Subaru BRZ (2012 year). Manual - part 38

PM-81

Brake Line

PERIODIC MAINTENANCE SERVICES

3. BRAKE SERVO SYSTEM

1) With the engine off, depress the brake pedal several times applying the same pedal force. Check that the

travel distance should not change.

2) With the brake pedal depressed, start the engine. Check that the pedal moves slightly toward the floor.

3) With the brake pedal depressed, stop the engine and keep the pedal depressed for 30 seconds. Check

that the pedal height does not change.

4) A check valve is built into the vacuum hose. Remove the vacuum hose to inspect function of check valve.

5) Check the vacuum hose for cracks or other damage.
CAUTION:

When installing the vacuum hose on the engine and brake booster, do not use soapy water or lubri-

cating oil on their connections.

6) Check that the vacuum hose is securely tightened.

(A) Brake booster
(B) Check valve

(C) Engine side
(D) Vacuum hose

PM-00665

(A)

(B)

(C)

(D)

PM-82

Brake Fluid

PERIODIC MAINTENANCE SERVICES

17.Brake Fluid

A: INSPECTION

1) Check that the amount of brake fluid is between the lines of “MIN” and “MAX” from a straight view or within

90° to the right and left forward.

If out of the specified range, refill with brake fluid or drain the fluid.

If the brake fluid level is close to “MIN”, check the brake pad for wear and refill with brake fluid.

2) Check the fluid for discoloration. If the fluid is extremely discolored, replace with the new fluid.

B: REPLACEMENT

CAUTION:

• Do not let brake fluid come into contact with the painted surface of the vehicle body. Wash away

with water immediately and wipe off if it is spilled by accident.

• Avoid mixing brake fluid of different brands to prevent fluid performance from degrading.

• Be careful not to allow dirt or dust to enter the reservoir tank.
NOTE:

• During the operation, keep the reservoir tank filled with brake fluid to prevent entry of air.

• Operate the brake pedal slowly.

• For convenience and safety, perform the work with 2 people.

1) Lift up the vehicle and set rigid racks at the specified locations, or keep the vehicle lifted.

2) Remove both the front and rear wheels.

3) Drain brake fluid from the reservoir tank.

4) Refill the reservoir tank with recommended brake fluid.
Recommended brake fluid:

SUBARU genuine brake fluid

Perform the same procedure as for bleeding the brake line, until new brake fluid comes out from vinyl tube.

PM-83

Disc Brake Pad and Disc

PERIODIC MAINTENANCE SERVICES

18.Disc Brake Pad and Disc

A: INSPECTION

1) Lift up the vehicle, and remove the wheels.

2) Visually check the pad thickness through inspection hole of disc brake assembly. Replace the pad if nec-

essary.
CAUTION:

When replacing a pad, always replace the pads for both the left and right wheels at the same time.

Also replace the pad clips if they are twisted or worn.

(A) Inspection hole

(A) Pad thickness
(B) Back metal

(C) Lining

PM-00698

(A)

PM-00699

(A)

(C)

(B)

PM-84

Disc Brake Pad and Disc

PERIODIC MAINTENANCE SERVICES

• Front

• Rear

3) Check the disc rotor, and correct or replace if it is damaged or worn.

• Front

• Rear

4) Remove the caliper body.

5) Tighten the wheel nuts to secure disc rotor.

6) Set a dial gauge at a point of 10 mm (0.39 in) or less from outer periphery of the rotor, and then measure

the disc rotor runout.
Disc rotor runout limit:

Front:

0.050 mm (0.0020 in)

Rear:

0.050 mm (0.0020 in)

Pad thickness

mm (in)

Standard

11 (0.43)

Wear limit

1.5 (0.059)

Pad thickness

mm (in)

Standard

Ventilated

11 (0.43)

Solid

9 (0.35)

Wear limit

Ventilated

1.5 (0.059)

Solid

1.5 (0.059)

Disc rotor thickness

mm (in)

Standard

24 (0.94)

Wear limit

22 (0.87)

Disc rotor thickness

mm (in)

Standard

Ventilated

18 (0.71)

Solid

10 (0.39)

Wear limit

Ventilated

16 (0.63)

Solid

8.5 (0.34)

PM-00700