If the fuse is not blown the most likely fault is the final stage unit or the fan motor.
E39 aux fan relay location.
Fuse box in passenger compartment bmw e39.
Open the glove compartment and turn the two white quick release knobs to the left.
Go to my website and bmw forum.
Id your model and search.
This is the electrical fuse and relay box under the plastic cover in the passenger side rear of the engine bay.
If the fan does not run replace the low speed resistor.
Click below for low speed fan resistor.
The resistor is mounted on the fan housing.
Fuses and relay bmw 5 e39.
How to diagnose your fan if it s in working order for 10 1998 and up bmw e38 and e39 before this date have a resistor pack that can be changed to fix this i.
If the fuse is blown replace it and see what happens.
E39 auxiliary fan wiring diagram wiring diagram is a simplified up to standard pictorial representation of an electrical circuit it shows the components of the circuit as simplified shapes and the aptitude and signal friends together with the devices.
Click below for 4 pin low speed relay.
Spare fuses and plastic tweezers are located on the fuse holder.
Remove the low speed relay and apply a jumper wire between terminals 30 and 87 in the relay socket.