Water Pump: Service and Repair

Coolant pump, removing and installing





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

Note:
^ Always replace seals and gaskets.
^ The lower section of the toothed belt guard need not be removed.
^ The toothed belt should be left in position on the crankshaft sprocket.
^ Cover the toothed belt with a cloth to protect it from coolant before removing the coolant pump.

- Drain coolant.
- Remove poly V-belt.
- Remove tensioning element for poly V-belt.
- Remove upper and center sections of toothed belt guard.-
- Take toothed belt off coolant pump toothed belt sprocket.





- Unscrew securing bolt -1- for rear toothed belt guard -2-.
- Unscrew securing bolts -6- for coolant pump and remove coolant pump -5-.

Installing
Installation is performed in the reverse sequence. Note the following:





- Moisten new O-ring -4- with coolant.
- Install coolant pump -5-. Installed position: Coolant pump sealing plug faces down.
- Tighten securing bolts -6-. Tightening torque: 15 Nm
- Tighten securing bolt -1- for rear toothed belt guard -2- on cylinder head (place washer -3- underneath). Tightening torque: 20 Nm
- Install toothed belt and adjust timing.
- Install poly V-belt tensioning element. Tightening torque: 25 Nm
- Install poly V-belt.
- Fill with coolant.