Some 3.0L TFSI engines can exhibit increased oil consumption, potentially due to worn piston rings or valve stem seals. This requires regular monitoring and top-offs. Estimated repair cost: $1,500 - $3,000+.

PCV System Malfunction

The Positive Crankcase Ventilation (PCV) system can fail, leading to vacuum leaks and rough idling. This is a common issue on many turbocharged and supercharged Audi engines. Estimated repair cost: $500 - $1,200.

Supercharger Belt Wear

The belt driving the supercharger can wear over time, leading to reduced boost pressure and performance. Regular inspection is recommended. Estimated repair cost: $300 - $600.

Carbon Buildup on Intake Valves

Direct-injected engines like the 3.0L TFSI are prone to carbon buildup on intake valves, impacting performance and fuel efficiency. Walnut blasting is the typical cleaning method. Estimated repair cost: $800 - $1,500.

CARFOCALvehicle research

2016 Audi S4 Maintenance guide

Name: Maintenance dataset for 2016 Audi S4
Creator: Carfocal

v1.0Updated Jun 2, 2026Ethan Miller4 Sources Analyzed

MAINTENANCE SUMMARY

The 2016 Audi S4 presents a significant maintenance commitment, underscored by a high TSB count of 242, indicating numerous potential issues. Owners should prioritize addressing TSBs related to the powertrain and electronics.

View Critical Issue: Oil Consumption

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Reliability Score

Est. Annual Maintenance Cost

$700 - $1,200

TSBs & Recalls

242 TSBs | 0 Recalls

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Key Takeaways

The 2016 Audi S4 has a high TSB count (242), indicating numerous potential issues requiring attention.
Proactive maintenance and addressing TSBs are crucial for reliability.

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Critical service intervals

Common failure analysis

Symptoms and prevention guidance