Cooling System

Coolant Hose Connection Diagram





1 Radiator

• Removing and installing, refer to => [ Radiator ] Service and Repair.

• Replace coolant after replacing.

2 Coolant Pipe

3 Intake Manifold

4 Coolant Pump and Coolant Thermostat

• Coolant pump removing and installing. Refer to => [ Coolant Pump ] Service and Repair.

• Thermostat removing and installing. Refer to => [ Coolant Thermostat ] Coolant Thermostat.

• Checking the coolant thermostat, refer to - item 17 -=> [ Coolant Thermostat ] Cooling System Components, Engine Side.

5 Front Coolant Pipe

• Secured to the accessory bracket.

6 Right Coolant Pipe

• Secured to the engine mount.

7 Expansion Tank

• With sealing cap.

• Checking pressure relief valve in cap. Refer to => [ Checking the Pressure Relief
Valve in the Cap ] Cooling System, Checking For Leaks.

8 Rear Coolant Pipe

9 Cylinder Head/Cylinder Block

• Replace coolant after replacing.

10 Coolant Distribution Housing

11 Quick Release Coupling

• Lower connection.

12 Heater Core of Heater

• Replace coolant after replacing.

13 Quick Release Coupling

• Upper connection.

14 Bypass Thermostat

• Only for vehicles with a automatic transmission.

• Assembly overview, refer to => [ Bypass Thermostat Assembly
Overview ] Cooling System Components, Engine Side.

• Checking, refer to => [ Bypass Thermostat Checking ] Cooling System Components, Engine Side.

15 Automatic Transmission Fluid (ATF) Cooler

• Only for vehicles with a automatic transmission.

16 Oil Cooler

17 Coolant Hose

2 versions:

• Without engine pre-warming.

• With engine pre-warming.

18 Pre-Warmer

• Only on vehicles with engine pre-warming.

19 Throttle Valve Control Module (J338)

• Connection only for coolant heated throttle valve control module.

20 Coolant Hoses

• Only for the throttle valve control module heated by coolant.

21 Quick Release Coupling

• Upper connection

22 Quick Release Coupling

• Lower connection