Mitsubishi Outlander GS45X. Manual - part 1581

ON-VEHICLE SERVICE

TSB Revision

ENGINE COOLING

14-27

4. Drain the water in the water jacket by unplugging the drain 

plug of the cylinder block.

5. Remove the radiator condenser tank assembly and drain the 

coolant.

6. Connect the cooling water line hose. <2.4L ENGINE>
7. Connect the water feed hose B. <3.0L ENGINE>

8. Replace the cylinder block drain plug gasket, and tighten the 

drain plug to the specified torque.

Tightening torque: 

39 

± 3 N⋅m <2.4L ENGINE>

29 

± 5 N⋅m <3.0L ENGINE-Left bank side>

140 

± 5 N⋅m <3.0L ENGINE-Right bank side>

9. Install the radiator condenser tank assembly.
10.Securely tighten the radiator drain plug.
11.Assemble the radiator condenser tank assembly.

AC612051AE

<2.4L ENGINE-Exhaust side>

ACA01599

<3.0L ENGINE-Left bank side>

AC

ACA01600

<3.0L ENGINE-Right bank side>

AC

AC611991AC

Cylinder block
drain plug

Gasket

ON-VEHICLE SERVICE

TSB Revision

ENGINE COOLING

14-28

CAUTION

Do not use alcohol or methanol anti-freeze or any engine 
coolants mixed with alcohol or methanol anti-freeze. The 
use of an improper anti-freeze can cause corrosion of the 
aluminum components.
12.Use special tool MB991871 to refill the engine coolant up to 

the top of the radiator port.

Recommended antifreeze: DIA QUEEN SUPER 

LONG LIFE COOLANT PREMIUM or equivalent*

*: similar high quality ethylene glycol based non-sili-

cate, non-amine, non-nitrate and non-borate cool-
ant with long life hybrid organic acid technology

Quantity: 

9.5 dm

3

 (10.0 quarts) <Automatic transaxle>

7.5 dm

3

 (7.9 quarts) <CVT>

[includes 0.65 dm

3

 (0.69 quarts) in the radiator con-

denser tank]

13.Reinstall the radiator cap.
14.Start the engine and let it warm up until the thermostat 

opens.

15.After repeatedly revving the engine up to 3,000 r/min 

several times, stop the engine.

16.Remove the radiator cap after the engine has cooled, and 

pour in coolant up to the brim. Reinstall the cap.

CAUTION

Do not overfill the radiator condenser tank assembly.
17.Add coolant to the radiator condenser tank assembly 

between the "FULL" and "LOW" mark if necessary.

WATER PUMP COOLANT LEAK CHECK

M1141008600284

If a residue of the coolant draining is found on the drain hole, 
the vapor hole and the installation surface, check the water 
pump leakage by following method.
1. Wipe off the residue of the coolant draining on the water 

pump.

WARNING

Make sure that the coolant is cold when removing the 
radiator cap.

2. Remove the radiator cap.

AC703108

MB991871

Air hose

AB

ON-VEHICLE SERVICE

TSB Revision

ENGINE COOLING

14-29

CAUTION

Do not pressures 100 kPa (15 psi) or more.
3. Install the radiator tester and pressures at 100 kPa (15 psi).
4. Hold the pressurized state for 20 minutes, and check that 

the water leakage from the drain hole, the vapor hole or the 
installation surface of the water pump.

5. Remove the radiator tester, and install the radiator cap.
6. Warm up the engine, let it idle for 20 minutes and stop it.
7. After stopping the engine, and check that the water leakage 

from the drain hole, the vapor hole or the installation surface 
of the water pump.

8. If the water leakage is found in step 4 or 7, replace the water 

pump. (Refer to 

P.14-39

 <2.4L Engine>, 

P.14-40

 <3.0L 

Engine>).

ENGINE COOLANT CONCENTRATION TEST

M1141001101548

CAUTION

• Engine coolant of less than 30% concentration has a 

less rust-proof effect. In a concentration of over 60%, 
the antifreeze effect and engine cooling performance of 
the engine coolant are deteriorated, causing a detri-
mental effect on the engine. Therefore, observe the ser-
vice concentration range without fail.

• Use the Dia Queen Super Long Life Coolant Premium 

without adding water because the concentration is pre-
adjusted to 50%.

Using a hydrometer, check if the engine coolant concentration 
is within the standard value range.

Standard value: 30 to 60% (service concentration 
range)

ACX01844AE

Cap adapter

Adapter

ON-VEHICLE SERVICE

TSB Revision

ENGINE COOLING

14-30

COOLING FAN RELAY CONTINUITY CHECK 

 

<2.4L ENGINE>

M1141006201335

.

FAN CONTROL RELAY CHECK

.

RADIATOR FAN RELAY CHECK

.

Battery 
voltage

Terminal No. to be 
connected to tester

Continuity test 
results

Not applied

2 

− 5

Continuity (Less than 
2 ohms)

4 

− 5

Open circuit

Connect 
terminal No. 1 
and battery (+) 
terminal.
Connect 
terminal No. 3 
and battery (

−) 

terminal.

2 

− 5

Open circuit

4 

− 5

Continuity (Less than 
2 ohms)

5

4

1

3

1 2 3

4

5

2

AC506973

AC505376

AB

AB

Fan control relay

Battery 
voltage

Terminal No. to be 
connected to tester

Continuity test 
results

Not applied

2 

− 4

Open circuit

Connect 
terminal No. 1 
and battery (

−) 

terminal.
Connect 
terminal No. 3 
and battery (+) 
terminal.

Continuity (Less than 
2 ohms)

1

3

4

2

4

2

3

1

AC506987

AC505376

AB

AB

Radiator fan relay