2002 BMW MOTORRAD R 1150 GS Adventure brakes

3
80
Starting – Riding – Parking
Brake system - with BMW Integral ABSOE
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.
OEOptional 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 82). 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 Inte-
gral ABS is able to handle
emergency braking safely.
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81
Starting – Riding – Parking
Brake system - with BMW Integral ABSOE
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.
OEOptional extra
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3
82
Starting – Riding – Parking
Brake system - with BMW Integral ABSOE
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
accordingly.
Braking-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 higher braking effi-
ciency than standard brake
systems.
ABS
anti-lock brake system
ABS prevents the wheels lock-
ing under heavy braking, thus
contributing significantly to
road safety.
OEOptional extra
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3
83
Starting – Riding – Parking
Brake system - with BMW Integral ABSOE
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 FUNC-
TION is the braking efficiency
without the hydraulic servo assist-
ance of the BMW Integral ABS.
Under these circumstances,
therefore, you must apply CON-
SIDERABLY 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
function is unavailable in the
brake system 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 advis-
able to set adjuster A
(
b 35) on the front-brake lever
to position 4.
The RESIDUAL BRAKING
FUNCTION is active under the
following circumstances:
– Ignition off
– Before and during self-diag- nosis (
b 84)
– Fault in the BMW Integral ABS
(
b 88)
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.
OEOptional extra
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3
85
Starting – Riding – Parking
1*
Start the engine.
 Move off
– ABS warning light1:
OFF (as of approx. 5 km/h
(3 mph) road speed)
bPull-away test successfully
completed
bBMW Integral ABS
is available
L Note:
Flashing at 1 Hz = 1 flash per
second (slow flashing)
Flashing at 4 Hz = 4 flashes per
second (fast flashing)
OEOptional 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.
*n depending on national-market
specification
Brake system - with BMW Integral ABSOE
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87
Starting – Riding – Parking
21*
d Warning:
If the ABS function is off – as
indicated by ABS warning
light 1 – the safety reserves
afforded by the anti-
lock braking system are not
available until the
ABS function is reactivated.
There is a risk of dropping the
motorcycle 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.
*n depending on national-market
specification
– With the motorcycle at a standstill, switch off the igni-
tion
 Press and hold down ABS acknowledge button 2
 Switch on the ignition
 Hold down ABS acknowledge button 2 until
the ABS warning light 1
remains on
 Release ABS acknowledge button 2
– The ABS function is deacti- vated
– Warning light 1 remains per-
manently on to remind you
that ABS has been deacti-
vated
OEOptional extra
Brake system - with BMW Integral ABSOE
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88
Starting – Riding – Parking
21*
BMW Integral ABS
OE Troubleshooting
d Warning:
If the BMW Integral ABS fails
in both brake circuits, a
RESIDUAL BRAKING FUNC-
TION only is available! (b 83)
d Warning:
When RESIDUAL BRAKING
FUNCTION (
b 83) is active,
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 ap-
plied 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. Have the de-
fect rectified immediately by
a specialist workshop, prefer-
ably an authorised
BMW motorcycle dealer.
*n depending on national-market
specification
General warn- ing light eABS warning
light
l Malfunctions
OFF ON Only RESIDUAL BRAKING FUNCTION available in both circuits (
b 83) or
the ABS function has been deactivated
OFF Flashes at 1 Hz ABS not available Pull-away test not completed (
b 84)
OFF Flashes at 4 Hz Only RESIDUAL BRAKING FUNCTION available in both circuits (
b 83)
Self-diagnosis not completed (b 84)
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89
Starting – Riding – Parking
BMW Integral ABSOE Troubleshooting
OEOptional extra
General
warning
lighte ABS warning
light
l Malfunctions
ON OFF Tail light/brake light defective (Maintenance Instructions, b Chapter 2)
ON Flashes at 1 HzAt least one brake circuit without
ABS (
b 82)
ON Flashes at 4 HzAt least one brake circuit in RESIDUAL
BRAKING FUNCTION mode (
b 83)
Alternate flas-
hing at 1 Hz Alternate flas-
hing at 1 HzFluid 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.
Alternate flas-
hing at 4 Hz Alternate flas-
hing at 4 HzFluid level in the BMW Integral ABS is too
low, perform the checks listed above.
Only RESIDUAL BRAKING FUNCTION
available in at least one circuit (
b 83)

d Warning:
Do not ride the motorcycle if you
have any doubts about the
dependability of the brake system.
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