Mitsubishi Galant (2004+). Manual - part 1694

BRAKE BOOSTER

BASIC BRAKE SYSTEM

35A-5

BRAKE BOOSTER

M2350002000245

To improve the braking performance, an 8 + 9-inch 
tandem-type brake booster is used on all models. 
The tandem type brake booster uses two dia-
phragms to double the power effect resulting from 
the pressure difference between atmospheric pres-
sure and negative pressure. It ensures an aug-
mented brake boosting power without increasing the 
outside diameter.

AC305423AB

REAR DIAPHRAGM

FRONT DIAPHRAGM

PUSH ROD

DIAPHRAGM RETURN SPRING

OPERATING ROD

ATMOSPHERIC CHAMBER

FRONT BRAKE

BASIC BRAKE SYSTEM

35A-6

FRONT BRAKE

M2350003000215

Brakes with the following specifications have been 
adopted for the front brakes.

•

V5-S60 1-piston ventilated discs <2.4L engine>

•

V6-S60 1-piston ventilated discs <3.8L engine>

•

An outer disc method in which the wheels and 
discs are tightened together eases brake disc 
removal and installation.

•

The brake pads are equipped with mechani-
cal-type audible wear indicators to notify the 
driver when the usage limit [2 mm (0.08 inch)] 
has been reached.

DISC BRAKE NOMENCLATURE

AC305988

AB

NORMAL

AT WEAR LIMIT

PAD

WEAR INDICATOR

BRAKE DISC

V  6  -  S  60

1        2               3           4

AC305473

NO. ITEM

CONTENT

1

Brake disc type

V: Ventilated

2

Brake size (Minimum 
applicable disc 
wheel)

5: 15-inch
6: 16-inch

3

No. of pistons

S: 1 pistons (floating 
type)

4

Piston size (rounded 
to nearest integer)

60: 

φ

60.33 mm (2.38 

in)

REAR BRAKE

BASIC BRAKE SYSTEM

35A-7

REAR BRAKE

M2350004000229

Brakes with the following specifications have been 
adopted for the rear brakes.

•

S4-S35 1-piston solid discs

•

An outer disc method in which the wheels and 
discs are tightened together eases improve the 
ease of brake disc removal and installation.

•

The brake pads are equipped with mechani-
cal-type audible wear indicators to notify the 
driver when the usage limit [2 mm (0.08 inch)] 
has been reached.

DISC BRAKE NOMENCLATURE

AC305989

AB

NORMAL

AT WEAR LIMIT

PAD

WEAR INDICATOR

BRAKE DISC

S  4  -  S  35

1        2               3          4

AC305474

NO. ITEM

CONTENT

1

Brake disc type

S: Solid

2

Brake size (Minimum 
applicable disc 
wheel)

4: 14-inch

3

No. of pistons

S: 1 piston (floating 
type)

4

Piston size (rounded 
to nearest integer)

35: 

φ

34.93 mm (1.38 

in)

BRAKE LINE

BASIC BRAKE SYSTEM

35A-8

BRAKE LINE

M2350005000169

PROPORTIONING VALVE <VEHICLES WITHOUT ABS>

A proportioning valve has been adopted to prevent 
early locking of the rear wheels, in order to provide 
improved stability during braking.

In terms of operation, the system is basically the 
same as the 2002 LANCER.

AC305401AB

FROM MASTER CYLINDER REAR BRAKE SYSTEM

TO REAR BRAKE

O-RING

U-PACKING

SLEEVE

GUIDE

SEAL

SPRING

PLATE

VALVE