Part 1

Part 2, refer to PART 2 .

Fig 1: Identifying Cooling System Components Overview, Engine Side

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

1. Cylinder Block 
2. Oil Cooler 
3. Bolt 
   • 25 Nm
4. Bolt/Nut 
   • 10 Nm
5. to the Bottom Heater Core Connection 
6. Retaining Clip 
7. O-ring 
   • Always replace.
8. Front Coolant Line 
9. Connecting Hose 
10. O-ring 
    • Always replace.
11. Coolant Line 
12. Connecting Hose 
13. Thermostat Housing Cover 
14. to the Bottom Radiator Connection 
15. Bolt 
    • 5 Nm
16. O-ring 
    • Always replace.
17. Coolant Thermostat 
    • Removing and installing, refer to COOLANT THERMOSTAT .
    • Note the installed position:

      The valve must be at the top

    • Checking (coolant thermostat installed):

      Refer to "Guided Functions" in the vehicle diagnostic tester.

    • Checking (coolant thermostat removed):

      Heat up the thermostat in water.

      Starts to open: approximately 87 °C (188.6 °F) Opening ends: approximately 102 °C (215.6 °F) opening distance: minimum 7 mm

18. Seal 
    • Always replace.
19. Bolt 
    • 25 Nm
20. Coolant Thermostat Housing 
21. Seal 
    • Always replace.
22. Accessory Bracket 
23. Bolt 
    • 10 Nm
24. Coolant Pump 
    • With a integrated silicone seal for the cylinder block.
    • Removing and installing, refer to COOLANT PUMP .
25. Right Coolant Line 
    • Secured to the engine mount.
26. to the Bottom Expansion Tank Connection