Part 2

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2010 Volkswagen Jetta, 2009 Volkswagen Jetta, 2008 Volkswagen Jetta, 2007 Volkswagen Jetta, and 2006 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.

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.

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.
Circlip
Seal
- Replace after removing the flange, refer to "Flange" in item: 17.
to the Top Expansion Tank Connection
Rear Coolant Line
Bolt/Nut
- 10 Nm
Heat Shield
to the Top Heater Core Connection
Supply Hose
By-Pass Thermostat
- Only for vehicles with a automatic transmission.
- Overview, refer to Fig 2.
- Checking, refer to BY-PASS THERMOSTAT, CHECKING .
to the Transmission Fluid Cooler
- Only for vehicles with a automatic transmission.
to the Bottom Heater Core Connection
from the Transmission Fluid Cooler
- Only for vehicles with a automatic transmission.
Return Hose
Coolant Line
- Bolted to the flange, refer to "Flange" in item: 17.
to the Coolant Thermostat Housing
Flange
Supply Hose
to the Top Radiator Connection
Coolant Hoses
- Only for a throttle valve control module heated by coolant.
Throttle Valve Control Module -J338-
Engine Coolant Temperature Sensor -G62-
O-ring
- Always replace.
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