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 ... 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.