Mitsubishi Evolution X. Manual - part 159

35A-1

GROUP 35A

BASIC BRAKE 

SYSTEM

CONTENTS

GENERAL DESCRIPTION. . . . . . . . .

35A-2

CONSTRUCTION DESCRIPTION . . .

35A-4

BRAKE BOOSTER . . . . . . . . . . . . . . . . . . . 

35A-4

BRAKE PEDAL . . . . . . . . . . . . . . . . . . . . . . 

35A-4

BRAKE  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

35A-6

GENERAL DESCRIPTION

TSB Revision

BASIC BRAKE SYSTEM

35A-2

GENERAL DESCRIPTION

M2350000101238

The brake system has high reliability and durability, 
and provides an exceptional braking performance.

FEATURES

.

IMPROVED BRAKING PERFORMANCE

• In addition to the 10-inch through bolt type single 

brake booster, the small and long stroke-type 
master cylinder is adopted to provide rigidity, to 
reduce weight, and to secure the assist force.

• Brembo™ 18-inch 4-pot front ventilated disk 

brakes and Brembo

™ 17-inch 2-pot rear venti-

lated disk brakes are adopted to provide stable 
braking force and improved braking feel.

• To the front, two-piece structure brake disk is 

installed. <GSR: Option, MR: Standard>

.

IMPROVED STABILITY

• Front- and rear-wheel X-type brake line layout is 

used.

• The brake pedal retreat suppression mechanism 

that suppresses the retraction of brake pedal sur-
face upon a frontal collision is adopted.

• To the front brake and rear brake, the brake pads 

with audible wear indicator are adopted which 
warn the driver of the wear limit.

CONSTRUCTION DIAGRAM

AC708805AB

Brake booster

Master cylinder

Front disc brake

Reserve tank

Rear disc brake

Brake pedal

Hydraulic unit

GENERAL DESCRIPTION

TSB Revision

BASIC BRAKE SYSTEM

35A-3

SPECIFICATIONS

Item

Specification

Master 
cylinder

Type

Tandem type

I.D. mm (in)

23.81 (0.94)

Brake 
booster

Type

Vacuum type, single

Effective dia. of power cylinder mm (in)

252 (10)

Boosting ratio

5.5 {Pedal depression force: 663 N (149 lb)}

Front brakes Type (Disk brake nomenclature)

Brembo

™ 4-opposed-piston ventilated disk 

(V8-Z4046)

Disk effective dia 

× thickness mm (in)

294 

× 32 (11.6 × 1.3)

Cylinder I.D. mm (in)

40.0 (1.58) 

× 2, 46.0 (1.81) × 2

Brake pad thickness mm (in)

9.85 (0.39)

Clearance adjustment

Automatic adjustment

Rear brakes Type (Disk brake nomenclature)

Brembo

™ 2-opposed-piston ventilated disk 

(V7-X40)

Disk effective dia 

× thickness mm (in)

278 

× 22 (10.9 × 0.9)

Cylinder I.D. mm (in)

40.0 (1.58) 

× 2

Brake pad thickness mm (in)

9.0 (0.35)

Clearance adjustment

Automatic adjustment

Brake fluid

DOT3 or DOT4

CONSTRUCTION DESCRIPTION

TSB Revision

BASIC BRAKE SYSTEM

35A-4

CONSTRUCTION DESCRIPTION

BRAKE BOOSTER

M2350002000892

10-inch through bolt type single brake booster is 
installed.
With the brake booster, two through bolts are used to 
improve surface rigidity of the booster. The master 
cylinder and brake pedal are mounted to each end of 
the bolt. When the brake pedal is depressed force-
fully, the forward movement of master cylinder 
assembly is suppressed, improving brake feeling.

BRAKE PEDAL

M2350007000488

BRAKE PEDAL PAD

The aluminum pedal pad has been adopted to the 
brake pedal in order to enhance the sporty image.

AC704185

AC708806AB

A

A

Section A-A

Section A-A

Section A-A

Through bolt

AC708807

<M/T>

<TC-SST>

AB