Attention:
When replacing or repairing the following parts, please observe the following: "Guide to filling and bleeding the reservoir":
- dual-cavity master brake cylinder.
- hydraulic unit.
- parts or connecting pipelines between these units.
Connect a bleeding device rated for a maximum of 2 bar.
An assistant is required to perform this operation.
2. Connect DIS.
3. Select the menu item: Service functions - Chassis - Stability control systems - Bleeding program.
Attention:
- Follow the operating instructions provided by the device manufacturer.
- The pressure should not exceed 2 bar.
- Connect the brake fluid changer to the reservoir and turn it on.
4. Bleed the entire brake system:
1) Connect one end of the hose to a receiving vessel, and place the other end on the head of the nipple of the rear right wheel caliper.
2) Loosen the nipple and bleed the hydraulic drive until clean brake fluid without air bubbles flows out.
3) Close the nipple.
4) Repeat the operation on the rear left, front right and front left wheels.
5. Bleed the rear wheel brake circuit.
1) Connect one end of the hose to a receiving vessel, and place the other end on the head of the nipple of the rear right wheel caliper.
2) Open the nipple.
3) Perform the bleeding program using DIS with the bleeding nipple open.
4) After completing the program, press the brake pedal 5 times until it stops. The flowing liquid should be clean and free of air bubbles.
5) Close the nipple.
6) Repeat this process for the rear left wheel.
6. Bleed the front wheel brake circuit.
1) Connect one end of the hose to a receiving vessel, and place the other end on the head of the front right wheel caliper nipple.
2) Open the nipple.
3) Perform the bleeding program using DIS with the bleeding nipple open.
4) After completing the program, press the brake pedal 5 times until it stops. The flowing liquid should be clean and free of air bubbles.
5) Close the nipple.
6) Repeat this process for the front left wheel.
7. Turn off the brake fluid changer and disconnect it from the reservoir.
8. Check the brake fluid level. If necessary, add/pump out fluid up to the MAX mark.
9. Close the tank.
Note: Make sure the rubber gasket (1) is in place in the lid.
(The original entry can be found on the portal bmwman)