[Integral Abs] Draining Brake System; [Integral Abs] Draining Wheel Circuit; Draining Rear Wheel Circuit; Draining Front Wheel Circuit - BMW k 1200 rs Repair Manual

[Integral ABS] Draining brake
3400
system
[Integral ABS] Draining wheel cir-
3400
cuit
L
Note:
The Integral ABS brake system has four independ-
ent brake fluid circuits.
These are drained, bled and filled separately.
The control circuit leads from the handbrake / foot-
brake cylinder to the pressure modulator.
The wheel circuit leads from the pressure modulator
to the brake caliper. Pressure in this system is
boosted by a pump.
3
MAX
MIN
4
H
– Preliminary work - front and rear wheel circuits
( 00.45).
a
L
Note:
The control circuit must be filled with brake fluid.
The pressure modulator can only be drained using
the internal pump.

Draining rear wheel circuit

•
Remove the cover (3) from the reservoir (4).
– Force back the brake pistons in the rear caliper
( 00.48).
a
•
Connect the brake bleeding device to the rear
brake caliper, but do not switch on.
34.16
•
Switch on the ignition.
L
Note:
After switching on the ignition, always wait for the
BMW Integral ABS to complete its self-diagnosis.
Do not operate the brake lever until self-diagnosis
has completed.
•
Gently press the footbrake lever; the pump starts
up.
•
Open the bleed screw at the brake caliper.
•
Drain the wheel circuit with the pump.
•
Close the bleed screw.
•
Release the brake lever.

Draining front wheel circuit

L
Note:
2 4
Use the same procedure as for the rear wheel cir-
cuit. Drain from the front brake calipers.
MAX
•
Remove the cover (2) from the reservoir (1).
– Force back the brake pistons (
1
•
Gently pull the handbrake lever until the pump
starts up.
MIN
•
Drain the wheel circuit with the pump.
V
[Integral ABS] Draining control cir-
3400
cuit
e
KR340571
Attention:
Do not disconnect the connector from the ABS con-
trol unit.

Bleeding rear control circuit

– Preliminary work - front and rear control circuits
( 00.51).
a
•
Remove the cover (3) from the reservoir (4).
•
Drain rear control circuit.

Bleeding front control circuit

– Preliminary work - front and rear control circuits
( 00.51).
a
•
Remove reservoir cap with rubber diaphragm
from the handlebar fitting.
•
Drain the reservoir on the handlebar fitting.
•
Drain the front control circuit.
00.45).
a