Coolant thermostat, removing and installing

WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2006 Volkswagen GTI, 2005 Volkswagen Jetta, 2005 Volkswagen GTI, 2004 Volkswagen Jetta, and 2004 Volkswagen GTI. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Special Tools - Coolant Pump, Removing And Installing

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Special tools, testers and auxiliary items required

Refractometer T10007
Drip Tray V.A.G 1306 or Drip Tray for VAS 6100 VAS 6208
Torque wrench V.A.G 1331
Spring-type clip pliers VAS 5024A

Removing

NOTE:

Always replace gaskets and seals.

Drain coolant, refer to Cooling system, draining and filling .

Fig 2: Identifying Thermostat & Fasteners

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Disconnect coolant hose from connecting piece - 3 -.
Remove bolts - 4 - from connecting piece - 3 - and remove connecting piece - 3 - with thermostat - 1 -.

Installing

Installation is in reverse order of removal, note the following:

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

NOTE:

The clip of the thermostat must be positioned at approx. right angle.

Fig 3: Identifying Thermostat & Fasteners

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Tighten mounting bolts - 4 -. Torque specification: 15 Nm

Fill with new coolant, refer to Cooling system, draining and filling .