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      01-04-2013, 01:54 PM   #3
Jeff@TopGearSolutions
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Drives: C6 Z06, 09 335i, 10 335xi
Join Date: Dec 2008
Location: www.TopGearSolutions.com

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I think that means the thermostat is failing. Do you have a tune and did you try updating recently?

This is a common "glitch" so to speak in this car, but if it happens a lot then I would think something like the thermostat is on the way out.

I would first upload fresh firmware and updates on your tune. Don't forget to reset adaptations. If you dont have a tune then something is likely going to fail soon.

Check your coolant level too.

If you do replace the thermostat I would replace the water pump too at that mileage.
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