Auxiliary Water Pump: Service and Repair

64 11 262 - Removing and installing/replacing auxiliary water pump





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





Necessary preliminary tasks:
- 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 Note:
Follow instructions for working on cooling system Instructions for Working on Cooling System.
Fill and vent cooling system.

If necessary, release expander rivet (2).

Unfasten plug connection (3) and disconnect.

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