Mitsubishi Lancer Evolution X. Manual - part 465

SPECIAL TOOLS

TSB Revision

ENGINE COOLING

14-15

SPECIAL TOOLS

M1141000601487

Tool

Tool number and name Supersession

Application

MB991958

a: MB991824
b: MB991827
c: MB991910
d: MB991911
e: MB991914
f: MB991825
g: MB991826

Scan tool (M.U.T.-III sub 
assembly)

a: Vehicle 

communication 
interface (V. C. I.) 

b: M.U.T.-III USB cable
c: M.U.T.-III main 

harness A (Vehicles 
with CAN 
communication 
system)

d: M.U.T.-III main 

harness B (Vehicles 
without CAN 
communication 
system)

e: M.U.T.-III main 

harness C (for 
Chrysler models only)

f: M.U.T.-III 

measurement adapter

g: M.U.T.-III trigger 

harness

MB991824-KIT
NOTE: g: MB991826 
M.U.T.-III Trigger 
Harness is not 
necessary when 
pushing V.C.I. ENTER 
key.

CAUTION

For vehicles with CAN 
communication, use 
M.U.T.-III main harness A 
to send simulated vehicle 
speed. If you connect 
M.U.T.-III main harness B 
instead, the CAN 
communication does not 
function correctly.

• Checking diagnostic 

trouble code (DTC).

• Checking actuator test.

MB991910

MB991826

MB991958

MB991911

MB991914

MB991824

MB991827

MB991825

Do not use

a

b

c

d

e

f

g

Do not use

SPECIAL TOOLS

TSB Revision

ENGINE COOLING

14-16

MB991223

a: MB991219
b: MB991220
c: MB991221
d: MB991222

Harness set

a: Test harness
b: LED harness
c: LED harness adaptor
d: Probe

General service tools

Checking the continuity and 
measuring the voltage at the 
harness connector

MB992006
Extra fine probe

General service tool

Continuity check and 
voltage measurement at 
harness wire or connector 
for loose, corroded or 
damaged terminals, or 
terminals pushed back in 
the connector.

MB991871
LLC changer

General service tool

Coolant refilling

MB992042
Water temp sensor 
wrench

MB992042-01

Engine coolant temperature 
sensor removal and 
installation

Tool

Tool number and name Supersession

Application

MB991223

a

d

c

b

DO NOT USE

BF

MB992006

AB

MB991871

MB992042

ON-VEHICLE SERVICE

TSB Revision

ENGINE COOLING

14-17

ON-VEHICLE SERVICE

ENGINE COOLANT LEAK CHECK

M1141001000849

WARNING

When pressure testing the cooling system, slowly 
release cooling system pressure to avoid getting 
burned by hot coolant.

CAUTION

• Be sure to completely clean away any moisture from 

the places checked.

• When the tester is taken out, be careful not to spill any 

coolant.

• Be careful when installing and removing the tester and 

when testing not to deform the filler neck of the radia-
tor.

1. Check that the coolant level is up to the filler neck. Install a 

radiator tester and apply 160 kPa (23 psi) pressure, and 
then check for leakage from the radiator hose or 
connections.

2. If there is leakage, repair or replace the appropriate part.

RADIATOR CAP OPENING PRESSURE CHECK

M1141001301003

NOTE: Be sure that the cap is clean before testing. Rust or 
other foreign material on the cap seal will cause an improper 
reading.

1. Use a cap adapter to attach the cap to the tester.
2. Increase the pressure until the indicator of the gauge stops 

moving.

Minimum limit: 83 kPa (12 psi)
Standard value: 93 − 123 kPa (14 − 18 psi)

3. Replace the radiator cap if the reading does not remain at or 

above the limit.

ENGINE COOLANT CHANGE

M1141001201459

Required Special Tool:

• MB991871: LLC changer

1. Remove the engine room under cover front A (RH). (Refer to 

GROUP 51, Under Cover 

P.51-15

)

ACX01844AE

Cap adapter

Adapter

ACX01845

Cap adapter

AD

ON-VEHICLE SERVICE

TSB Revision

ENGINE COOLING

14-18

WARNING

When removing the radiator cap, use care to avoid 
contact with hot coolant or steam. Place a shop towel 
over the cap and turn the cap counterclockwise a lit-
tle to let the pressure escape through the vinyl tube. 
After relieving the steam pressure, remove the cap by 
slowly turning it counterclockwise.

2. Drain the water from the radiator, heater core and engine 

after unplugging the radiator drain plug and removing the 
radiator cap.

3. Remove the engine room under cover front B. (Refer to 

GROUP 51, Under Cover 

P.51-15

)

4. Remove the air cleaner intake hose. (Refer to GROUP 15, 

Air Cleaner 

P.15-11

)

5. Remove the turbocharger compressor bracket. (Refer to 

GROUP 15, Exhaust Manifold and Turbocharger Assembly 

P.15-18

)

6. Disconnect the turbocharger water return hose and drain the 

coolant in the water jacket.

7. Remove the radiator condenser tank and drain the coolant.
8. Drain the coolant then clean the path of the coolant by 

injecting water into the radiator from the radiator cap area.

9. Connect the turbocharger water return hose.
10.Securely tighten the drain plug of the radiator.
11.Reinstall the radiator condenser tank.

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.By referring to the section on coolant, select an appropriate 

concentration for safe operating temperature within the 
range of 30 to 60%. Use special tool MB991871 to refill the 
engine coolant up to the top of the radiator port. A 
convenient mixture is a 50% water and 50% antifreeze 
solution [freezing point: −31° C (−23.8 ° F)].

Recommended antifreeze: Long Life Antifreeze 

Coolant or an equivalent

Quantity: 7.5 dm

3

 (7.9 quarts)

NOTE: For how to use special tool (MB991871), refer to its 
manufacturer’s instructions.

13.Tighten the radiator cap securely.
14.Remove the radiator condenser tank cap, and add the 

engine coolant up to the "FULL" line.

15.Turn the A/C switch to OFF position to start the engine and 

warm up until the cooling fan operates.
NOTE: This step opens the thermostat fully.

16.Rev the engine several times and then stop it. Check that 

there are no coolant leaks.

AC706501AC

Turbo charger 
air inlet fitting

Turbo charger 
water return hose

AC705466AC

MB991871

Air hose