2013 Audi S4 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2013 Audi S4

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2013 Audi S4 Problems

Decreased Power and Fuel Economy from Carbon Buildup

The 2010-2017 Audi S4 with the 3.0TFSI direct injection engine are subject to carbon buildup in the intake system which can cause power loss, OBD codes and a check engine light, and a rough idle. In normal engines, the engine is cleaned by the gasoline flowing through the injectors and into the intake system, however, the S4 uses direct injection so gasoline does not flow through common carbon buildup areas. 

Possible trouble codes include: P0300P0301P0302P0303P0304, P0305, P0306.

The solution is to remove the intake manifold and professionally clean the intake manifold, intake ports on the cylinder head, and the intake valves. This may need to be done in as few as 20,000 miles. 

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2013 Audi S4 Recalls

Front Air Bags May Not Deploy In A Crash

In a crash where the first impact deploys the side air bags and a second impact occurs in the front of the vehicle, the front air bags may not deploy. Dealers will update the air bag control unit software free of charge to correct the concern.

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