Rear Brake; Drawing Off Brake Fluid/Forcing Back Brake Pistons; Bleeding Rear Brake Circuit - BMW C1 Repair Manual

Rear brake

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Caution:
Do not allow brake fluid to come into contact with
painted parts of the vehicle as brake fluid destroys
paint.
Drawing off brake fluid/forcing back brake
pistons
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Caution:
Avoid damaging or scratching the brake calliper; if
necessary mask off the brake calliper.
•
Use a crowbar to press the brake calliper against
the brake disc to force back the brake pads and
piston
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Note:
If the brake pads/pistons cannot be forced back in
this way, there may be some other fault in the brake
system.
•
Connect the brake bleeding device to the bleed
screw on the brake calliper
•
Draw off brake fluid from the rear brakes
When installing:
•
Installation is the reverse of the removal proce-
dure
– Add brake fluid up to the top of the sight glass
– Bleed the rear brake circuit
•
Check the function of the brake system

Bleeding rear brake circuit

– Add brake fluid up to the top of the sight glass
•
Connect the brake bleeding device to the bleed
screw on the brake calliper
•
Open the bleed screw by half a turn
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Caution:
Brake fluid level must not drop below the MIN mark
during the bleeding process, otherwise air will be
drawn into the brake system. Bleed the system
again if this happens.
•
Draw off brake fluid until it emerges clear and
free from air bubbles
•
Tighten the bleed screw
•
Check the function of the brake system
Materials:
DOT 4 brake fluid
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Tightening torques:
Bleed screw ................................................. 14 Nm
C1340020
00.55