Contents: Removal ↳ Installation ↳
Front wheel brake caliper
1 – inner brake shoe; 2 – guide pin; 3 – bracket; 4 – outer brake shoe; 5 – mounting bracket; 6 – dust cap; 7 – sealing ring; 8 – piston; 9 – cylinder body
Front disc brakes
Left - 1981; on the right - 1988
1 – bleed nipple; 2 – clamp; 3 – guide pin; 4 – brake pad wear indicator connector; 5 – inner brake shoe; 6 – outer brake shoe; 7 – lower guide pin; 8 – cylinder body; 9 – support; 10 – bracket; 11 – brake disc; 12 – brake disc mounting screw; 13 – holder
Caution! When reinstalling brake pads, they must be installed in the same places from which they were removed. Do not swap the pads.
Attention! Since 1987, brake pads that do not produce extraneous sounds when cold brakes are applied have been installed as standard. Such pads can also be installed on cars of earlier production. Catalog numbers of the new pads: for conventional brake discs - 6178479, for ventilated - 6178480.
Removal
1. Loosen the wheel mounting bolts, raise the vehicle, unscrew the bolts and remove the wheels.
2. If there is a brake pad wear indicator, disconnect the connector from the caliper.
3. Use a narrow screwdriver to remove the locking clip (left – 1981, right – 1988).
4. Using a 7 mm socket wrench, unscrew the bolts securing the caliper to the bracket.
5. Remove the caliper cylinder body and hang it from the suspension strut using soft wire.
6. Remove the inner brake pad from the caliper cylinder body.
7. Remove the outer brake shoe from the bracket.
8. Pump out some brake fluid from the reservoir and press the piston fully into the brake cylinder. While pressing the piston, constantly monitor the brake fluid level in the reservoir.
Caution! When the brake pads are removed, do not press the brake pedal, as this will cause the piston to be pushed out of the cylinder.
Installation
1. Thoroughly clean the guides and pad seating areas.
2. Check the condition of the dust cap and piston sealing ring.
3. Measure the thickness of the brake disc.
4. Install the inner brake shoe with the spring on the back side into the cylinder body.
5. If there is a brake pad wear sensor, run the sensor wire into the caliper hole and secure it to the bleed nipple (1 - bleed nipple, 2 - brake pad wear indicator connector). The free minimum length of the wire should be at least 26 mm.
6. Install the outer brake shoe into the bracket.
7. Install the cylinder body and tighten the mounting bolts.
8. Install the mounting bracket.
9. Install the front wheels and lower the vehicle.
10. Press the brake pedal several times to install the brake pads.
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