Assembly of the fixed front brake caliper
1 — Support
2 - Tube
3 — Bleed nipple with dust cover
4 - Bolt
5 — Brake pad wear sensor
6 — Set of dust covers
7 — Set of fastening parts
8 - Brake pads
Assembly of 2-piston floating front brake caliper
1 — Caliper housing
2 — Brake shoe guide
3 - Retaining spring
4 — Bolt
5 — Bleed nipple with dust cover
6 — Dust cover
7 - Guide pin
8 - Cork
9 — Brake pad wear sensor
10 - Sealing parts
11 — Guide bushing from repair kit
12 — Brake pad repair kit
Assembly of 1-piston floating caliper front/rear brake mechanism
1 — Caliper housing
2 — Brake shoe guide
3 - Retaining spring
4 — Bolt
5 — Bleed nipple with dust cover
6 — Dust cover
7 - Guide pin
8 - Cork
9 — Brake pad wear sensor
10 - Sealing parts
11 — Guide bushing from repair kit
12 — Brake pad repair kit
1. Remove the wheels.
2. Install the brake pedal spacer and press the pedal lightly. When opening the brake hydraulic lines, this will prevent brake fluid from leaking out of the reservoir and air from entering the device.
3. On the rear brake mechanisms, unscrew the bolts (1) and disconnect the brake hose (2). On the right, disconnect the brake pad wear sensor connector. Remove the caliper by moving it backwards.
4. On the front brake mechanisms, disconnect the brake hose from the pipe.
5. Disconnect the brake pad wear sensor connector on the left. Remove the bolts (1) and remove the caliper.
6. If you need to repair the caliper, refer to the illustrations Assembly of the fixed front brake caliper, Assembly of 2-piston floating front brake caliper, Assembly of 1-piston floating caliper front/rear brake mechanism.
7. Installation is carried out in the reverse order. Do not allow the brake hose to be stretched. When installing the rear wheel calipers, first tighten the brake hose to the caliper, and then to the pipe.
8. Check the installation and fastening of the brake pad wear sensor wiring.
9. After completing the work, bleed the brake system (see chapter Vehicle settings and routine maintenance).
[The article text was copied from an online resource: «bmwman»]