Thermostat: Service and Repair

Thermostat, removing and installing





Special tools and equipment
^ T10007 Refractometer
^ V.A.G 1306 Drip tray
^ V.A.G 1331 Torque wrench (5 to 50 Nm)
^ VAS 5024 Assembly tool for spring-type clips

Removing

Note: Always replace seals and gaskets.

- Drain coolant.





- Pull coolant hose off union -3-.
- Unbolt securing bolts -4- of union -3- and remove union -3- together with thermostat -1-.

Installing
Installation is performed in the reverse sequence. Note the following:
- Moisten new O-ring -2- with coolant.
- Install union -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.