11 52 020 Removing and installing or replacing fan coupling (M62)

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.

Remove fan wheel with fan coupling from water pump.

Fig 1: Unfastening Cap Nut From Water Pump Using Special Tool 11 5 040

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Installation

Tighten down fan wheel using special tool 11 5 040.

Tightening torque, refer to 11 52 1AZ in ENGINE - TIGHTENING TORQUES - 540i .

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: Tightening Fan Wheel Using Special Tool 11 5 040

Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten screws and detach fan from fan coupling.

Fig 3: Identifying Fan Coupling And Screws

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