suspension MITSUBISHI COLT 2006 Service Repair Manual

GROUP 34
REAR SUSPENSION
CONTENTS
GENERAL INFORMATION . . . . . . . .34-2

GENERAL INFORMATION
REAR SUSPENSION34-2
GENERAL INFORMATION
M2340000100825
Newly developed H-shaped torsion beam type sus-
pension has been introduced.
•The coil spring is installed under the rear floor,
the torsion beam and arm assembly is installed in
front of the spare tyre house, and the shock
absorber is installed outside, so that the large
cabin space is achieved.
•The arm bushing with the toe control function is
adopted to optimise the tyre steering angle using
the bushing deflection caused by lateral force
and longitudinal force generated at cornering, so
that the good cornering performance is secured.
•The layout of shock absorber is optimised for
smooth riding.
•Long wheel stroke secures sufficient road holding
quality.
•The hub-integrated unit bearing is adopted for the
wheel bearing for sufficient suspension rigidity
(Refer to GROUP 27, Rear Axle
P.27-2).
•The dumping characteristic of shock absorber
has been changed. <4G1>
•The urethane bump stopper has been adopted to
improve the linearity. <4G1>
•Torsion beam rigidity has been improved <4G1>
CONSTRUCTION DIAGRAM
AC405533AD
Coil spring
Shock absorber
Torsion beam and arm assembly
Arm bushing
Torsion bar
Section A – A
<4G9>
A
A Torsion beam and arm assembly
Section A – A
<4G1>
Torsion beam and arm assembly

GENERAL INFORMATION
REAR SUSPENSION34-3
SPECIFICATIONS
SUSPENSION SYSTEM
ItemSpecification
Suspension typeTorsion beam suspension
WHEEL ALIGNMENT
ItemSpecification
Camber−1°
Toe-inAt the centre of tyre tread mm3
Toe-angle (per wheel)0°09'
COIL SPRING
Item4A94G1
Wire diameter mm1011
Average outside diameter mm75 − 107 − 75111
Free length mm301283

GENERAL INFORMATION
BODY42-2
GENERAL INFORMATION
M2420000100842
FEATURES
WEIGHT REDUCTION AND HIGH RIGID-
ITY
•Application ranges of high tension steel plate,
antirust steel plate, and uneven thickness steel
plate have been expanded.
•The upper frame outer and front pillar connection
has been strengthened by adopting the upper
frame-to-front pillar brace.
•The radius of each opening corner for the doors
and tailgate has been enlarged.
•Cowl top lower panel and spring house panel are
directly joined for higher rigidity.
•Strut tower bar has been adopted <4G1>.
•A front suspension axle side plate has been
adopted <4G1>.
•The air outlet garnish has been installed to the
hood, improving the sporty image and cooling
efficiency in the engine compartment. <4G1>
REDUCTION OF VIBRATION, NOISE, AND
AERODYNAMIC NOISE
•Straight frame structure has been adopted.
•Curved front floor and uneven thickness steel
plate have been adopted.
•Rigidity of the suspension installation part has
been improved.
IMPROVEMENTS IN SAFETY
•RISE (Reinforced Impact Safety Evolution) has
been used for the main body.
•Features a side door beam to boost safety upon
side impact.
•Direct combination key cylinder and inside lock
cables for the front doors have been adopted to
improve safety upon impact.
IMPROVEMENTS IN OPERATION
QUALITY
•The central door locking system, which
locks/unlocks all the doors and the tailgate, is
adopted.
•"P" position shift linked door-unlock function has
been introduced to the central door locking sys
-
tem(F1C1A).
IMPROVEMENTS OF PRODUCT
PACKAGE AND APPEARANCE
•Rigidity of door sash bottom section has been
improved.
•By improving the engaging sound between the
door latch and striker, the door locking sound
quality has been enhanced.
•UV & heat protect glass has been used for the
windshield.
•UV-reducing glass has been used for the front
door window glasses and rear door window
glasses.
•Privacy glasses have been used for rear door
window glasses, quarter window glasses, and
tailgate window glass (Option).
•Multi-mode keyless entry system (with door mir-
ror retraction/return control function) has been
adopted.
•Protector film has been attached on side sill
.
•Sunroof has been installed (Option).

MAIN BODY
BODY42-7
DRIVING STABILITY
AB400932
AB400232AB400233
AB400213A
A
Cowl top lower panel
Spring house
panel
Corner of door opening
Corner of tailgate opening
AB
Section A – A1
2
2
4,5
3
Upper frame to
front pillar brace
Front upper
outer plate
Front upper
frame outer
Cowl top extension lower
1.
The cowl t op lo we r p a nel a nd the spring ho use
p a n e l h a ve be en dire ct ly inst alled , a n d th e rigidity
of the fro n t suspen sion inst allation area ha s b een
in creased, in orde r to improve han dling st ab ility .
2.In o r der to imp r ove h andling st a b ility , the radius
of t he ope ning corne r s for the do or and t a ilgate
has bee n enlarged t o increase rigidity of th e
frame connection s.
3.The cowl t op extension lower has bee n adde d to
the cowl t op p anel and d i rectly secured t o the
sp ring house p anel. This improves rigidity a t the
su spen sio n mo untin gs.
4.Driving st ability has bee n improved by jo ining the
fron t uppe r frame outer a nd the front p illar by the
upp er frame-to-fro nt pillar b r ace . (RALL I AR T V e r
-
sion-R)
5.Rigidity has been impr ove d at the suspension
mountings b y joining the front u pper fra m e ou ter
and the cowl top lower p a n e l by the t h icker fro n t
upp er oute r plat e.

