Part 2

Part 1, refer to PART 1 .

Fig 1: Identifying Cooling System Components (On Engine), Assembly Overview Part 2

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

1. Coolant Adapter 
   • Pressed into the cylinder head.
   • Clean before installing the flange, refer to "Flange" in item:  17.

     -- If necessary, remove coolant deposits using a copper wire brush or fine sandpaper (minimum 100 grit).

   • If the adapter is worn, replace it using liquid locking fluid D 000 600 A2.
2. Circlip 
3. Seal 
   • Replace after removing the flange, refer to "Flange" in item:  17.
4. to the Top Expansion Tank Connection 
5. Rear Coolant Line 
6. Bolt/Nut 
   • 10 Nm
7. Heat Shield 
8. to the Top Heater Core Connection 
9. Supply Hose 
10. By-Pass Thermostat 
    • Only for vehicles with a automatic transmission.
    • Overview, refer to Fig 2.
    • Checking, refer to BY-PASS THERMOSTAT, CHECKING .
11. to the Transmission Fluid Cooler 
    • Only for vehicles with a automatic transmission.
12. to the Bottom Heater Core Connection 
13. from the Transmission Fluid Cooler 
    • Only for vehicles with a automatic transmission.
14. Return Hose 
15. Coolant Line 
    • Bolted to the flange, refer to "Flange" in item:  17.
16. to the Coolant Thermostat Housing 
17. Flange 
18. Supply Hose 
19. to the Top Radiator Connection 
20. Coolant Hoses 
    • Only for a throttle valve control module heated by coolant.
21. Throttle Valve Control Module -J338- 
22. Engine Coolant Temperature Sensor -G62- 
23. O-ring 
    • Always replace.
24. Retaining Clip 

Fig 2: Identifying Bypass Thermostat - Assembly Overview

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

1 - Spring clip

2 - Lower part of housing

- Note the installed position: Arrow points toward the ATF cooler

3 - Operating element

4 - Spring

5 - O-ring

6 - Upper part of housing