Thermostat, removing and installing

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Fig 1: Identifying Special Tools - T10007, V.A.G 1306, V.A.G 1331, VAS 5024

Courtesy of VOLKSWAGEN UNITED STATES, INC.

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. Refer to Cooling system, draining and filling .

Fig 2: Identifying Thermostat & Fasteners

Courtesy of VOLKSWAGEN UNITED STATES, INC.

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. Refer to Filling .