11 52 020 Removing and installing or replacing fan clutch (N62)

WARNING: This page is about a different car, the 2005 BMW 645Ci and 2004 BMW 645Ci. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

11 5 040
11 5 050

CAUTION: Left-hand threads.

Using special tool 11 5 050 brace against pulley and unfasten cap nut from water pump using special tool 11 5 040.

Fig 1: Unfastening Cap Nut From Water Pump

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Remove fan wheel with fan coupling from water pump.

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 Nm on the torque wrench scale are equivalent to a tightening torque of 40 Nm.

Fig 2: Identifying Special Tool 11 5 040

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Release screws, detach fan from fan clutch.

Fig 3: Releasing Fan Screws

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