parking brake BMW MOTORRAD R 1100 S 2000 Rider's Manual (in English)

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3
Brake system - with BMW Integral ABS*
Sensitive electronic
control
It takes skill and sensitive con-
trol of the brakes to pull up
safely on a motorcycle. If the
front wheel brake locks and the
wheel skids, the necessary lon-
gitudinal and lateral stabilising
forces are lost, and a fall can
result.
For this reason, the rider sel-
dom makes full use of available
braking performance in an
emergency.
* Optional extra
BMW Integral ABS is the latest-
generation BMW ABS develop-
ment: by preventing both
wheels from locking and opti-
mising braking-force distribu-
tion by means of the integral
function, it offers much
improved braking performance
(
b 70). Full use is made of tech-
nical braking capacity to mini-
mise braking distances, even
when road conditions are poor.
When the motorcycle is ridden
in a straight line, the
BMW Integral ABS is able to
handle emergency braking
safely.
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Brake system - with BMW Integral ABS*
Safety marginBut remember: the potentially
shorter braking distances
which BMW Integral ABS per-
mits must not be used as an
excuse for careless riding. ABS
is primarily a means of ensuring
a safety margin in genuine
emergencies.
– You have to familiarise your-self with the new, electroni-
cally assisted braking. Try the
brakes several times when
you take your motorcycle out
for the first time. Find out for
yourself how the brakes feel.
– Never ride without due care
and attention, or assume that
good fortune will protect you
from your own foolhardiness
– Keep within the permitted
speed limits – Take care when cornering.
When you apply the brakes on
a corner, the motorcycle's
weight and momentum take
over and even BMW Integral
ABS is unable to counteract
their effects.
* Optional extra
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Brake system - with BMW Integral ABS*
Partially integral brakesThe integral brake function
interlinks the front and rear
brakes, so both wheels are
braked when you operate the
brake lever.
The electronic controller in the
BMW Integral ABS* computes
the braking-force distribution
between front and rear wheels,
and applies the brakes accord-
ingly.
The baking-force distribution
depends on load and is recal-
culated every time the ABS
controller comes into action.
In this partially integral brake
configuration, the integral brak-
ing function is activated only
when you pull the handbrake
lever. The footbrake lever acts
only on the rear brake.Brake servoThe hydraulic pump in the BMW
Integral ABS* actively boosts
the braking force acting on the
wheel when the brakes are
applied.
By boosting the braking force in
this way, the BMW Integral
ABS* achieves a higher braking
efficiency than standard brake
systems.
ABS - anti-lock brake
system*
ABS prevents the wheels lock-
ing under heavy braking when
the motorcycle is travelling in a
straight line, thus contributing
significantly to road safety.
* Optional extra
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71
Starting – Riding – Parking
Brake system - with BMW Integral ABS*
RESIDUAL BRAKING
FUNCTION
If the BMW Integral ABS* develops
a fault, a RESIDUAL BRAKING
FUNCTION only is available in the
brake circuits in question.
The RESIDUAL BRAKING
FUNCTION is the braking efficiency
without the hydraulic servo assist-
ance of the BMW Integral ABS*.
Under these circumstances, there-
fore, you must apply
CONSIDERABLY higher pressure
to the brake levers in question in
order to apply the brakes, and lever
travel is longer.
When the RESIDUAL BRAKING
FUNCTION is active, the ABS func-
tion is unavailable in the brake sys-
tem in question.
When the RESIDUAL BRAKING
FUNCTION is active, the integral
braking function is partially or
entirely unavailable.
d Warning:
When the RESIDUAL BRAKING
FUNCTION is active, maintain a
defensive riding style and pro-
ceed immediately to the nearest
specialist workshop, preferably
an authorised BMW motorcycle
dealer.
L Note:
When the RESIDUAL BRAKING
FUNCTION is active, it is advisable
to set adjuster A (
b 27) on the front-
brake lever to position 4.
