Coolant temp sensor Location 2001 A6 2.7 Turbo

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#21

04-23-2014, 06:38 PM

aspen79

1st Gear

Join Date: Aug 2008

Posts: 420

The 4 pin on the rear of the engine is for the temp gauge and is also the ECM temp sensor. There's actually two circuits inside the unit, one a temp sensor and the other a temp sender. They can fail individually.

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