Originally Posted by Killerfish2012
Coolant temp isn't over heating at 104, or 107C. In fact depending on how you are driving, or the ambient temps, it can be quite normal. Get a scanner, and check for trouble codes, if none are present, I wouldn't worry. If you are above 75K miles on the odometer, change your water pump, and thermostat.
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