11 51 000 Removing and installing/replacing coolant pump (N52T)
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 BMW X3, 2016 BMW X3, 2015 BMW X3, 2014 BMW X3, and 2013 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Risk 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 collecting vessel.
Observe country-specific waste disposal regulations.
IMPORTANT:
If a coolant pump that has already been operated is reused, it must be filled with coolant immediately after removal.
Mixture ratio, water: coolant = 1: 1
Protect plug connections against coolant and contamination.
Cover plug connections with suitable materials.
Mixture ratio, water: coolant = 1: 1
Protect plug connections against coolant and contamination.
Cover plug connections with suitable materials.
IMPORTANT:
Aluminum-magnesium materials
.
No steel screws/bolts may be used due to the threat of electrochemical corrosion.
A magnesium crankcase requires aluminum screws/bolts exclusively.
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) .
No steel screws/bolts may be used due to the threat of electrochemical corrosion.
A magnesium crankcase requires aluminum screws/bolts exclusively.
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) .
Installation note:
- All screws, nuts, bolts and hose clamps removed during the repair must be replaced.
- Retaining elements on chassis and suspension and steering parts must be replaced.
Necessary preliminary tasks:
- Remove FAN COWL .
- Drain COOLANT .
- Remove COOLANT THERMOSTAT .
Unlock and disconnect plug connections (1) on steering box.
NOTE:
Mark position of steering box and release screws (2).
Do not remove steering box.
Tightening torque: 32 00 1AZ .
Loosen hose clamps (1).
Detach coolant hoses.
Disconnect plug connection (4).
Release screws (5).
Tightening torque: 11 51 1AZ .
Remove electric coolant pump in downward direction.
Installation note:
Replace aluminum screws.
Installation note:
If the electric coolant pump is reused, it must be rotated one turn due to the breakaway torque at the impeller.
Assemble engine.
Top up COOLANT .