11 51 000 Removing and installing/replacing coolant pump (N52T)
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 .