Cooling System Components (on Engine)

Cooling system components (on engine)





1. Connection
- For thermostat
2. O-ring
- Always replace
3. Coolant thermostat
- Removing and installing
- Note installation position. Refer to Thermostat, removing and installing.
Checking:
- Heat thermostat in water
- Opening begins at approximately 86°C (187°F)
- Minimum opening: 7 mm (0.28 inch)
4. Bleeder screw
- 20 Nm (15 ft. lbs.)
5. Bolt
- 25 Nm (18 ft. lbs.)
6. Retaining clip
- Make sure clip is seated securely
7. Engine Coolant Temperature (ECT) sensor -G62-
- For Engine Control Module (ECM)
- If necessary, release pressure in cooling system before removing
8. Rear coolant line
- Coolant hose connection diagram
9. Lifting eye
10. 10 Nm (7 ft. lbs.)
11. Coolant line
- Coolant hose connection diagram
12. Front coolant hose
- Coolant hose connection diagram
13. Sealing cap
- Check using VAG1274 cooling system tester with VAG1274/8 adapter
- Test pressure: 1.4 - 1.6 bar (20.23 psi)
14. O-ring
- Replace if damaged
15. Expansion tank
- Check using VAG1274 cooling system tester with VAG1274/9 adapter
16. Upper coolant hose
- Secured to radiator with retaining clip
- Make sure hose is securely seated
- Coolant hose connection diagram
17. Coolant line
- Coolant hose connection diagram
18. Rear toothed belt guard
19. Gasket
- Always replace
20. Coolant pump
- Check for ease of movement
- Completely replace if damaged or leaking
- Removing and installing. Refer to Coolant pump, removing and installing.
21. Lower coolant line
- Coolant hose connection diagram
22. Oil cooler
23. Belt pulley
- For viscous fan
24. Fan wheel for viscous fan
25. Viscous fan coupling
- Note left-hand thread
- Tightening torque only valid when using 3312 open end spanner.
- Tighten to 40 Nm (30 ft. lbs.)
- Removing and installing. Refer to Viscous fan, removing and installing.
26. Bracket
- For viscous fan
27. From bottom of radiator
- Coolant hose connection diagram