Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
11 51 000 Removing and installing/replacing water pump (N54, N54T)
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.
Aluminium screws/bolts are permitted with and without color coding (blue).
For reliable identification:
Aluminium 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
- Partially release anti-roll bar (all-wheel drive only)
- Drain COOLANT .
- Remove COOLANT THERMOSTAT .
Release coolant hose (1).
Disconnect plug connection (4).
Release screws (5).
Installation note:
Replace aluminium screws .
Tightening torque 11 51 1AZ .
Installation note:
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.
BLEEDING INSTRUCTIONS must be observed without fail .
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.