Rear Axle Lock Nut Failure

A recall addresses the potential for rear axle lock nuts to fail due to stress corrosion. This can lead to issues with tire wear and vehicle stability if not properly addressed. Estimated repair cost: $500 - $1,500.

Fuel Level Sender Inaccuracy

A recall addresses faulty fuel level senders that can provide inaccurate fuel readings, potentially leading to unexpected fuel depletion. Estimated repair cost: $400 - $800.

Gateway Control Module Shutdown

An electrical recall addresses potential shutdown of the gateway control module due to liquid ingress. A protective cover remedy is provided. Estimated repair cost: $500 - $1,200.

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2020 Audi S6 Maintenance guide

Name: Maintenance dataset for 2020 Audi S6
Creator: Carfocal

v1.0Updated Jun 2, 2026Ethan Miller4 Sources Analyzed4 Critical Recalls

MAINTENANCE SUMMARY

The 2020 Audi S6 presents a maintenance profile marked by a high volume of Technical Service Bulletins (TSBs) and critical recalls, suggesting potential for systemic issues despite a lack of consumer complaints. Owners should prioritize inspections related to the rear axle, airbags, and fuel systems.

View Critical Issue: Passenger Air Bag Malfunction

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Reliability Score

Est. Annual Maintenance Cost

$1,000 - $1,500

TSBs & Recalls

214 TSBs | 11 Recalls

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Key Takeaways

Prioritize inspections for rear axle integrity, passenger airbag system, and fuel level sender accuracy due to significant recalls.
The high TSB count suggests a complex vehicle requiring diligent adherence to maintenance schedules.

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Critical service intervals

Common failure analysis

Symptoms and prevention guidance