service MITSUBISHI LANCER EVOLUTION 2007 Service Repair Manual

HEATER, AIR CONDITIONER AND VENTILATION–On-vehicle Service55-24
IDLE-UP OPERATION CHECK
1. Set the vehicle in the pre-inspection condition:
Engine coolant temperature: 80 – 90_C
Lamps, electric cooling fan and all accessories: OFF
2. Check that the idle speed is within the standard value.
Standard value: 850±50 r/min
NOTE
The idle speed is controlled by the ISC system and should
not be adjusted.
3. The idle speed should be within the standard value when
the A/C switch is turned on and the A/C is operating.
Standard value:
850±50 r/min

HeaterControlAssembly
(A/C-ECU) and A/C Switch HEATER, AIR CONDITIONER AND VENTILATION-55-25
HEATER CONTROL ASSEMBLY (A/C-ECU) AND A/C SWITCH
REMOVAL AND INSTALLATION
1
2
5
67 4
3
Removal steps
"BA1. Air mix door cable connection
"AA2. Blow vent switching damper cable con-
nection
3. Temperature adjustment knob4. Air volume adjustment knob
5. Blow vent switching knob
6. Center panel
7. Control panel assembly
INSTALLATION SERVICE POINTS
"AABLOW VENT SWITCHING DAMPER CABLE
CONNECTION
1. Set the heater control assembly’s blow vent switching
knob to the DEF position.
2. Set the heater unit’s blow vent switching damper lever
to the DEF position (turn the damper lever as the left
sketch.) and install the cable.
3. Set the I type postion of cable to the heater unit case
and secure with a clip.Mold locator
Blow vent
switching
damper lever
DEF position
<R.H. drive vehicles>
Blow vent switching
damper lever
<L.H. drive vehicles>
Mold locator
DEF position

HeaterControlAssembly
(A/C-ECU) and A/C Switch HEATER, AIR CONDITIONER AND VENTILATION-55-27
DISASSEMBLY AND REASSEMBLY
1 2
5 67 8 3
4
Disassembly steps
1. Switch panel
2. Rear window defogger switch
3. Air conditioner switch
4. Inside/outside air changeover switch
AA"5. Blow vent changeover damper cableAA"6. Air mix damper cable
7. Blower switch assembly
8. Manual air conditioner control panel
(A/C-ECU)
ASSEMBLY SERVICE POINTS
AA"BLOW VENT CHANGEOVER DAMPER CABLE
AND AIR MIX DAMPER CABLE REMOVAL
Insert a flat-tipped screwdriver into the clip through the inside
of the control base and prise out the clip claw to disconnect
the cables.
Clip
claw
(–) flat-tipped
screwdriver

HEATER, AIR CONDITIONER AND VENTILATION-Heater Unit and Blower Assembly55-28
HEATER UNIT AND BLOWER ASSEMBLY
REMOVAL AND INSTALLATION
Pre-removal and Post-installation Operations
DRefrigerant Draining and Refilling (Refer to P.55-16, 19.)
DCoolant Draining and Refilling (Refer to GROUP 14 – On - vehicle Service.)
DInstrument Panel Removal and Installation (Refer to GROUP 52A – Instrument Panel.)
DFront Seat Removal and Installation (Refer to GROUP 52A – Front Seat.)
DFloor Console Removal and Installation (Refer to GROUP 52A – Floor Console.)
DFloor Carpet Removal and Installation
13
5 6
2
12±2 N·m
- Pipe coupling
O-ring
A/C compressor oil:
SUN PAG 56
4, 5
9
7
4
8
Heater unit and blower assembly
removal steps
1. Steering shaft attachment bolt
2. Front deck crossmember
3. Heater hose connection
AA"4. Suction pipe connectionAA"5. Liquid pipe B connection
6. Center duct
7. Heater unit
8. Intake duct
9. Blower assembly
REMOVAL SERVICE POINTS
AA"SUCTION PIPE AND LIQUID PIPE B
DISCONNECTION
To prevent the entry of dust or other foreign bodies, plug
the dismantled hose and the nipples of the expansion valves.
Caution
As the compressor oil and receiver are highly moisture
absorbent, use a non-porous material to plug the hose
and nipples.

Resister, Blower Motor, Inside/outside
Air Changeover Damper MotorHEATER, AIR CONDITIONER AND VENTILATION-55-32
RESISTER, BLOWER MOTOR AND INSIDE/OUTSIDE AIR CHANGE
OVER DAMPER MOTOR
REMOVAL AND INSTALLATION
12
3
Resister removal steps
DGlove box (Refer to GROUP 52A –
Instrument Panel.)
DEngine-ECU (Refer to GROUP 14.)
1. Resister
Blower motor removal steps
AA"2. Blower motorInside/outside air changeover
damper motor removal steps
DGlove box (Refer to GROUP 52A –
Instrument Panel.)
DEngine-ECU (Refer to GROUP 14.)
3. Inside/outside air changeover damper
motor
REMOVAL SERVICE POINTS
AA"BLOWER MOTOR REMOVAL
NOTE
Use of commercially available offset screw driver is
recommended.

