11 51 000 Removing and installing complete water pump (M52 / S52 / M52TU / M54 / M56)

WARNING: This page is about a different car, the 2003 BMW 525i, 2002 BMW 525i, and 2001 BMW 525i. However, it is still accessible from the selected car via links, so may be relevant.

Remove alternator drive belt. See 11 28 010 Replacing alternator drive belt (M52 / S52 / M52TU / M54 / M56)

NOTE: M52/S52
Water drain plug is located on exhaust side between cylinders 4 and 5 in engine block (illustration).
M52TU / M54 / M56

Water drain plug is located on exhaust side on cylinder 2 in engine block.

Fig 1: Identifying Water Drain Plug

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Drain and dispose of coolant.

Installation:

Replace seal.

Tightening torque. Refer to ENGINE - TIGHTENING TORQUES .

Vent cooling system and check for leaks.

Release belt pulley.

Fig 2: Releasing Belt Pulley

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Release water pump.

Fig 3: Releasing Water Pump

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

Fig 4: Tightening Screws Into Thread Of Water Pump & Water Pump Out Of Timing Case

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Installation:

Replace O-ring and coat with coolant as anti-friction agent.

Fig 5: Replacing O-Ring & Coating With Coolant As Anti-Friction Agent

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