Bmw E36 Auxiliary Fan Not Working

You could also apply 12v to the fan itself to make sure it works.

Bmw e36 auxiliary fan not working.

Go to my website and bmw forum. Bmw e36 m3 evolution. You might look into. If there is no power in the harness to the fan i would guess that there is a break in the wiring based on the other testing you ve done.

If the fan is not operating check the power connector at the base of the fan and make sure it s seated. Auxiliary fan not coming on. The sensor is located on the passenger s side of the radiator. Could be the fan could be the sensor.

If the fan is not working yes if you idle for a long time it will get hotter. If it does the fan motor is ok. Replace the high speed relay. 04 20 2008 01 29 pm 14.

If the fan itself is the issue the part can be costly but the replacement is relatively straightforward so long as you re careful not to damage the delicate radiator fans. If the fan does not run check for 12 volts at terminal 30 in the relay socket. Trace the harness and fix it or bypass it. If this still fails to turn on the fan i suggest you turn off the engine for now and consider troubleshooting other aspects of the cooling fan electrical system including the low speed fan relay.

The fan should come on at high speed. If so retry the test jumpering from terminal 30 to 87a. You should be careful as the current draw is substantial. Go to my website and bmw forum.