HEATER, AIR CONDITIONER AND VENTILATION-Evaporator and Air Thermo Sensor55-34
EVAPORATOR AND AIR THERMO SENSOR
REMOVAL AND INSTALLATION
Pre-removal and Post-installation Operations
DRefrigerant Draining and Refilling (Refer to P.55-16, 19.)
1 2
3
4
56
7 8
12±2 N·m
- Pipe coupling
O-ring
A/C compressor oil:
SUN PAG 56
1, 2
9
Disassembly steps
DGlove box (Refer to GROUP 52A –
Instrument Panel.)
DEngine-ECU (Refer to GROUP 14.)
AA"1. Suction pipe connection
AA"2. Liquid pipe B connection
AA"3. Expansion valve4. Expansion valve adapter
5. Joint duct
6. Evaporator cover
AB""AA7. Evaporator
8. Air thermo sensor clip
9. Air thermo sensor
REMOVAL SERVICE POINTS
AA"WHEN DISCONNECTING THE SUCTION PIPE,
LIQUID PIPE B, AND THE EXPANSION VALVE
To prevent the entry of dust or other foreign bodies, plug
the dismantled hose and the nipples of the expansion valves.
Caution
As the compressor oil and receiver are highly moisture
absorbent, use a non-porous material to plug the hose
and nipples.

HEATER, AIR CONDITIONER AND VENTILATION-Evaporator, Air Thermo Sensor55-35
AB"EVAPORATOR REMOVAL
<R.H. DRIVE VHEICLESE>
1. When removing the evaporator, cut and fold back the
dashboard pad as in the diagram. (The thickness of the
pad interferes with the removal of the evaporator.)
2. Remove the evaporator.
Caution:
Do not cut the upper side of the pad.
INSTALLATION SERVICE POINTS
"AAEVAPORATOR INSTALLATION
After installing the evaporator, glue the cut dashboard panel
pad with an adhesive agent.
INSPECTION
Air thermo sensor inspection
Measure the resistance between connector terminals 4 and
5 under at least two different temperatures. The resistance
values should generally match those in the graph.
NOTE
The temperature at the check should not exceed the range
in the graph.
Blower unit
Dashboard pad
Resistance
(kΩ)
Temperature(_C) 20
15
10
5
0
-10 0 1040
30
20
25

HEATER, AIR CONDITIONER AND VENTILATION-Compressor55-36
COMPRESSOR
REMOVAL AND INSTALLATION
Before Removal
Refrigerant Draining (Refer to P.55-19.)After Removal
DRefrigerant Replenishing (Refer to P.55-16.)
DDrive Belt Tension Check (Refer to GROUP
11A – Engine Adjustment.)
25±4
N·m
2 4
1
- Pipe coupling
O ring
A/C compressor oil:
SUN PAG 56
1, 2
5
3
Removal steps
AA"1. Flexible suction hose connection
AA"2. Flexible discharge hose connection
AB"3. Drive beltAC""AA4. Compressor
5. Compressor bracket
REMOVAL SERVICE POINTS
AA"DISCONNECTION OF FLEXIBLE SUCTION HOSE
AND FLEXIBLE DISCHARGE HOSE
To prevent the entry of dust or other foreign bodies, plug
the dismantled hoses and compressor nipples.
Caution
As the compressor oil and receiver are highly moisture
absorbent, use a non-porous material to plug the hose
and nipples.

HEATER, AIR CONDITIONER AND VENTILATION-Compressor55-37
AB"DRIVE BELT REMOVAL
Due to the adoption of the Serpentine drive system with the
automatic tensioner, the following operation is required for
removing the drive belt:
1. Insert the 12.7sq. spinner handle into the tool hole of
the automatic tensioner and rotate it counterclockwise
until the automatic tensioner reaches to the stopper.
2. Align hole A with hole B for fixing by inserting the
L - shaped hexagon wrench, then remove the drive
belt.
Caution
When the drive belt is reused, use a chalk to indicate
an arrow of rotation direction on the back of the belt
so that it can be re - assembled in the same direction
as before.
AC"COMPRESSOR REMOVAL
Take care not to spill any compressor oil when removing
the compressor.
INSTALLATION SERVICE POINTS
"AACOMPRESSOR INSTALLATION
When installing a new compressor, first adjust the oil level
as follows.
1. Measure the oil in the compressor you removed.
(X cm
3)
2. Drain the amount of oil calculated by the following formula
from the new compressor. Now install the compressor.
130 cm
3–Xcm3=Ycm3
NOTE
(1) 130 cm3indicates the amount of oil sealed in the
new compressor at the factory.
(2) Y cm
3indicates the amount of oil in the refrigerant
line, compressor, and cooling unit.
INSPECTION
Compressor Magnetic Clutch Operation Check
Connect the compressor connector terminal to the battery
positive (+) terminal and ground the battery’s negative ( - )
terminal to the compressor unit. At that time, the magnetic
clutch should make a definite operating sound.
Hole A
L-shaped
hexagon
wrench
Hole B

HEATER, AIR CONDITIONER AND VENTILATION-CompressorHEATER, AIR CONDITIONER AND VENTILATION-Compressor55-38
DISASSEMBLY AND REASSEMBLY
1 2
3
4
5
6
16±1 N·m
9
7
8
Cooling temperature switch
dismantling steps
1. Snap ring
2. Cooling temperature switch
Magnetic clutch dismantling
procedure
"DADAir gap adjustmentAA""CA3. Self-locking nut
4. Armature
5. Shim
"BA6. Snap ring
7. Rotor
8. Snap ring
"AA9. Field core
ASSEMBLY SERVICE POINT
AA"DISMANTLING OF SELF-LOCKING NUT
ASSEMBLY SERVICE POINTS
"AAFIELD CORE ATTACHMENT
Line up the pin hole on the compressor unit with the field
core projection and attach.
MB991386
MB991367
Compressor
unit pin hole
Field core projection