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Model Years Affected: 2004, 2005, 2006, 2007, 2008, 2009, 2010
(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.
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.
Front fans come on full blast, AC shuts off. Temp gauge climbs up.
Common Problems > Audi S4
Q&A > Audi > 2004 Audi S4