Car Problem Reports

Audi S4 Overheating Due to Failing Thermostat

Audi S4 Problem
9 Reports
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Model Years Affected: 2004, 2005, 2006, 2007, 2008, 2009, 2010

Average Mileage: 37,350 mi (12,700 mi - 62,000 mi)


The thermostat may erratically stick open or closed. The can result in illumination of the Check Engine Light and/or engine overheating.

  • Visitor, , 12,700 mi

    Car indicated that it was overheating and to stop the engine. Took to dealership under warranty and they've indicated that it was a problem with the thermostat.

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  • Visitor, , 62,000 mi

    Front fans come on full blast, AC shuts off. Temp gauge climbs up.

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