11 51 000 Removing and installing/replacing water pump (M54)

WARNING: This page is about a different car, the 2005 BMW Z4, 2004 BMW Z4, and 2003 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove suction filter housing .
Remove alternator drive belt . See GENERATOR DRIVE BELT .
Secure engine in installation position with special tool .

Drain and dispose of coolant . See 17 00 005 DRAINING OFF AND TOPPING UP COOLANT .

Installation:

Replace seal.

Tightening torque, see 11 11 5AZ in ENGINE - TIGHTENING TORQUES .

Vent cooling system and check for leaks.

Release engine mount at top left.

Installation:

Tightening torque, see 22 11 1AZ in ENGINE - TIGHTENING TORQUES .

Raise engine with special tool approx. 3 cm to ensure removal of water pump.

Measurement A = 3 cm

Fig 1: Releasing Engine Mount At Top Left

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Release nuts and remove belt pulley.

Fig 2: Removing Belt Pulley

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Unscrew nuts.

Tighten two screws (M 6) into thread (1) of water pump (2) and press water pump uniformly out of timing case.

Fig 3: Tightening Water Pump Screws

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Installation:

Replace sealing ring (1) and coat with antiseize agent.

Fig 4: Replacing Sealing Ring And Coating With Antiseize Agent

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