Cooling System Components, Engine Side

Cooling system components, engine side
1. 25 Nm (18 ft. lbs.)
2. Coolant pump
^ Check arm for ease of movement
^ If damaged and leaking replace complete assembly
3. O-ring
^ Always replace
4. EGR cooler
5. To expansion tank
6. Coolant hose, upper
7. To cylinder head
8. To heat exchanger
9. From heat exchanger
10. Coolant pipe
11. 10 Nm (7 ft. lbs.)
12. To expansion tank, lower
13. EGR cooler supply
14. Connection
^ With glow plugs -Q7- for auxiliary heater
15. To top of radiator
^ Clipped to bulkhead
16. O-ring
^ Make sure it is seated securely
^ Always replace
17. To bottom of radiator
18. Connection
^ For thermostat
19. Coolant thermostat
^ Checking: heat-up thermostat in water
^ Opening starts at 85°C approximately
^ Ends approximately 105°C
^ Opening lift 7 mm minimum
20. Oil cooler