2006 MITSUBISHI COLT ESP

GENERAL INFORMATION
ANTI-SKID BRAKE SYSTEM (ABS)35B-3
CONSTRUCTION DIAGRAM
AC400129AB1
2
3, 7 1
4
5
6
Name of partNumberOutline of function
SensorWheel speed sensor1Sends alternating current signals at frequencies which are
proportional to the rotation speeds of each wheel to the
ABS-ECU.
Stop lamp switch2Sends a signal to the ABS-ECU to indicate whether the
brake pedal is depressed or not.
ActuatorHydraulic unit3Drives the solenoid valves according to signals from the
ABS-ECU in order to control the brake hydraulic pressure
for each wheel.
ABS warning lamp4Illuminates in response to signals from the ABS-ECU
when a problem develops in the system.
Brake warning lamp5Illuminates in response to signals from the ABS-ECU
when a problem develops in the EBD system.
Diagnosis connector6Outputs the diagnosis codes and allows communication
with the M.U.T.-III.
ABS-ECU7Controls actuators (described above) based on the signals
coming from each sensor.
Controls the self-diagnosis and fail-safe functions.
Controls the diagnostic function (M.U.T.-III compatible).

GENERAL INFORMATION
HEATER, AIR CONDITIONER AND VENTILATION55-2
GENERAL INFORMATION
M2551000100759
For the heater and A/C system, the heater, the
blower and the cooling unit are integrated as one unit
to reduce weight and size. For A/C system, the man
-
ual A/C has been adopted.
FEATURES
IMPROVEMENTS IN COMFORT
•Adoption of low noise, large air volume heater
and A/C system
•Adoption of smaller air intake box for larger pas-
senger leg space.
•Optimising the areas of the outside air induction
hole and the air outlet improves ventilation per
-
formance as well as the quietness of the room
•Adoption of clean air filter with deodorant function
for cleaner air in the compartment.
IMPROVEMENTS IN OPERATION
PERFORMANCE
•Inside/outside air selection switch has been
changed to a pushbutton switch.
•Improved operation ability by the enlarged tab on
the dial knob
•Air amount and temperature only are controlled
automatically for easier operation. automatic A/C>
RELIABLE VISUAL FIELD
(IMPROVEMENT IN SAFETY)
•Current type defroster nozzle has been adopted
to improve defogging performance (Shortens
windshield fogging time).
•Defroster vents have been integrated to secure
better defogging pattern.
•Black coin drop prevention ribs are used on the
defroster to prevent its reflection on the wind
-
shield, providing sufficient field of vision for safety
IMPROVEMENTS IN FUEL ECONOMY
•Wider condenser area reduces load to the A/C
and improves fuel consumption.
•Energy conservation control using outside air
temperature sensor is adopted for vehicles with
manual A/C as well.
•A small-size, highly-efficient compressor has
been adopted.
•Simpler wiring and weight reduction are achieved
by installation of CAN communication system
GLOBAL ENVIRONMENT PROTECTION
Adoption of HFC134a for refrigerant.
IMPROVEMENTS IN SERVICE QUALITY
•Reduction of refrigerant gas leakage and
improvement in serviceability by incorporating
condenser and receiver
•The layout of refrigerant line for better workability
is adopted.
RESPONSIBILITY IMPROVEMENT
Reliable information transmission is achieved by
connecting A/C-ECU and each ECU via CAN com
-
munication.

EXHAUST SYSTEM
INTAKE AND EXHAUST15-6
TURBOCHARGER <4G1>
M2150009000123
AK402141
Cons id ering the ba lance among t he eng ine o u tput,
the response and
the amount of the exha ust g a ses,
the opt
imized size is used .

BASE ENGINE
ENGINE MECHANICAL <4G1>11B-3
BASE ENGINE
M2112001000886
CYLINDER HEAD GASKET
AK402138
A
AC
AA-A
To co rrespo nd wi th the imp r ove d o u t put pe rfo r ma nce
by emplo
y in g the t u rbocharger , a three layer me t a l
gasket is used.
CYLINDER BLOCK
AK402048AC
Oil jet
The cylinder bl ock has the oil jet fitted o n the main
bearin
g among th e cylin ders in ord e r to make the
pist
on cool. T he oil is injecte d from the o il g r oove of
the main b
earin g when th e oil pressure is 2kg/ cm
2 or
more.

BASE ENGINE
ENGINE MECHANICAL <4G1>11B-4
PISTON
AK403411
Frontview
Under view
A-AB -B
A
A B
B
AB
T
o co rrespo nd wi th the imp r ove d o u t put pe rfo r ma nce
by emplo
y in g the t u rbocharger , the strength is
imp
r oved in th e piston b ody .
PISTON PIN
AK403412
56
Ø8
Ø18
23.523.5 9
AB
T o co rrespo nd wi th the imp r ove d o u t put pe rfo r ma nce
by emplo
y in g the t u rbocharger , the strength is
imp
r oved in th e piston p i n.

BASE ENGINE
ENGINE MECHANICAL <4A9>11A-13
VALVE MECHANISM
AK305076AB
Exhaust valveIntake valve
Exhaust camshaft
Intake camshaft
Spark plug guide
Valve tappet
The valve mechanism is based on a 4-va lve DOHC
(Do
uble Over Head Camsha f t ) d e sign having the
camshaf
t on the u pper valve. Each cylin der has 2
int
a ke valves and 2 exh aust valves, arrang ed in a
V
- shape p a ttern.Camsh a f t rot a tion is transmitte d via va lve t a ppet s to
the respective
valves which ope n and close accord
-
ingly.
VALV E
AK305078
d
d
DD
L
Intake
Exhaust
L
AB
The valves ha ve h eat-resist an ce. Th e entire valve
surface is trea
ted with gas nitriding.ItemIntake valveExhaust valve
Head diameter
mm30.525.5
Stem diameter
mm5.05.0
Overall length
mm89.6190.94

BASE ENGINE
ENGINE MECHANICAL <4A9>11A-29
VALVE MECHANISM
AK305076AB
Exhaust valveIntake valve
Exhaust camshaft
Intake camshaft
Spark plug guide
Valve tappet
The valve mechanism is based on a 4-va lve DOHC
(Do
uble Over Head Camsha f t ) d e sign having the
camshaf
t on the u pper valve. Each cylin der has 2
int
a ke valves and 2 exh aust valves, arrang ed in a
V
- shape p a ttern.Camsh a f t rot a tion is transmitte d via va lve t a ppet s to
the respective
valves which ope n and close accord
-
ingly.
VALV E
AK305078
d
d
DD
L
Intake
Exhaust
L
AB
The valves ha ve h eat-resist an ce. Th e entire valve
surface is trea
ted with gas nitriding.ItemIntake valveExhaust valve
Head diameter
mm30.525.5
Stem diameter
mm5.05.0
Overall length
mm89.6190.94

GENERAL INFORMATION
ENGINE LUBRICATION12-3
LUBRICATION SYSTEM SCHEMATIC<4G1>
AK402151AC
Oil screen
Oil pump
Oil filter
Relief valve
Cylinder block
oil passage
(main gallery)Crankshaft
journal
Exhaust camshaft
journal
Oil pan Oil pressure switch
Cylinder head
oil passage
No.1 Camshaft
journal
Intake camshaft
journal Crankshaft pin
PistonOil jet
Oil cooler
Turbo charger
Lash adjuster Cam
To correspond with the impr oved engine outp u t per-
formance b y emplo y ing the tu rboch a rger , the oil
cooler and
the oil jet are u s ed for 4GI engine.