2013 Audi S6 Problems: 3 Known Issues
2013 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated October 2026
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2013 Audi S6 has 3 documented known issues. None of the listed issues is rated critical; this is not a complete reliability assessment. DIY maintenance guides at au7o.io.
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All 3 Known Issues
NHTSA Recalls3 recalls
AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2018 Audi S6 and S7, 2012-2018 A7 and A6 Sedan, and 2014-2018 RS7 vehicles equipped with basic seats (with or without heating). Stress or wear of the body-sensing mat within the front passenger seat may cause the Passenger Occupant Detection System (PODS) control module to malfunction.
ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
Volkswagen Group of America, Inc. (Audi) is recalling certain 2013-2017 A8, S6 Sedan, S7, S8, and 2014-2017 RS7 vehicles. The turbocharger oil supply strainer can become blocked, causing wear to the bearings due to lack of lubrication.
FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain model year 2013-2014 Audi S6 and S7 vehicles equipped with 4.0L engines. Due to manufacturing tolerance issues, a fuel line may leak fuel.
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Frequently Asked Questions
What are the most common Audi S6 problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2013 Audi S6 has 3 documented issues. The most frequently reported are: 4.0T Carbon Buildup on Intake Valves, 2013 Audi S6 Turbocharger Coolant-Pipe Seepage - Diagnosis Required, 2013 Audi S6 Air-Suspension Compressor or Relay Fault - Diagnosis Required. None are rated critical, but regular maintenance is recommended.
Is the Audi S6 reliable?
The 2013 Audi S6 has 3 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. None of the matching records is rated critical; this is not a complete reliability assessment. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
What is the 2013-2018 Audi S6 4.0T Carbon Buildup on Intake Valves?
The Audi S6 C7 with the 4.0T twin-turbo V8 (direct injection) develops carbon buildup on the intake valves since fuel does not wash over them. This reduces airflow and causes misfires, rough idle, and power loss over time. Severity: medium.
What is the 2013 Audi S6 2013 Audi S6 Turbocharger Coolant-Pipe Seepage - Diagnosis Required?
Audi TSB 2036167/2 documents slow coolant loss at the turbocharger coolant feed and return connections on 2013 S6 4.0T vehicles in VIN range 000001-127113. Supported signs are a low-coolant warning, a low reservoir level and black encrusted coolant residue at the connections. It… Severity: medium.
What is the 2013 Audi S6 2013 Audi S6 Air-Suspension Compressor or Relay Fault - Diagnosis Required?
Audi TSB 2018765/8 covers 2013 C7 S6 vehicles with air suspension when ride-height adjustment is unavailable, the compressor continues running after shutdown and locking, or the system lowers the car and displays a warning. The bulletin identifies a compressor or J403 relay diagn… Severity: medium.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.