Water Pump: Service and Repair

11 51 000 - Removing and installing/replacing water pump (N73)





Warning!
Danger of scalding!
Only perform these tasks on an engine that has cooled down.





Recycling:
Catch and dispose of drained coolant.
Observe country-specific waste-disposal regulations.





Necessary preliminary tasks:
- Remove fan cowl Service and Repair.
- Remove alternator drive belt Replacing Alternator Drive Belt.
- Remove A/C compressor drive belt Replacing A/C Compressor Drive Belt.
- Remove vibration damper Removing and Installing/Replacing Vibration Damper (N73).





Disconnect plug connections (1).
Release screws and remove belt pulley (2).
Unlock and detach both coolant hoses on water pump.





Release screws and remove water pump (1).





Clean sealing faces (1 and 2).

Installation Note:
Replace all gaskets and sealing rings, replace water pump if necessary.





Replace connecting pipe (1) to alternator.

Installation Note:
Coat sealing surfaces of connecting pipe (1) with anti-friction rubber coating.





Installation Note:
When replacing water pump:
Convert coolant thermostat.
Convert water temperature sensor.

Assemble engine.

Check cooling system for leaks Venting Cooling System and Checking for Water Leaks.