Bmw Radiator Fan Not Working

The fan will usually store a fault in the dme for activation or ihka system faulted for excess pressure because fan is not coming on.

Bmw radiator fan not working.

Please try again later. This is possible when the amount of coolant in your system is low. Additional problems can include an issue with the temperature switch the fuse or the cooling fan. I d suggest you sort out your aux fan if you can not sure how the setup is on the m54.

No aux fan on the m54. Https amzn to 2dotdpf in this video we will be using maxisys ms908p to test the radiator fan on this bmw. The auto has an aux fan in the front and a viscous behind the radiator. Go to my website and bmw forum.

If both the low and high speeds do not run go to step 3. Just one single engine fan responsible for all the cooling down of that engine bay. Get professional help with your vehicle contact us at ultimate bimmer service. If the high speed works but the low speed does not go to step 4.

How to test radiator fan on bmw maxicom scanner. The fan has a final stage resistor built in so it gets a pwm signal for activation and speed. Sometimes it feels as if the radiator fan is not working even though it is. Models with one radiator temp switch with three wires connected to the switch most models 87 89 through late 90s.

If playback doesn t begin shortly try restarting your device. The fan should have been on 100 during an overheat situation. If you notice that the fan motor does not work you will need a replacement. If the coolant level is low you need to refill the coolant to optimum levels.

You should make it your daily habit to check the coolant levels in your radiator. If the fan runs at low speed but not on high speed replace the high speed relay.