11 51 000 Removing And Installing/Replacing Water Pump (N54)
WARNING: This page is about a different car, the 2010 BMW 135i, 2009 BMW 135i, and 2008 BMW 135i. 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.
Only perform this work after engine has cooled down.
Recycling:
Catch and dispose of drained coolant in a suitable container.
Observe country-specific waste-disposal regulations.
IMPORTANT:
Aluminum screws/bolts must be replaced each time they are released
.
Aluminum screws/bolts are permitted with and without color coding (blue). For reliable identification: Aluminum screws/bolts are not magnetic . Jointing torque and angle of rotation must be observed without fail (risk of damage) .
Aluminum screws/bolts are permitted with and without color coding (blue). For reliable identification: Aluminum screws/bolts are not magnetic . Jointing torque and angle of rotation must be observed without fail (risk of damage) .
Necessary preliminary tasks:
- Drain COOLANT .
- Remove coolant thermostat . See 11 53 000 REMOVING AND INSTALLING/REPLACING COOLANT THERMOSTAT (N54) .
Release coolant hose (1).
Disconnect plug connection (4).
Release screws (5).
Installation:
Replace aluminum screws .
Tightening torque. See 11 51 COOLANT PUMP WITH DRIVE .
Installation:
If a coolant pump is reused, it must be mechanically rotated once (breakaway torque at pump gears).
One coolant pump rotation will be sufficient.
Assemble engine.
Venting instructions must be observed without fail . See 17 00 039 VENTING COOLING SYSTEM AND CHECKING FOR WATER LEAKS (N54) .