Common leak points include the valve cover gaskets and oil filter housing. These can lead to oil consumption and potential engine damage if not addressed promptly. Estimated repair cost: $300 - $800.

Leaks can develop from the thermostat housing, water pump, or coolant expansion tank. These issues can lead to overheating and severe engine damage. Estimated repair cost: $400 - $1200.

2019 Audi S4 Maintenance guide

Name: Maintenance dataset for 2019 Audi S4
Creator: Carfocal

v1.0Updated Jun 2, 2026Ryan Davis4 Sources Analyzed1 Critical Recalls

MAINTENANCE SUMMARY

The 2019 Audi S4 requires diligent maintenance, with a notable recall impacting the passenger airbag system due to a faulty seat heater cable. A high TSB count suggests proactive attention to potential electrical and powertrain issues is wise.

View Critical Issue: Passenger Occupant Detection System (PODS) Malfunction

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Reliability Score

Est. Annual Maintenance Cost

$500 - $800

TSBs & Recalls

201 TSBs | 2 Recalls

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Key Takeaways

Prioritize addressing the passenger airbag system recall (21V874000).
A high TSB count (201) indicates a need for proactive inspection of various systems.

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Critical service intervals

Common failure analysis

Symptoms and prevention guidance