SsangYong Rexton. Manual - part 66

DI06-13

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

COOLING SYSTEM

DI ENG SM - 2004.4

• Replace radiator

• Replace coolant reservoir

• Replace heater

• Reconnect hose or replace clamp

• Replace hose

• Replace gasket

• Replace water pump

• Replace water inlet cap gasket

• Replace thermostat sealing

• Retighten

• Replace cylinder head gasket

• Add coolant

• Check coolant concentration

• Repair or replace hose

• Replace thermostat

• Replace water pump

• Replace radiator

• Replace coolant reservoir or cap

• Replace cylinder head or cylinder block

• Clean coolant passages

• Clean radiator core

• Replace cooling fan or repair related circuit

• Replace sensor or repair related circuit

• Replace thermostat

• Replace cooling fan or repair related circuit

• Replace sensor or repair related circuit

Trouble Diagnosis

Action

Symptom

• Leaks in radiator

• Leaks in coolant reservoir

• Leaks in heater core

• Leaks in hose connection

• Damaged coolant hose

• Leaks in water pump gasket

• Leaks in water pump internal seal

• Leaks in coolant inlet cap

• Leaks in thermostat housing

• Improper tightening torque of cylinder head

• Damaged cylinder head gasket

• Coolant leaks (too low coolant level)

• Improper coolant mixture ratio

• Kinked coolant hose

• Defective thermostat

• Defective water pump

• Defective radiator

• Defective coolant reservoir and cap

• Cracks on cylinder head or cylinder block

• Clogged coolant passages in cylinder head or cylinder block

• Clogged radiator core

• Improper operation of cooling fan

• Faulty temperature sensor or defective harness

• Stuck thermostat (with open)

• Improper operation of cooling fan

• Faulty temperature sensor or defective harness

Cause

Excessively
high coolant
temperature

Low coolant
level

Excessively
low coolant
temperature

DI06-14

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

COOLING SYSTEM

DI ENG SM - 2004.4

INSPECTION AND REPAIR

Y220_06021

Y220_06020

Y220_06019

2. Add the coolant up to upper mark (arrow) on the reservoir.

3. Install the tester to the coolant reservoir and apply the

pressure of 1.4 bar.

4. Check the coolant hoses, pipes and connections for leaks

after the pointer of the tester drops. Replace or retighten
as required.

Immerse the thermostat into the water. Heat the water and
check the valve opening temperature.

Valve opening temperature

DI Engine: 85 ± 2

°C

Cooling System

1. Release the pressure from coolant reservoir by loosening

one notch of coolant reservoir cap, and then remove the
cap.

Thermostat

INSPECTION

Notice

Scalding hot coolant and steam could be blown out
under pressure, which could cause serious injury.
Never remove the coolant reservoir cap when the
before the temperature goes down below 90

°°°°°C.

Temperature gauge

DI06-15

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

COOLING SYSTEM

DI ENG SM - 2004.4

1. Immerse the senor unit into the water. Heat the water

and check the resistance.

2. If the measured resistance is out of specified value,

replace the gauge unit.

3. Measure the resistance between terminal A and gauge

unit housing, and terminal B and gauge unit housing.

1. Immerse the thermostat into the oil. Heat the oil until it

reaches the specified temperature and check if the
coolant temperature switch is turned “OFF”.

0.4 

Ω / 79°C

23.8 

Ω / 115°C

24.8 

Ω / -20°C

3.25 

Ω / 20°C

Terminal A

(for coolant temp.)

Terminal B

(for glow plug)

Coolant Temperature Gauge Unit

Thermostat

Y220_06022

Y220_06023

Y220_06024

Notice

Use only engine oil for this inspection. Stir the oil
during heating it. Never heat the oil over required
temperature.

113 ± 3

°C

116

°C

Coolant temperature at

point A

Coolant temperature at

point B

Terminal A

Terminal B

DI06-16

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

COOLING SYSTEM

DI ENG SM - 2004.4

REMOVAL AND INSTALLATION

Coolant Hose (Inlet/Outlet)

Preceding Work: Draining of coolant

1. Loosen the clamp and remove the coolant outlet hose

(engine to radiator).

2. Disconnect the HFM sensor connector.

3. Remove the air intake duct from the air cleaner.

4. Loosen the clamp and remove the coolant inlet hose

(radiator to thermostat housing).

Y220_06025

Y220_06026

Y220_06027