Water pump — removal and installation (Audi A6 C5)

Table of contents: Removal ↓ Installation ↓

Removal

Cars with gasoline engines

1. Set the upper front cross member to the service position.

2. Disconnect the coolant supply hose from the pipe on the water pump housing.

3. Disconnect the lower coolant hose from the radiator by removing the clamp (see arrow in illustration) and drain the coolant.

3.3. Disconnect the lower coolant hose from the radiator by removing the clamp (see arrow). Cars with gasoline engines

4. Disconnect the coolant hoses from the thermostat housing.

5. Unscrew the bolts (see arrows in the illustration) fasteners and remove the thermostat housing.

3.5. Unscrew the bolts (see arrows) fasteners and remove the thermostat housing. Cars with gasoline engines

6. Disconnect the coolant hose by removing clamp 1 (see illustration).

3.6. Disconnect the coolant hose by removing the clamp 1. Cars with a gasoline engine

7. Unscrew the mounting bolts (see arrows in illustration 3.6) and carefully remove the water pump housing.

8. Carefully remove the water pump shaft (see arrow in illustration) from the guide on the oil pump body.

3.8. Carefully remove the water pump shaft (see arrow) from the guide on the oil pump housing. Cars with gasoline engines

9. Unscrew the bolts (see arrows in the illustration) fasteners and remove water pump 2 from housing 1.

3.9. Unscrew the bolts (see arrows in the illustration) fasteners and remove the water pump 2 from the housing 1. Cars with a gasoline engine

Diesel Engine Cars

10. Drain the coolant (see the relevant chapter).

11. Remove the front bumper (see the relevant chapter).

12. Set the upper front cross member to the service position (see paragraphs 3.1-3.6 in Section 2C).

13. Remove the accessory drive V-belt (see the relevant chapter).

14. Remove the accessory drive toothed belt (see the relevant chapter).

15. Unscrew the bolts (see arrows in the illustration) and remove the rear timing cover.