Thermostat: Service and Repair

Coolant thermostat, removing and installing





Special tools, testers and auxiliary items required
^ Refractometer T10007
^ Drip Tray V.A.G 1306 or Drip Tray for VAS 6100 VAS 6208
^ Torque wrench V.A.G 1331
^ Spring-type clip pliers VAS 5024A

Removing

Note: Always replace gaskets and seals.

- Drain coolant.





- Disconnect coolant hose from connecting piece - 3 -.
- Remove bolts - 4 - from connecting piece - 3 - and remove connecting piece - 3 - with thermostat - 1 -.

Installing
Installation is in reverse order of removal, note the following:
- Moisten new O-ring - 2 - with coolant.
- Insert thermostat in - 1 - connecting piece - 3 - and turn 1/4 (90°) to right.
- Insert connection - 3 - with thermostat - 1 - into engine block.

Note: The clip of the thermostat must be positioned at approx. right angle.





- Tighten mounting bolts - 4 -. Torque specification: 15 Nm
Fill with new coolant.