11 51 000 Removing and installing/replacing water pump (S54)

WARNING: This page is about a different car, the 2002 BMW M Roadster, 2002 BMW M Coupe, 2001 BMW M Roadster, and 2001 BMW M Coupe. However, it is still accessible from the selected car via links, so may be relevant.

Release water pump belt pulley.

Fig 1: Removing Water Pump Belt Pulley

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Remove alternator drive belt. Refer to 11 28 010 Replacing alternator drive belt (S54) .

Remove pulley from water pump.

Remove coolant thermostat. Refer to 11 53 000 Removing and installing/replacing coolant thermostat (S54) .

Water pump is secured with 5 screws to engine block.

Release screws and remove water pump.

Fig 2: Removing Water Pump

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Installation:

Check dowel pins (1) for damage and correct installation position.

Keep sealing faces clean and free of oil.

Replace seal (2).

Fig 3: Locating Dowel Pins & Seal

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Installation:

Replace sealing ring on pipe (1).

Fig 4: Replacing Sealing Ring On Pipe

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CAUTION: O-ring on pipe (1) can very easily be shorn off when water pump is fitted.

Coat sealing ring with water acting as antiseize agent and carefully fit water pump.