The RESIDUAL BRAKING
FUNCTION is active under the fol- lowing circumstances:
– Ignition off
– Before and during self-diagnosis
(
b 72)
– Fault in the BMW Integral ABS* (
b 75)
L Note:
When the RESIDUAL BRAKING
FUNCTION is active for both brake
circuits, the noise of the pump is no
longer audible when you operate
the brake levers.
* Optional extra
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Self-diagnosis with
pull-away test
The BMW Integral ABS per-
forms self-diagnosis and a pull-
away test to ensure its opera-
bility.
Self-diagnosis is performed
automatically when you switch
on the ignition.
d Warning:
Self-diagnosis is not perfor-
med unless both brake levers
are in their fully released posi-
tions. Only the RESIDUAL
BRAKING FUNCTION is avail-
able until self-diagnosis is
completed (b 71). Release the brake levers, if
necessary.
Switch on the ignition
Initially:
– ABS warning/brake failure light 1:
flashes at 4 Hz (
b 58)
– General warning light 2:
ON
bSelf-diagnosis is in
progress
Then:
– ABS warning/brake failure light 1:
flashes at 1 Hz
– General warning light 2:
OFF
bSelf-diagnosis successfully
completed
* Optional extra
Brake system - with BMW Integral ABS*
21
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Move off
– ABS warning/brake failure light 1:
OFF (as of approx. 5 km/h
(3 mph) road speed)
bPull-away test successfully
completed
bBMW Integral ABS
is available
*Optional extra
L Note:
Starting on gradients:
Always switch on the ignition
with gear engaged, clutch lever
released and both brake levers
released.
Self-diagnosis cannot be per-
formed if you do not follow this
procedure.
When self-diagnosis com-
pletes, apply the brakes, disen-
gage the clutch, and start the
engine.
L Note:
Flashing at 1 Hz = 1 flash per
second (slow flashing)
Flashing at 4 Hz = 4 flashes per
second (fast flashing)
Brake system - with BMW Integral ABS*
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d Warning:
If the BMW Integral ABS fails
in both brake circuits, a RESI-
DUAL BRAKING FUNCTION
only is available. (b 71)
d Warning:
If the RESIDUAL BRAKING
FUNCTION is active (
b 71),
maintain a defensive riding
style and proceed immediate-
ly to a specialist workshop,
preferably an authorised BMW
motorcycle dealer.
d Warning:
If there is a fault in the ABS
system, the reserves of safety
normally afforded by ABS are
not available until the defect
has been put right.
There is a risk of dropping the
machine if the brakes are
applied too hard and the front
wheel locks or the rear wheel
lifts clear of the ground as a
result of a high level of front
tyre adhesion.
* Optional extra
Brake system - with BMW Integral ABS*
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BMW Integral ABS* - Fault table
General
warning
lighte ABS warning
light
l /
brake failure Malfunctions
OFF ONOnly RESIDUAL BRAKING FUNCTION
available in both circuits (
b 71)
OFF Flashes at
1Hz ABS not available
Pull-away test not completed (
b 72)
OFF Flashes at
4Hz Only RESIDUAL BRAKING FUNCTION
available in both circuits (
b 71).
Self-diagnosis not completed (b 72)
ON OFF Rear light/brake light defective (Service and Technical Booklet
b Chapter 2)
ON Flashes at 1HzAt least one brake circuit without
ABS (
b 74)
ON Flashes at
4HzAt least one brake circuit in RESIDUAL
BRAKING FUNCTION mode (
b 71)
Alternate
flashing at
1Hz Alternate
flashing at
1HzFluid level in BMW Integral ABS too low.
Check the motorcycle as follows:
– Ignition OFF: is brake pressure OK at
the brake levers?
– Are the brakes acting on both wheels?
– Is the brake system leaktight, no signs of brake fluid escaping?
The brake system is defective if the test
outcome is negative.
d Warning:Do not ride the motorcycle if you have
any doubts about the safety of the
brake system.
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