Water Pump: Service and Repair
Coolant Pump, Removing and Installing
Special tools, testers and auxiliary items required
• Drip tray (V.A.G 1306) or drip tray for workshop crane (VAS 6208)
• Torque wrench (V.A.G 1331)
• Hose clip pliers VAS 6362
Perform the following:
Removing
• Always replace gaskets and seals.
• The lower toothed belt guard can remain installed.
• The toothed belt remains in position on the crankshaft sprocket.
• Cover the toothed belt with a cloth to protect it from coolant before removing the coolant pump.
- Drain the coolant. Refer to => [ Cooling System, Draining and Filling ] Cooling System, Draining and Filling.
- Remove ribbed belt => [ Ribbed Belt, Removing and Installing ] Service and Repair.
- Remove the ribbed belt tensioning damper.
- Remove the upper and center toothed belt guards.
- Remove toothed belt from coolant pump toothed belt gear => [ Toothed Belt, Removing and Installing ] Service and Repair.
- Remove the mounting bolt - 1 - from the rear toothed belt guard - 2 -.
- Remove the coolant pump bolts - 5 - and then remove the coolant pump - 4 -.
Installing
Installation is performed in the reverse order of removal. When doing this note the following:
- Moisten new O-ring - 3 - with coolant.
- Insert coolant pump - 4 -.
Installation position: Sealing plug in housing points downward.
- Tighten mounting bolts - 5 -.
Tightening specification: 15 Nm
- Tighten the mounting bolt - 1 - for the toothed belt guard - 1 - on the cylinder head.
Tightening specification: 20 Nm
- Toothed belt, installing => [ Toothed Belt, Removing and Installing ] Service and Repair.
- Install the ribbed belt tensioning element.
Tightening specification: 25 Nm
- Install the ribbed belt. Refer to => [ Ribbed Belt, Removing and Installing ] Service and Repair.
- Fill the coolant. Refer to => [ Cooling System, Draining and Filling ] Cooling System, Draining and Filling.