Overheating Due to Failing Thermostat on Audi S6

Submitted by Vehicle Owner · May 29, 2025
Published by RepairPal

Problem overview

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

11 people reported this problem
2 comments
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Audi S6 vehicles with this problem

Average mileage: 59,200 miles
(15,000 - 101,000)

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