Fan Clutch: Service and Repair

Removing and Installing/Replacing Fan Clutch

If necessary, remove air duct.

Note:
S54 (M cars)
Remove engine underguard and release fan cowl.





Caution: Left-hand threads.

Using special tool 11 5 030, grip pulley and unfasten cap nut from water pump using special tool 11 5 040.
If necessary, unfasten fan cowl.
Take the fan wheel with fan coupling off the water pump and remove.





Installation:
Tighten down fan impeller using special tool 11 5 040.
Tightening torque, refer to Specifications, Mechanical.

Note: When using special tool 11 5 040, 30 Nm on the torque wrench scale are equivalent to a tightening torque of 40 Nm.





Unfasten screws and detach fan from fan coupling.