A recall addressed fuel rail leaks due to potential material defects. While the recall remedy should have been applied, vigilance for any fuel odors or persistent leaks is advised. This issue poses a fire risk. Estimated repair cost: $500 - $1500.

Ignition Coil Failure

Ignition coils can fail prematurely, leading to misfires and reduced engine performance. This is a common issue across many Audi models of this era. Estimated repair cost: $400 - $800.

The Positive Crankcase Ventilation (PCV) system can become clogged or develop leaks, leading to increased oil consumption and potential engine damage over time. Estimated repair cost: $300 - $700.

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2012 Audi S4 Maintenance guide

Name: Maintenance dataset for 2012 Audi S4
Creator: Carfocal

v1.0Updated May 23, 2026Ethan Miller4 Sources Analyzed1 Critical Recalls

MAINTENANCE SUMMARY

The 2012 Audi S4 demands diligent maintenance, with a high TSB count suggesting potential for various issues. Focus on fuel system integrity due to a critical recall and be aware of potential ignition coil and PCV system concerns.

View Critical Issue: Fuel System Leaks

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Reliability Score

Est. Annual Maintenance Cost

$800 - $1,500

TSBs & Recalls

464 TSBs | 1 Recalls

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Key Takeaways

Proactive maintenance is essential for the 2012 Audi S4, given its complexity and 464 TSBs.
Prioritize fuel system checks due to a critical recall for fuel rail leaks.

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Critical service intervals

Common failure analysis

Symptoms and prevention guidance