Hydraulic brakes — air removal (Opel Astra G)

1. If the fluid loss is small, air may be removed only from the part of the system that was disassembled.

2. When removing air from the entire system, perform the procedure in the following sequence:

A) Right rear wheel
B) Left rear wheel
B) Right front wheel
C) Left front wheel

3. Remove the dust cap (see photo). Place the hose on the bleed nipple and lower the other end into a container with brake fluid.



4. During the bleeding procedure, the brake fluid level in the reservoir should not fall below the MIN mark.

5. Unscrew the bleed nipple (approximately ½ turn) and ask an assistant to press the brake pedal several times and hold the pedal down.

6. After the air bubbles stop coming out of the hose, tighten the bleed nipple and ask the assistant to smoothly release the pedal. Check the fluid level in the reservoir. If a small amount of fluid has leaked out, repeat the procedure by pressing the pedal more vigorously.

7. Repeat procedures 5 and 6 until the bubbles stop coming out.

8. Tighten the bleed nipple, disconnect the hose, and replace the cap.

9. Repeat the procedure on the remaining wheels.