Cooling System Components, Engine Side

Cooling system engine, component layout






1. 25 Nm (18 ft lb)
2. Pulley
3. 20 Nm (15 ft lb)
4. Engine coolant pump
5. O-ring
6. Throttle body
7. From cylinder head
8. After-run coolant pump (V51)
9. Connector
10. Retaining clip
11. Engine Coolant Temperature (ECT) Sensor (G62) Only for Climatronic (Automatic Climate Control)
12. From heat exchanger
13. To heat exchanger
14. Cap
15. Cover
16. 10 Nm (7 ft lb)
17. Expansion tank
18. Upper coolant hose
19. Lower coolant hose
20. Automatic transmission fluid (ATF) cooler; Only for vehicles with automatic transmission
21. Thermostat housing
22. Coolant hose
23. Oil cooler
24. To cylinder block
25. Drain plug 10 Nm (7 ft lb)