64 11 262 Removing and installing/replacing auxiliary water pump

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2010 BMW 535xi, 2010 BMW 535i, 2009 BMW 535xi, 2009 BMW 535i, and 2008 BMW 535xi. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Danger of scalding!
Only perform this work after engine has cooled down.

Necessary preliminary tasks:

If necessary, remove intake filter housing.
DISCONNECT COOLANT HOSES FROM AUXILIARY WATER PUMP .

Unlock fast-release couplings (1) and detach coolant hoses from auxiliary water pump (4).

Installation:

FOLLOW INSTRUCTIONS FOR WORKING ON COOLING SYSTEM .

Fill and vent cooling system.

If necessary, release expander rivet (2).

Unfasten plug connection (3) and disconnect.

Fig 1: Detaching Coolant Hoses From Auxiliary Water Pump

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Ensure correct routing of cables.

Remove auxiliary water pump (4) in direction of arrow.

Replacement:

Detach auxiliary water pump fixture (1) in direction of arrow from auxiliary water pump (2).

Installation:

Make sure auxiliary water pump (2) is correctly seated in auxiliary water pump fixture (1).

Fig 2: Detaching Auxiliary Water Pump Fixture

Courtesy of BMW OF NORTH AMERICA, INC.