Opel Frontera UE. Manual - part 1401

5C–42

POWER-ASSISTED BRAKE SYSTEM

Main Data and Specifications

General Specifications

Torque Specifications

E05RX009

Type

Floating, pin slide

Pad dimension

55 cm

2

 (8.52 in

2

)

Adjusting method

Self–adjusting

Piston diameter

60.33 mm (2.38 in)

Disc type

Ventilated

Disc thickness

26 mm (1.02 in)

Disc effective diameter

222 mm (8.74 in)

SECTION

POWER-ASSISTED BRAKE SYSTEM

5C–43

Rear Disc Brake Pads

Brake Pads Inspection

Check the outer pads by looking at each caliper from 
above. Check the thickness on the inner pad by looking 
down through the inspection hole in the top of the 
caliper. Whenever the pad is worn to about the 
thickness of the pad base, the pad should be removed 
for further measurements. The pad should be replaced 
anytime the pad thickness (1) is worn to within 1.0 mm 
(0.039 in) of the pad itself.
The disc pads have a wear indicator that makes a noise 
when the pad wears to where replacement is required.

Minimum limit (1): 1.0 mm (0.039 in)

302RW016

Brake Pads and Associated Parts

306RW001

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(1) Caliper Assembly
(2) Clip

(3) Lock Bolt
(4) Pad Assembly

SECTION

5C–44

POWER-ASSISTED BRAKE SYSTEM

Removal

NOTE:  If a squealing noise occurs from the rear brake 
while driving, check the pad wear indicator plate. If the 
indicator plate contacts the rotor, the disc pad assembly 
should be replaced.

• Draw out two–thirds of the brake fluid from the 

reservoir.

• Raise the vehicle and support it with suitable safety 

stands.

1. Remove wheel and tire assembly, referring to 

“

Wheels and Tires System

" in Section 3E.

2. Remove lock bolt (1)

306RW002

3. Rotate caliper assembly and support the caliper 

assembly so that the brake hose is not stretched or 
damaged.

4. Remove pad assembly with shim.

5. Remove clip.

Installation

1. Install clip (2).

306RW003

2. Apply special grease (approximately 0.2g) to both 

contacting surfaces of the inner shims. Wipe off 
extruded grease after installing. Install pad 
assembly with shim.

306RW004

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(3) Inner Shim
(4) Wear Indicator

SECTION

POWER-ASSISTED BRAKE SYSTEM

5C–45

306RW005

3. Use adjustable pliers to bottom the piston into the 

caliper bore. Be careful not to damage the piston 
dust boot and do not damage the flexible hose by 
twisting or pulling it. Install caliper assembly.
Set caliper assembly in place.

302RS008

4. Install lock bolt (5) and tighten the bolt to the 

specified torque.

Torque: 43 N·m (4.4 kg·m/32 lbft)

5. Install wheel and tire assembly, referring to “

Wheels 

and Tires System

" in Section 3E.

6. Pump the brake pedal several times to make sure 

that the pedal is firm.  Check the brake fluid level in 
the reservoir after pumping the brakes.

306RW006

SECTION