View Full Version : E36 M3 aux fan is not working... Help

06-23-2010, 06:23 PM
I need some help with this damn thing. It's starting to piss me off

the fan is not turning on at all. I replaced the fuse and both relays. At the end of the terminal where the fan connects there Is mo power. But there is power is the relay.

Is there any way to find out what exactly the problem is.

Could the temp switch be burnt out?

Any help is appreciated.

06-23-2010, 07:56 PM
Unplug the temp switch and stick wire into the ground port and the other end in the high speed or low speed hole. It's really easy. If the fan works on both speeds, then it's the switch.

06-23-2010, 09:35 PM
does your ac work pressure are good??

06-23-2010, 10:28 PM
Ac does not work.

The fan works. I'm 110% sure of that. I think it is the switch cause I plugged it out and put one wire into the ground and the other on the low and high speed but fan didn't power up.