Cooling System

Coolant Hose Connection Diagram

Risk of scalding due to hot steam and hot coolant.

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

• Cover the coolant reservoir cap with a cloth and then open it slowly to release the pressure in the system.

Risk of injury from coolant fan starting by itself.

• Before working in fan shroud area, disconnect electrical connectors.

• 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 coolant hoses must align.

• Blue = large coolant circuit.

• Red = small coolant circuit.

• Orange = coolant circuit for the charge air cooler.

• Brown = heating circuit.

• The arrows show the coolant flow direction.






1 Front Charge Air Cooling Circuit Radiator

• Change coolant after replacing

2 Radiator

• Change coolant after replacing

3 Engine Coolant Temperature (ECT) Sensor (G62)

4 Coolant Thermostat

5 Coolant Pump

6 Right Charge Air Cooler

• Inside the compressor housing

• Change coolant after replacing

7 Bleeder Screw

8 Cylinder Head

• Cylinder bank 1 (right)

• Change coolant after replacing

9 Bleeder Screw

10 Heater Unit Heat Exchanger

• Change coolant after replacing

11 Coolant Pump (V50)

12 ATF Cooler

• Change coolant after replacing

13 Engine Temperature Control Temperature Sensor (G694)

14 Cylinder Head

• Cylinder bank 2 (left)

• Change coolant after replacing

15 Bleeder Screw

16 Left Charge Air Cooler

• Inside the supercharger housing

• Change coolant after replacing

17 Cap

• Pressure relief valve, checking => [ Pressure Relief Valve in Cap, Checking ] Testing and Inspection

18 Coolant Reservoir

19 Transmission Coolant Valve (N488)

20 Engine Oil Cooler

• Change coolant after replacing

21 Non-Return Valve

• In the coolant hose

22 Non-Return Valve

• In the coolant hose

23 Left Charge Air Cooling Circuit Radiator

• Change coolant after replacing

24 Charge Air Coolant Pump (V188)

25 Bleeder Screw