11 53 740 Removing and installing/replacing feed line (N54, N54T)
WARNING: This page is about a different variant/trim than selected.
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 container.
Observe country-specific waste disposal regulations.
Necessary preliminary tasks:
- Drain COOLANT
- Remove both catalytic exhaust-gas converters See 18 32 050 REMOVING AND INSTALLING/REPLACE CATALYTIC CONVERTER FOR CYLINDERS 1-3 (N54, N54T) or 18 32 060 REMOVING AND INSTALLING/REPLACE CATALYTIC CONVERTER FOR CYLINDERS 4-6 (N54, N54T)
Unfasten hose clip (1).
Tightening torque 11 51 4AZ .
Detach coolant hose of feed line in direction of arrow from coolant pump (2).
IMPORTANT:
Risk of damage!
Where necessary, to release the coolant feed lines (3 and 4), do not place pliers on the pipes.
Where necessary, to release the coolant feed lines (3 and 4), do not place pliers on the pipes.
Release screws (1 and 2).
Tightening torque 11 53 10AZ .
If necessary, release coolant feed lines (3 and 4) with suitable pliers at connection.
Installation note:
Replace O-rings.
NOTE:
For purposes of clarity, the graphic shows the released coolant feed lines removed.
Release screws (1).
Tightening torque 11 53 3AZ .
Remove feed line (2).
Installation note:
Replace seal.
Assemble engine.
Top up COOLANT .
BLEEDING INSTRUCTIONS must be observed without fail.