Coolant Thermostat, Removing And Installing

WARNING: This page is about a different car, the 2014 Volkswagen Jetta, 2013 Volkswagen Jetta, 2012 Volkswagen Jetta, and 2011 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required

Drip Tray VAG1306 or Shop Crane - Drip Tray VAS6208
Torque Wrench 1331 5-50Nm VAG1331
Hose Clip Pliers

Removing

WARNING:

Risk of scalding due to hot steam and hot coolant.

The coolant system is under pressure when the engine is warm.
Wear protective goggles and protective clothing to prevent damage to eyes and scalding.
Reduce pressure by covering coolant reservoir cap with a cloth and carefully opening.

-- Drain the coolant, refer to COOLANT, DRAINING AND FILLING .

-- Place the Drip Tray under the engine.

-- Remove the coolant hose from the connection -3-.

Fig 1: Identifying Elbow Connection, Bolts, O-Ring & Thermostat

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Remove the bolts -4- from the connection -3- and the connection -3- with the thermostat -1-.

Installing

Install in reverse order of removal. Note the following:

-- Coat the new O-ring -2- with coolant.

Fig 2: Identifying Elbow Connection, Bolts, O-Ring & Thermostat

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Install the connection -3- and the thermostat -1- in the cylinder block.

The clip of thermostat must be positioned at approximately right angle.

-- Tighten the bolts -4-.

Tightening specification: 15 Nm

-- Fill the coolant, refer to COOLANT, DRAINING AND FILLING .