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audi a3 overheating


markloughrey
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  • 2 weeks later...

The thermostat is an independent unit that basically opens up when the engine coolant is hot enough. It isnt controlled by the ecu. Is it definitely overheating? Or are you just going off what it says in the dash? I had an A3 that showed 12 degrees, but had reached 70 degrees. It turned out to be the dash that was faulty. Also, the temp sender unit may be faulty and gives an inaccurate reading in the dash.

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