Thermostat: Service and Repair

Removal





1 Drain coolant. Service and Repair
2 Disconnect hose on coolant thermostat housing cover (arrow).
3 Unscrew coolant thermostat housing cover.
4 Remove coolant thermostat with seal out of cover.
5 Check seal for damage and replace, if required.


Installation





NOTE: Replace damaged seal.

6 Place seal on coolant thermostat.






7 Install coolant thermostat with seal in such a manner that arrow on thermostat points upwards.






8 Screw on coolant thermostat housing cover, tighten to 9 - 11 Nm and connect hose.
9 Add coolant. Service and Repair
10 Pressure-test cooling system with tester (approx. 1 bar gauge pressure).