Mitsubishi Evolution X. Manual - part 67

TECHNICAL FEATURES

TSB Revision

GENERAL

00-18

The front and rear structures to absorb high energy,
and the highly tough cabin structure is adopted to
reduce the risk of passenger injuries at front-, rear-,
and side-impact collisions, secure the space for life
protection, and facilitate rescuing passengers. The
structures also have the following features:

1. The crush box structure, which has an octagonal

cross-section at the front end of the front side-
member, has been adopted. This structure can
effectively absorb energy upon frontal impact and
reduces the vehicle repair cost caused by a light
collision.

2. The front sidemember structure is changed to a

straight frame structure with an octagonal cross
section in order to improve the frontal collision
characteristics.

3. The front frame structure is supported in three

directions by the dash crossmember center, dash
crossmember lower, and front sidemember rear
in order to improve the frontal collision character-
istics, and increase the vehicle body rigidity.

4. An annular structure has been used for the side

structure reinforcement to improve collision
safety and vehicle body rigidity.

5. The impact absorbing opening on the cowl top

outer reinforcement upper has been added to effi-
ciently absorb energy upon impact and improve
the pedestrian protection capability.

6. The padding structure of front fender bracket is

adopted to have a crushable structure that effi-
ciently absorbs energy upon impact, improving
the pedestrian protection capability.

AB700983AB

View B

Section A - A

Cowl top
panel outer

Cowl top outer
reinforcement upper

Crush box

Front fender

Front fender
bracket

Dash
crossmember
center

Dash
crossmember
lower

Front
sidemember
rear

View C

Section D - D

Impact-absorbing hole

TECHNICAL FEATURES

TSB Revision

GENERAL

00-19

SRS AIR BAGS/PRE-TENSIONER

CAUTION

• Driver’s and passenger’s (front) air bags,

knee air bag and seat belt pre-tensioner
deploy and operate in frontal collisions that
exceed the threshold to activate the SRS
(Supplemental Restraint System).

• The front air bag deploys when a vehicle col-

lides head-on with a concrete (fixed) wall at
approximately 25 km/h (15 mph) or more, or
when a vehicle suffers a severe impact from
the front side. The side air bag deploys when
a center of side body suffers a severe impact.

• The front air bags and pre-tensioner may not

work under the following conditions:

• A frontal collision is less than the specific

value.

• The collision is from the rear
• The collision is from the side
• The vehicle rolls over or is in a similar

position.

• The side-airbags and curtain air bags may not

work under the following conditions:

• The collision is from the front
• The collision is from the rear

• Driver's and passenger's (front) air bags, side-air-

bags, knee air bag, curtain air bags and seat
belts with pre-tensioner have been installed to all
the vehicles as standard.

• The SRS is a system that is effective with the

seat belt fastened, and it is designed as a supple-
mental system of the seat belt.

• The advanced air bag system has been adopted

to the driver's and passenger's (front) sides.
When a frontal impact exceeds the threshold
upon a frontal collision, or depending on the seat
position (driver's seat side), the air bag inflates
the cushion air bag in two stages, improving the
protection for the front seat passengers.

• When a frontal impact exceeds the threshold, the

knee air bag is instantaneously inflated to protect
the passenger's feet (knee and leg).

AC709183

Driver's air bag

Passenger's (front) air bag

Side-airbag

Curtain air bag

Seat belt with
pre-tensioner

Knee air bag

TECHNICAL FEATURES

TSB Revision

GENERAL

00-20

• The side-airbag is activated when an impact

exceeds the threshold upon a side collision, and
the cushion air bag is instantaneously inflated to
protect the chest area of the front seat passen-
gers.

• The curtain air bag is activated simultaneously

with the side-airbag upon a side collision to pro-
tect the heads of the front seat and second seat
passengers.

• For the inflator, the gas which is harmless to the

human body has been adopted.

• The seat belt pre-tensioner is activated simulta-

neously with the deployment of driver's and pas-
senger's (front) air bags in case of a frontal
collision. Seat belts are pulled in to eliminate the
slack upon a collision, thus improving the initial
occupant restraint, and reducing the travel dis-
tance of the occupants.

IMMOBILIZER FUNCTION

The immobilizer function prevents the engine from
starting and immobilizes the vehicle if a key other
than the key registered for that vehicle is used in an
attempt to start the engine after forced entry.

ENVIRONMENTAL PROTECTION

M2000027000677

IMPROVEMENT ON RECYCLING
EFFICIENCY

Thermoplastic resin, which dissolves in liquid by
heating and can be remolded (recycled) easily, is
actively used, and the multilayer materials are inte-
grated to thermoplastic resin, achieving an
easy-to-disassemble structure.

AC507888

Transponder

Ignition key

WCM

ETACS-ECU

Engine-ECU

Ignition

Injection

CPU

CAN

CAN-B

CAN-C

CAN

CPU

Steering lock

Classification

Main contents

Components made
of recycled
materials

Chip materials produced during manufacturing process are reused for the following
components: Bumper, radiator grille, instrument panel, and interior trims.
Other industrial waste materials are reused for the following components: Dash panel
pad, roof pad (vehicles without sunroof), and floor carpet.

Components made
of materials which
can be easily
recycled

Thermoplastic resin is used for the following components: Bumper, radiator grille,
instrument panel, and interior trims.
Thermoplastic resin has been used for all the materials for floor carpet.

TECHNICAL FEATURES

TSB Revision

GENERAL

00-21

REDUCTION OF MATERIAL BURDEN ON
ENVIRONMENT

Lead-free materials are used for the radiator, fuel
tank, wheel balance weight, and rubber parts.

SERVICEABILITY AND RELIABILITY

M2000028000885

SUNROOF <OPTIONAL>

Item

Main contents

Elimination of
environmental
burden materials

Lead-free materials are used for the following components: Fuel tank, radiator, glass
ceramic print, heater core, wheel balance weight, electrode position paint, battery
cable terminals, and wiring harness.
Hexavalent chromium-free anti-rust treatment is applied to bolts, nuts, and metal parts.

Prevention of
ozone layer
depletion

Air conditioning filled with new refrigerant (HFC 134a) is installed.

Prevention of air
pollution

Employment of a metal cylinder head gasket reduces the volume of incomplete
combustion generated between the cylinder block and cylinder head, and suppresses
the level of unburned hydrocarbon (HC).
Organic solvent drainage amount is reduced by reducing the solvent level in top coat
of the body coating process.

AC705682AC

Sunroof lid glass

Sunshade

Sunroof motor assembly
(integrated into sunroof ECU)

Drain pipe

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