Cooling System

Coolant Hose Connection Diagram

Vehicles with a Manual Transmission:





1 Radiator

2 After-Run Coolant Pump (V51)

3 Coolant Pump

4 Coolant Thermostat

5 Oil Cooler

6 Cylinder Head and Cylinder Block

7 Turbocharger

8 Coolant Expansion Tank

• With sealing cap.

• Pressure relief valve in cap, checking. Refer to => [ Cooling System, Checking for Leaks ] Cooling System, Checking For Leaks.

9 to the Auxiliary Heater

• Not available in the US/Canadian market.

10 from the Auxiliary Heater

• Not available in the US/Canadian market.

11 Heater Core

12 Coolant Connection

Vehicles with a Automatic Transmission





1 Radiator

2 After-Run Coolant Pump (V51)

3 Coolant Thermostat

4 Coolant Pump

5 Oil Cooler

6 Cylinder Head and Cylinder Block

7 Turbocharger

8 Coolant Expansion Tank

• With sealing cap

• Pressure relief valve in cap, checking. Refer to => [ Cooling System, Checking for Leaks ] Cooling System, Checking For Leaks.

9 to the Auxiliary Heater

• Not available in the US/Canadian market.

10 from the Auxiliary Heater

• Not available in the US/Canadian market.

11 Heater Core

12 Transmission Oil Cooler

13 Coolant Connection

14 Thermostat for the Transmission Oil Cooler

• On some vehicles, the thermostat is located on the outflow side of the transmission oil cooler.