Pic. 12.6. Removing the front disc brake caliper floating caliper: 1 - brake pad wear sensor connector; 2 - brake hose; 3 - guide pin fastening bolt; 4 - caliper holder mounting bolt; 5 - caliper; 6 - caliper holder
Removal
- Be sure to replace the front brake caliper floating calipers as a pair, even if only one caliper has failed.
- Apply the parking brake and block the rear wheels with chocks.
- Loosen the front wheel nuts. Raise the front of the car and place it on supports. Remove the front wheel.
- To limit the amount of brake fluid escaping, install a pressure device on the brake pedal
- Disconnect the brake pad wear sensor connector.
- Loosen the brake hose on the slave cylinder.
- Remove the two bolts securing the floating caliper bracket.
- Remove the brake pads.
- Disconnect the brake hose from the working cylinder by rotating the brake caliper bracket, while taking measures to collect the leaking brake fluid. To prevent brake fluid from leaking, close the hole in the brake hose with a plug or a piece of rubber hose of suitable diameter. If the caliper is being removed to access other components, do not disconnect the brake hose from it.
- Check the condition of the brake hose and... if necessary, replace it.
- The brake hose must be replaced if the brake caliper bracket is replaced.
Installation
- Screw the caliper bracket onto the brake hose.
- Install the caliper holder onto the steering knuckle, being careful not to twist the brake hose. Screw in and tighten the caliper holder mounting bolts to the required torque.
- Install the brake pads.
- Install the brake caliper floating bracket and a new lower guide pin bolt.
- Press the brake caliper and install the upper guide pin bolt.
- Starting with the bottom bolt, tighten the guide pin bolts to the specified torque.
- Connect the brake pad wear indicator wire. ensuring its correct location.
- Remove the pressure device from the brake pedal.
- Loosen the bleeder screw on the working cylinder and wait. until the fluid begins to flow out, while making sure that the brake fluid level in the reservoir is high enough.
- Tighten the bleeder fitting.
- Check the condition of the brake pads and if they are oily, replace them.
- Removing air from this circuit of the hydraulic brake drive is carried out only if the bottom of the reservoir is exposed during work. If this happened. It is necessary to bleed both hydraulic circuits of the brakes.
- Install the wheels and lower the car to the ground.
- Press the brake pedal several times. so that the brake pads press against the brake disc.
- Add brake fluid to the brake system reservoir.