Motorcycle BMW R1150RT. Manual - part 12

 

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Motorcycle BMW R1150RT. Manual - part 12

 

 

00.44 

Instructions for filling front wheel 
circuit reservoir

e

 Attention:

Integral brakes, the rear brake must be ready for 
use.

Top up fluid in front wheel-circuit reservoir to 
“MAX” if necessary

Install adapters 22, BMW No. 34 1 533, in reset-
ting tool, BMW No. 34 1 531/532, for both front 
brake calipers, and tighten the resetting tool until 
the adapters are secure.

e

 Attention:

The piston in the base of the wheel-circuit reservoir 
must always be covered by the fluid, as otherwise air 
can be drawn into the brake system.
Bleed the system again if this happens.

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.

Pull handbrake lever until the pistons of the front 
brake calipers are in contact with resetting 
tool, BMW No. 34 1 531.

Top up the fluid in the wheel-circuit reservoir until 
one of the three protrusions in the filler neck just 
touches the surface of the fluid (arrow).

Screw container, BMW No. 34 1 581
onto front wheel circuit reservoir.

Remove adapter, BMW No. 34 1 533, and force 
back pistons far enough to allow the brake pads 
to be fitted.

Install front brake pads.

With the ignition switched on, bed in the brake 
pads against the brake discs.

Disconnect the container from the wheel-circuit 
reservoir.

Hand-tighten cap of front wheel-circuit reservoir.

Check the function of the brake system.

e

 Attention:

After all the work on the brake system has been 
completed, run a bleed test using the 
BMW MoDiTeC and check the fault code memory!

Install fuel tank.

Brake fluid ...................................................DOT 4

Tightening torque:

Bleed screw in front brake caliper .................. 7 Nm

R22000300

34 1 531

34 1 532

34 1 533

MAX

MIN

R28340090

 00.45

Only bleeding the front wheel circuit

Draw off the old brake fluid from the wheel-circuit 
reservoir.

Remove left and right brake pads, force back the 
brake pistons and secure the pistons in this po-
sition.

Wrap cloths around the left and right brake cali-
pers.

e

 Attention:

Integral brakes, the rear brake must be ready for 
use.

Fill front wheel-circuit reservoir with brake fluid 
up to “MAX” mark and install cap, 
BMW No. 34 2 541.

Connect 1.5 m silicon hose, 
BMW No. 34 1 561, to the bleed screw of the left 
brake caliper.

L

 Note:

If necessary, use a cable tie to secure the bleed 
hose to the bleed screw.

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.

Very gently pull the handbrake lever until the 
pump just starts up.

Open the bleed screw.

Pump the brake fluid with virtually no pressure 
until the hose is full of brake fluid.

Connect end of hose to 
cap, BMW No. 34 2 541.

Pump the brake fluid with virtually no pressure to 
begin with, then vary the brake pressure.

d

 Warning:

Check that the brake fluid in the hose does not 
foam.
If the fluid foams, proceed as described in the sec-
tion on bleeding and changing brake fluid in front 
wheel circuit (

a

00.42).

Pump brake fluid through the system until it is 
clear and free from air bubbles.

Close the bleed screw.

Release the brake and disconnect silicon 
hose, BMW No. 34 1 561.

Fill front wheel-circuit reservoir with brake fluid 
up to “MAX” mark and install 
cap, BMW No. 34 2 541.

Connect 1.5 m silicon 
hose, BMW No. 34 1 561, to the bleed screw of 
the right brake caliper.

The procedure for bleeding the right brake cali-
per is the same as that for the left caliper.

Release the brake and switch off the ignition.

Disconnect silicon hose, BMW No. 34 1 561
from bleed screw and drain the hose.

Remove cap, BMW No. 34 2 541.

e

 Attention:

After changing and/or bleeding the brakes, always 
top up the fluid in the wheel-circuit reservoir to the 
correct level in accordance with the instructions.

Fill front wheel-circuit reservoir with brake fluid in 
accordance with instructions (

a

00.44).

Check operation of the brake system with the ig-
nition switched on.

e

 Attention:

After all the work on the brake system has been 
completed, run a bleed test using the 
BMW MoDiTeC.

Brake fluid ...................................................DOT 4

Tightening torque:

Bleed screw in front brake caliper .................. 7 Nm
Threaded pin in front brake caliper................. 7 Nm

R28000220

34 2 541

34 1 561

00.46 

34 00 080 

Bleeding/changing brake fluid 

in rear wheel circuit

e

 Attention:

Integral brakes, the front brake must be ready for 
use.

Remove fuel tank.

e

 Attention:

Do not allow brake fluid to come into contact with 
painted parts of the motorcycle as brake fluid de-
stroys paint.

Open rear wheel-circuit reservoir (1).

Draw off the old brake fluid from the wheel-circuit 
reservoir.

Remove rear brake pads.

If necessary, manually push back brake piston 
far enough to permit installation of resetting 
tool, BMW No. 34 1 531.

e

 Attention:

Install piston resetting tool, BMW No. 34 1 531
only when the cap has been removed from the 
wheel-circuit reservoir.

Install adapter, BMW No. 34 1 536, instead of 
the outboard brake pad.

Install resetting tool, BMW No. 34 1 531, with 
the handle toward the outside in the rear brake 
caliper, press the pistons fully back and secure 
them in this position.

Wrap a cloth around the brake caliper.

[Bleeding only] Bleed the rear wheel circuit. 
(

a

00.49)

Draw off the old brake fluid from the wheel-circuit 
reservoir.

Screw container, BMW No. 34 1 581
onto rear wheel circuit reservoir.

Slowly fill container, BMW No. 34 1 581, with 
new brake fluid until it is approximately 1/3 full.

Connect the brake bleeding device to the bleed 
screw, but do not switch on the device.

L

 Note:

If necessary, use a cable tie to secure the bleed 
hose to the bleed screw.

R28340110

1

R28000170

34 1 536

34 1 531

R22000350

34 1 581

 00.47

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.

e

 Attention:

The brake fluid must always be visible in the contain-
er, because the piston in the base of the wheel-cir-
cuit reservoir must always be covered by the fluid.
The procedure must be repeated if the fluid drops 
below the “min” level.

Very gently press the footbrake lever until the 
pump just starts up.

Open the bleed screw, while topping up the con-
tainer with new brake fluid if necessary.

Pump out the brake fluid with virtually no pres-
sure to begin with, then vary the brake pressure.

L

 Note:

The higher the brake pressure the faster the fluid is 
pumped through the system, which means that the 
level in the wheel-circuit reservoir drops all the more 
rapidly.

When the brake fluid is clear and free of bubbles, 
continue pumping until the fluid in the container 
just disappears from view.

Close the bleed screw.

Release the brake and switch off the ignition.

Disconnect the brake bleeding device from the 
bleed screw.

Disconnect the container from the wheel-circuit 
reservoir.

e

 Attention:

After changing and/or bleeding the brakes, always 
top up the fluid in the wheel-circuit reservoir to the 
correct level in accordance with the instructions.

MAX

MIN

R28340090

 

 

 

 

 

 

 

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