored by a high TSB count and several critical recalls concerning its rear axle, airbags, and fuel system. Potential owners should prioritize inspections and maintenance related to these systems.

View Critical Issue: Gateway Control Module Shutdown

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Reliability Score

Est. Annual Maintenance Cost

$1,000 - $1,500

TSBs & Recalls

209 TSBs | 11 Recalls

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Key Takeaways

The 2020 Audi S7 has an 'Average' reliability rating, influenced by numerous Technical Service Bulletins and critical recalls.
Key areas requiring attention include the rear axle, airbag system, and fuel level sender.

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Critical service intervals

Common failure analysis

Symptoms and prevention guidance