MAIN BODY
BODY42-9
QUIETNESS
M2420004000416
AB201000
AB400213
12
3
2
AB
1.The sid e me mbers have bee n stra ighte ned fro m
the front to the rea r in o r der to r educe vibratio ns.
2.The cowl t op lo we r p a nel a nd the spring ho use
p anel of the front suspension h a ve b een direct ly
in st alled, an d an ab sorbe r rein forcement has
bee n adop ted for the rea r suspension . Conse
-
quently , rigid i ty of the suspension inst allation
area
is increase d , and incoming roa d noise is
redu
ced.
3.The front floor p an has b een curve d to suppress
vibration an d noise.
BODY COLOUR CHARTS
M24200050 0120 7
ColourColour codeColour numberColour name (Previous name)Composition
of film
WARM SILVERA17CMA10017Warm Silver MetallicMetallic
SILVERA19CMA10019Cool Silver MetallicMetallic
DARK GREYA72CMA10072Dark Bluish MicaPearl
PA L E B L U ET68CMT10068Pale Blue MetallicMetallic
PALE GREENF07CMF10007Pale Green MicaPearl
BLACKX24CMX10024Black Mica (Pyrenees Black)Pearl
WHITEW23CMW10023White PearlPearl
WHITEW32AC11032White Solid (Fairy White)Solid
REDP26CMP10026Red MetallicMetallic
YELLOWY05CMY10005Light Yellow PearlPearl
NOTE: For p a intin g , in ner p anel colours sho u ld b e similar to t he oute r p anel colours.

LOOSE PANELS <4G1>
BODY42-22
LOOSE PANELS <4G1>
M2420000200128
CONSTRUCTION DIAGRAM
AC601161
AC600974
AB
Front suspension axle side plateCrossmember

The fron
t suspension axle side plate h a s be en
adopte
d to improve crossmember inst allatio n rig i dit y .

GROUP 00
GENERAL
CONTENTS
HOW TO USE THIS MANUAL . . . . . .00-2
TARGETS OF DEVELOPMENT . . . .00-2
PRODUCT FEATURES . . . . . . . . . . .00-3
TECHNICAL FEATURES. . . . . . . . . .00-4
EXTERIOR . . . . . . . . . . . . . . . . . . . . . . . . . 00-4
INTERIOR . . . . . . . . . . . . . . . . . . . . . . . . . . 00-6
SPACIOUS CABIN . . . . . . . . . . . . . . . . . . . 00-8
ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . 00-9
TRANSMISSION . . . . . . . . . . . . . . . . . . . . . 00-10
SUSPENSION. . . . . . . . . . . . . . . . . . . . . . . 00-14
BRAKE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 00-15
STEERING . . . . . . . . . . . . . . . . . . . . . . . . . 00-18
ACTIVE SAFETY. . . . . . . . . . . . . . . . . . . . . 00-19
PASSIVE SAFETY . . . . . . . . . . . . . . . . . . . 00-24
EQUIPMENTS . . . . . . . . . . . . . . . . . . . . . . . 00-27
ENVIRONMENTAL PROTECTION . . . . . . . 00-28
SERVICEABILITY AND RELIABILITY . . . . 00-28
VEHICLE IDENTIFICATION . . . . . . . .00-30
MAJOR SPECIFICATIONS . . . . . . . .00-31
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 00-31
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 00-32

PRODUCT FEATURES
GENERAL00-3
PRODUCT FEATURES
M2000005000475

•COLT has been equipped with the new 1,500 mL
aluminium die-cast engine (4A9-engine) for fur
-
ther refinements of comfort driving, excellent
power performance, fuel economy, and ecology
performance.

•The body and suspension of COLT RALLIART
Version-R have been thoroughly tuned to
increase the 4G1-engine output which enables
dynamic driving.
•The robust image suited for the dynamic driving
has been adopted for the appearance.
SPORTY AND STYLISH DESIGN
•Bucket-like front seats sion-R>
•Sport seats exclusive to the models with turbo-
charger
•15-inch aluminium wheel
•High-contrast combination meter ART Version-R, LS, VR-X (M/T) >
•Robust appearance by new shaped front bumper
adaptation and rear bumper change Version-R>
•Black overfender
•16-inch aluminium wheel
ACTIVE DRIVING AND HIGH QUALITY
•For 4A9-engine, the aluminium die-cast cylinder
block has been installed for weight reduction of
the vehicle.
•For 4G1-engine, turbo-charger model has been
introduced to increase output and torque,
enhancing sporty image.
•Sporty driving has been ensured by the
"GETRAG" 5-speed manual transmission (floor
shift).
•The suspension has been tuned to improve cor-
nering and stability at high speed. Version-R>
•A strut tower bar has been adopted to improve
the body rigidity.
•Electric power steering system has been
improved and EPS-ECU has been additionally
equipped with the return control logic, resulting in
superior steering wheel return control and better
steering feel equal to or better than that for other
models with hydraulic power steering.

TECHNICAL FEATURES
GENERAL00-14
SUSPENSION
M2000023000460
AC405092AB

Lower arm
Front axle No.1
crossmember Stabilizer bar
Coil spring
Strut assembly
Front axle No.1
crossmember
Lower arm Strut assembly
Coil spring
Stabilizer bar
Shock absorber Coil spring
Torsion beam
and arm assembly
<4A9> <4G1>
•The
MacPherso n Strut suspe nsio n with comp ati-
ble characteristics of high rig idity and lig ht weight
has bee n adopted for the fron t suspension to
realise suf ficien t driving comfort.
•H-shaped to rsion bea m type suspe nsion has
bee n int roduced for t he rear suspension. This
suspe nsion has larg e suspen sion stro ke and pro
-
vides suf ficient driving comfort. With it s comp act
design , spe cio us interior sp ace has been
reserved.