Water Pump: Service and Repair

Coolant Pump and Thermostat

Special tools, testers and auxiliary items required

• Drip tray (V.A.G 1306)

• Torque wrench (V.A.G 1331)

Removing

- Drain coolant --> [ Cooling System, Draining and Filling ] Procedures.

- Remove upper coolant hose at coolant thermostat housing.

- Remove coolant fan with mount --> [ Coolant Fan with Mount ] Coolant Fan with Mount.

- Remove ribbed belt --> [ Ribbed Belt ] Ribbed Belt

- Remove toothed belt --> [ Toothed Belt, Removing, Installing and Tensioning ] Toothed Belt, Removing, Installing and Tensioning

If coolant thermostat must be replaced:

- Remove bolts of coolant thermostat housing - arrows -.





- First, remove seal and then coolant thermostat.

Installing

- Install coolant thermostat with breather valve - arrow - facing upward.





- Moisten new O-ring with coolant and install.

- First, fasten coolant thermostat housing bolts by hand, and then tighten them to 10 Nm.

If coolant pump must be replaced:

- Remove nuts - 1 - for toothed belt cover.





- Remove all bolts for coolant pump - arrows -.

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

- Insert coolant pump with gasket.

- Fasten all bolts by hand and then tighten. Torque specification: 14 Nm

- Install toothed belt --> [ Toothed Belt, Removing, Installing and Tensioning ] Toothed Belt, Removing, Installing and Tensioning

- Install ribbed belt --> [ Ribbed Belt ] Ribbed Belt

- Fill with coolant --> [ Cooling System, Draining and Filling ] Procedures.