Removal and Replacement

EDITOR NOTE!
This is an ALLDATA procedure. OE does not provide preliminary or associated procedures for this Service; it is important to read the entire article before starting repairs.

Engine Cooling Thermostat, removing and installing




Special tools, testers and auxiliary items required
- Refractometer T10007
- Drip tray V.A.G 1306
- Torque wrench V.A.G 1331
- Spring-type clip pliers VAS 5024

Preliminary Procedures



- Remove hose between throttle valve control module (J338) and charge air cooler.



- if more clearance is needed, remove the throttle valve control module (J338).

- Remove Ribbed Belt. Service and Repair
- Remove Generator. Service and Repair

Removing

Note:
^ Always replace seals and gaskets.

- Drain coolant.






- Pull coolant hose off connecting flange - 3 -.
- Remove securing bolts - 4 - of connecting flange - 3 - and remove flange - 3 - with thermostat - 1 -.

Installing
Installation is performed in the reverse order. When installing, note the following:





- Moisten new O-ring - 2 - with coolant.
- Insert thermostat - 1 - into connecting flange - 3 - and turn 1/4 turn (90°) to right.
- Install connecting flange - 3 - with thermostat - 1 - into engine block.

Note:
^ The brace on the thermostat must be almost vertical.

- Tighten securing bolts - 4 -.
- Tightening torque: 15 Nm
- Fill with coolant.