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      02-24-2013, 11:09 AM   #904
Killerfish2012
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Drives: E90 335I, E92 M3
Join Date: Feb 2012
Location: Midwest

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Quote:
Originally Posted by millseyent View Post
It is overheating though, i get the amber then red warning symbols, my coolant temp shoots up to 120+ deg C, but after shutting the car down for about 1 minute the temp drops down to around 100 deg C and the fault clears.

Everything points to it being the coolant sensor or the pump, but BMW have said they are fine, so I am at a loss as to what else it could be
What is your mileage, and how old is the car? Looks a lot like a failing water pump to me, as this is exactly what happened to me. Could also be a failing fan. So you need to buy a code reader like the peak scan tool, and pull the code to find out what component is wrong. Guessing at it, isn't the right approach.
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E90 335I: FBO +wavetrac LSD
E92 M3: K&N, Rouge Engineering Pulleys, Macht Schnell Test Pipes, Pagid S, V1