Mazda X-5. Manual — part 58

CONVENTIONAL BRAKE SYSTEM

04–11–1

04–11

04–11

CONVENTIONAL BRAKE SYSTEM

CONVENTIONAL BRAKE SYSTEM

OUTLINE . . . . . . . . . . . . . . . . . . . . . . . . 04–11–1

CONVENTIONAL BRAKE SYSTEM

STRUCTURAL VIEW . . . . . . . . . . . . . . 04–11–1

INTRUSION-MINIMIZING BRAKE

PEDAL FUNCTION . . . . . . . . . . . . . . . . 04–11–2

INTRUSION-MINIMIZING BRAKE

PEDAL OPERATION . . . . . . . . . . . . . . . 04–11–2

MASTER CYLINDER

CONSTRUCTION . . . . . . . . . . . . . . . . . . 04–11–2

POWER BRAKE UNIT

CONSTRUCTION . . . . . . . . . . . . . . . . . . 04–11–3

FRONT BRAKE (DISC)

CONSTRUCTION . . . . . . . . . . . . . . . . . . 04–11–3

REAR BRAKE (DISC)

CONSTRUCTION . . . . . . . . . . . . . . . . . . 04–11–3

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CONVENTIONAL BRAKE SYSTEM OUTLINE

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• A brake pedal with an intrusion minimizing mechanism has been adopted. As a result, driver safety has been

improved.

• A plunger-type master cylinder has been adopted, improving durability and response.

• A large diameter, single diaphragm power brake unit has been adopted, improving braking force.

• A large diameter, ventilated disc-type front brake has been adopted, improving braking force.

• A large diameter, solid disc-type rear brake has been adopted, improving braking force.

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CONVENTIONAL BRAKE SYSTEM STRUCTURAL VIEW

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WITH ABS

WITH DSC

FRONT BRAKE (DISC)

REAR BRAKE (DISC)

BRAKE PEDAL

POWER BRAKE UNIT

MASTER CYLINDER

DUAL PROPORTIONING VALVE
(WITHOUT ABS/DSC)

E5U411ZS5001

CONVENTIONAL BRAKE SYSTEM

04–11–2

INTRUSION-MINIMIZING BRAKE PEDAL FUNCTION

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• An intrusion-minimizing brake pedal, which minimizes the amount of rearward pedal thrust in a frontal collision,

has been adopted. Due to this, impact force to the lower body of the driver is softened.

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INTRUSION-MINIMIZING BRAKE PEDAL OPERATION

E5U041143300N02

• In a frontal collision, the brake pedal is forced rearward by the movement of the engine and other parts.

• Brackets A and B break away from bracket C, which is fixed to the body.

• Bracket B is freed allowing it and the pedal arm to rotate together at pivot fulcrum D of bracket A, thereby

preventing the rearward movement of the brake pedal.

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MASTER CYLINDER CONSTRUCTION

E5U041143400N01

• A plunger-type master cylinder with a 22.2 mm

{0.87 in} bore has been adopted, improving
durability.

Note

• Plunger type: A system where the cups are

fixed on the cylinder, and the piston slides
through the inner perimeter of the cups.

• For vehicles with DSC, the master cylinder outlet

pipe diameter has been increased, improving
response during DSC operation.

• Except for the reservoir, the master cylinder

cannot be disassembled. Therefore, if there is any
malfunction in the interior of the master cylinder, replace the cylinder component without disassembling.

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BRACKET C

BRACKET B

FULCRUM D

PEDAL ARM

BRACKET A

NORMAL CONDITION

DURING COLLISION

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E5U411ZS5003

CONVENTIONAL BRAKE SYSTEM

04–11–3

04–11

POWER BRAKE UNIT CONSTRUCTION

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• A 9-inch, large diameter, single diaphragm type

power brake unit has been adopted for all models,
achieving compatibility between high braking
performance and excellent brake feeling.

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FRONT BRAKE (DISC) CONSTRUCTION

E5U041133980N01

• Large diameter, ventilated disc type front brakes

with a 290 mm {11.4 in} diameter and 22 mm
{0.87 in} thickness have been adopted for all
models, improving braking force and fade
resistance.

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REAR BRAKE (DISC) CONSTRUCTION

E5U041126980N01

• A large diameter, solid disc type rear brake with a

280 mm {11.0 in} diameter and 10 mm {0.39 in}
thickness has been adopted for all models,
improving braking force and fade resistance.

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E5U411ZS5004

E5U411ZS5005

E5U411ZS5006