I have started to have the same problem on my 93 320E, the coolant level is ok and the temp is ok. Can someone please tell me were to find the sensor. My car is a RHD model.
I really do not not much about cars and engines but I thought I would just check also the hoses on the radiator, there are no leaks, the top hose feels squishy when I squeeze it but the hose comming out of the side of the radiator is hard as though it has a coil inside it. Is this correct please. Thank you for your help.