Air Bag System Malfunction (Occupant Classification Sensor)

A recall addresses potential issues with the Passenger Occupant Detection System (PODS) due to wear on the seat-sensing mat. This can lead to incorrect air bag deployment or non-deployment. Estimated repair cost: $300 - $700.

The 4.0L V8 engine can develop oil leaks, often from valve cover gaskets or oil cooler seals, particularly as mileage increases. These leaks can lead to oil consumption and potential damage if left unaddressed. Estimated repair cost: $500 - $1500.

Cooling System Issues

Over time, components like the water pump or thermostat can fail, leading to overheating. The complexity of the V8 engine's cooling system means these issues require prompt attention. Estimated repair cost: $600 - $1200.

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2018 Audi S6 Maintenance guide

Name: Maintenance dataset for 2018 Audi S6
Creator: Carfocal

v1.0Updated Jun 2, 2026Daniel Wilson4 Sources Analyzed1 Critical Recalls

MAINTENANCE SUMMARY

The 2018 Audi S6 presents an average reliability profile, marked by a significant number of Technical Service Bulletins (TSBs) suggesting system complexity. Owners should prioritize proactive checks of the occupant classification system, a component subject to a critical recall, and be aware of potential wear-related issues.

View Critical Issue: Oil Leaks

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Reliability Score

Est. Annual Maintenance Cost

$1,000 - $1,500

TSBs & Recalls

179 TSBs | 1 Recalls

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Key Takeaways

Average reliability rating necessitates attentive maintenance.
High TSB count indicates system complexity; proactive checks are advised.

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Critical service intervals

Common failure analysis

Symptoms and prevention guidance

2018 Audi S6 Maintenance guide

v1.0Updated Jun 2, 2026Daniel Wilson4 Sources Analyzed1 Critical Recalls

MAINTENANCE SUMMARY

View Critical Issue: Oil Leaks

Subscribe to Recall Alerts Subscribe to Recall Alerts

Reliability Score

Est. Annual Maintenance Cost

$1,000 - $1,500

TSBs & Recalls

179 TSBs | 1 Recalls

CarFocal account required

Unlock the Full 2018 Audi S6 Maintenance Guide

Create a free account to reveal the full service schedule, repair costs, and deeper diagnostic data.

Key Takeaways

Average reliability rating necessitates attentive maintenance.
High TSB count indicates system complexity; proactive checks are advised.

3 more takeaways unlock below

Critical service intervals

Common failure analysis

Symptoms and prevention guidance