Coolant Reservoir: Service and Repair
17 11 100 Removing and installing/replacing coolant expansion tank (N55)Necessary preliminary tasks:
^ Drain coolant.
Release and disconnect coolant hoses (3).
Release screws (1).
Tightening torque 17 10 4AZ.
Lift expansion tank (2) slightly until connector on coolant level switch at bottom is accessible.
Release and unplug connector from coolant level switch.
Remove coolant expansion tank (2).
Installation note:
Insert locating pin in rubber grommet.
Vent cooling system and check for leaks.