Cooling System

Coolant Hose Connection Diagram


The coolant system is under pressure when the engine is warm.

Risk of scalding due to hot steam and hot coolant.

Reduce pressure by covering coolant reservoir cap with a cloth and carefully opening.

• Secure all hose connections with hose clamps appropriate for the model. Refer to the Parts Catalog.

• The arrows on the coolant pipes and ends of the coolant hoses must align when installing.

with a Manual Transmission






1 Radiator

2 After-Run Coolant Pump (V51)

3 Coolant Pump

4 Coolant Thermostat

5 Engine Oil Cooler

6 Cylinder Head and Cylinder Block

7 Turbocharger

8 Coolant Expansion Tank

• With a cap.

• Checking the pressure relief valve in the cap. Refer to => [ Cooling System, Checking for Leaks ] Testing and Inspection.

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

with a Automatic Transmission






1 Radiator

2 After-Run Coolant Pump (V51)

3 Coolant Thermostat

4 Coolant Pump

5 Engine Oil Cooler

6 Cylinder Head and Cylinder Block

7 Turbocharger

8 Coolant Expansion Tank

• With a cap.

• Checking the pressure relief valve in the cap. Refer to => [ Cooling System, Checking for Leaks ] Testing and Inspection.

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 Fluid Cooler

13 Coolant Connection

14 Coolant Thermostat for the Transmission Fluid Cooler

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