Coolant Outlet: Service and Repair

17 .. ... Removing and installing/replacing coolant pipe on cylinder head cover on left (N63 hybrid)





Warning!
High-voltage system - danger to life!





Warning!
The following points must be strictly observed prior to starting work:
^ De-energise the high-voltage system
^ Observe safety instructions for handling with hybrid vehicles

Warning!

Danger of scalding!
Only perform these tasks on an engine that has cooled down.





Recycling:
Catch and dispose of drained coolant.
Observe country-specific waste-disposal regulations.





Necessary preliminary tasks:
^ Remove left air filter housing
^ Remove left inter cooler
^ Drain coolant





Unlock coolant hose (1) and detach from coolant pipe.

Release screws (1).

Tightening torque 17 10 3AZ.





Unclip coolant pipe (2) from holder (3).





Unlock coolant hose (1) on coolant pump and detach.





Pull off lug (1) on coolant pipe from crankcase.

Feed out coolant pipe (2) and remove.





Assemble engine.

Check cooling system for leaks.