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11 52 020 Removing And Installing/Replacing Fan Clutch (S52/S54/M52/M52TU/M54/M56)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2006 BMW M3, 2005 BMW M3, 2004 BMW M3, 2003 BMW M3, and 2002 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.

Special Tools Required: 

If necessary, remove air duct.

NOTE: S54: 

Remove engine underguard and release fan cowl.

IMPORTANT: 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.

Fig 1: Securing Pulley Using Holder (Special Tool 11 5 030)
G03118060Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Tighten down fan impeller using special tool 11 5 040.

Tightening torque, refer to 11 52 1AZ in ENGINE - TIGHTENING TORQUES .

NOTE: When using special tool 11 5 040, 30 N.m. on the torque wrench scale are equivalent to a tightening torque of 40 N.m.
Fig 2: Identifying Open-Ended Spanner WAF 32
G03118061Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten screws and detach fan from fan coupling.

Fig 3: Locating Fan To Fan Coupling Retaining Screws
G03118062Courtesy of BMW OF NORTH AMERICA, INC.