Coolant Reservoir: Service and Repair

17 11 100 - Removing and installing/replacing coolant expansion tank (M54/N52/N54/N46T)





Necessary preliminary tasks:
- Drain coolant from radiator





Release and disconnect coolant hoses (1).
Release screws.
Raise expansion tank, unlock plug on coolant level switch and disconnect.
Remove coolant expansion tank (2).

Installation:
Insert locating pin in rubber grommet.





Check cooling system for leaks 17 00 039 Venting Cooling System and Checking For Leaks.