Cooling System Components -Engine Side - Top and Rear

Cooling system components - engine side - top and rear, removing and installing
1. Upper coolant pipe
^ Secured to cylinder head
2. Coolant hose
3. To heat exchanger
4. Connecting piece
5. To heat exchanger
6. To front coolant pipe
7. To coolant hose
8. Cap
^ Check with cooling system tester VAG 1274 and adapter VAG 1274/9
^ Pressure relief valve must open at a pressure of 1.4...1.6
9. 10 Nm
10. Expansion tank
^ Perform leak test of cooling system with cooling system tester VAG 1274 and adapter VAG1274/8
^ Test pressure 1.4...1.6 bar
11. O-ring
^ Replace
12. Retaining clip
^ Check for secure seating
13. Engine Coolant Temperature (ECT) sensor -G62
^ For engine control module
^ If necessary release pressure in cooling system before removing
14. Over-flow connection
15. From left coolant pipe
16. 10 Nm
17. Rear left coolant pipe
18. Gasket
^ Replace if damaged
19. 10 Nm
20. To left cylinder block
21. 10 Nm
22. Coolant pump -V36
23. Coolant thermostat housing
^ With Map controlled engine cooling thermostat -F265
^ Checking: heat-up thermostat in water
^ Opening begins: approximately 86°C
^ Opening lift: min. 7 mm
24. To upper coolant hose
^ item 15
25. To front coolant pipe
^ item 4
26. Coolant pipe
27. 10 Nm
28. 10 Nm
29. Cylinder head/cylinder block
30. Right coolant pipe
31. To oil cooler
^ item 7
32. 10 Nm
33. To alternator
^ item 15
34. To right cylinder block
35. Rear right coolant pipe
36. Coolant pipe
37. From heat exchanger
38. Lower coolant hose
^ item 18
39. 10 Nm
40. 10 Nm