Here are the details about it signs of its failure and ways you can fix the blower motor resistor.
E39 aux fan resistor test.
Bmw part 67 32 8 371 873 check fit below.
Make sure this fits by entering your model number.
Click below for auxiliary cooling fans.
Disconnect the connector and make sure you have the fan side and not the vehicle side.
One other way to check this would be to bench test it by applying power and ground to the aux fan from the connector for the fan.
However it is susceptible to failure which will affect the luxury of driving a bmw.
Auxiliary fan resistor repair kit brand new part with full 1 year warranty.
Crimp a male spade onto each end of a length of 18 gauge or larger wire.
The aux fan connector is located with the engine open tucked down by the bumper.
Id your model and search fan resistor.
This fits your.
A c is all original as was the cooling system until very recently.
Last week i lost the a c blower function i e the a c system comes on and the compressor kicks in but their is no forced air in the system.
Tools needed was a 1 4 ratchet.
Being short of time in a fit of stupidity i took the car to the stealer who charged me a ridiculous amount of money to replace the.
Test fan motor remove the high speed relay.
Bmw e38 e39 auxiliary fan resistor repair kit genuine new oem visit the bmw store.
To test the fan itself you ll need a source of 12vdc i use a motorcycle battery.
This is for a 2001 e39 540i with about 83 000 miles.