Bleed Rear-Axle Brake Circuit
NOTE:
Bleeding unit is connected with maximum 29 psi (2 bar) filling pressure.
NOTE:
Check relevant operating instructions for each device.
- Connect BMW Diagnosis and Information System (DIS).
- Call up service function BLEEDING ABS/ASC HYDRAULICS.
- Connect bleeding unit to expansion tank and switch on.
- Connect bleeder hose with container to bleed valve on right brake caliper.
- Open bleed valve.
- Run bleeding routine with BMW Diagnosis and Information System (DIS) with bleeder valve open.
- After running routine, press brake pedal 5 times to stop. Clear, bubble-free brake fluid must flow out.
- Close bleeder valve.
- Repeat procedure at left rear caliper.
- Switch off bleeder unit and disconnect from expansion tank.
- Check brake fluid level.
- Close expansion tank. Take care of rubber gasket in lid.