Coolant Thermostat

Coolant Thermostat

Special tools, testers and auxiliary items required

• Hex Ball Socket (T10058)

• Torque Wrench (5-50 Nm) (V.A.G 1331)

Removing

- Drain the coolant. Refer to => [ Draining and Filling ] Service and Repair.

- Remove the cover for the air duct; disengage the side clips to do so - arrows -.






- Unclip the air duct from the lock carrier air duct, disengage the clips to do so - arrows -.






- Remove both the air duct and the intake air duct.

- Remove the charge air pipe from the noise generator, if equipped.

- Loosen the hose clamp - 2 -.






- Remove the bolt - 4 -.

- Disconnect the electrical connector - arrow -.

- Remove the bolt - 1 - and remove the charge air pipe downward.

- Free up the coolant hose - 2 - and electrical harness - 1 -.






- Remove the bolt - arrow - and remove the bracket.

- Remove the after-run coolant pump bracket bolt - 2 -.






• The after-run coolant pump stays in the installed position.

- Remove the coolant hoses - 1 and 2 - and lay them aside.






- Loosen the nut - 2 -, remove the bolt - 1 - and move the support for the intake manifold to the right.






- Remove the oil separator. Refer to => [ Oil Separator ] Oil Separator.

- Remove the bolts - arrows - and remove the connecting piece. For the right bolt, the hex ball socket (T10058) is useful.






- Remove the coolant thermostat.

Installing

• Tightening specifications, refer to => [ Coolant Pump and Thermostat Overview ] Coolant Pump and Thermostat Overview.

Install in reverse order of removal. When doing this note the following:

• Replace the gaskets and O-rings.

- Clean the O-ring sealing surface.

- Lubricate the O-ring with coolant.

- Install the thermostat - 4 - into the coolant pump - 5 - and move it slightly forward - arrow -.






- Carefully install the connecting piece - 3 -; while doing so, insert the centering pin - 2 - into the guide - 1 -.