Thermostat, removing and installing

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 

• 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.

• Tighten securing bolts -4-. Tightening torque: 15 Nm
• Fill with coolant. Refer to Filling  .