Thermostat: Service and Repair

11 53 000 Removing And Installing/Replacing Coolant Thermostat (N55)







WARNING:
Risk of scalding.
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:
- Remove front underbody protection.
- Drain coolant.







Release hose clamp (1) and detach coolant hose.
Release hose clamp (2) and detach coolant hose.
Unlock and detach coolant hose (3).
Unlock and detach coolant hose (4).
Disconnect plug connection (5).
Release screws (6).
Tightening torque 11 53 1AZ.
Remove coolant thermostat (7).

NOTE:
Illustration shows coolant thermostat removed.







Assemble engine.