Thermostat: Service and Repair

11 53 000 - Removing and installing / replacing coolant thermostat (M57T2)





Necessary preliminary tasks:
- Drain coolant
- Remove fan Service and Repair
- Remove EGR cooler





Recycling:
Catch and dispose of coolant in a suitable container.
Observe country-specific waste-disposal regulations.





Lever out lock (1)
Lever out lock (2) and detach coolant hose.
Release screws (3).
Carefully remove thermostat housing to one side.
Risk of damage to coolant pipe (1).






Note:
The coolant thermostat is integrated in the coolant thermostat housing and can only be replaced as a complete unit.

Installation:
Clean sealing surfaces.
Replace seal (1).





Assemble engine.