Over heat intermittenly
My 2008 328XI overheat warning light came on yellow then red ,pull over turn the car off.
After 5 min restart drove 25 mls with out the ligth coming on,that was 3 weeks ago.
Had a oil change done Sunday after a 20 min drive the over heat light came on and there was coolant on and close to the overflow tank.
Restart no problem ,got home let the car run in my driveway ,cant find a leak .
Commute to work 30mls today without problem,could this be the water pump relay or the thermostat .
BTW i not loosing coolant .