BMW MOTORRAD R 850 R 2004 Rider's Manual (in English)

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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.

Optional extra
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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 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 effi-
ciency 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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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
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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Starting – Riding – Parking
12*
Self-diagnosis with
pull-away test
The BMW Integral ABS per-
forms self-diagnosis and a pull-
away test to ensure its operabil-
ity.
Self-diagnosis is performed
automatically when you switch
on the ignition.
d Warning:
Self-diagnosis is not per-
formed unless both brake le-
vers are in their fully released
positions.
Only the RESIDUAL BRAKING
FUNCTION is available until
self-diagnosis is completed
(b 71).  Release the brake levers, if
necessary
 Switch on the ignition
Initially:
– ABS warning light 2:
flashes at 4 Hz (
b 58)
– General warning light 1:
ON
bSelf-diagnosis is in
progress
Then:
– ABS warning light 2:
flashes at 1 Hz
– General warning light 1:
OFF
bSelf-diagnosis successfully
completed

Optional extra
* depending on national-market speci- fication
Brake system - with BMW Integral ABSOE
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12*
Start the engine.
 Move off
– ABS warning light2:
OFF (as of approx. 5 km/h
road speed)
bPull-away test successfully
completed
bBMW Integral ABS
is available
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)

Optional extra
* depending on national-market speci- fication
Brake system - with BMW Integral ABSOE
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12*
d Warning:
If the BMW Integral ABS fails
in both brake circuits, a
RESIDUAL 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.

Optional extra
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. Do not ride the
motorcycle if you have any
doubts about the safety of the
brake system.
* depending on national-market speci-
fication
Brake system - with BMW Integral ABSOE
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Optional extra
General
warning
lighte ABS warning
light
l/
brake failure Malfunctions
OFF ON Only RESIDUAL BRAKING FUNCTION available in both circuits (
b 71)
OFF Flashes at 1 Hz ABS not available Pull-away test not completed (
b 72)
OFF Flashes at 4 Hz Only RESIDUAL BRAKING FUNCTION available in both circuits (
b 71)
Self-diagnosis not completed (b 72)
ON OFF Tail light/brake light defective (Maintenance Instructions,
b Chapter 2)
ON Flashes at 1 Hz At least one brake circuit without ABS (
b 70)
ON Flashes at 4 Hz At least one brake circuit in RESIDUAL BRAKING FUNCTION mode (
b 71)
Alternate
flashing at
1Hz Alternate flash-
ing at 1 Hz
Fluid 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
flashing at 4
Hz Alternate flas-
hing at 4 Hz
Fluid 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 71)

d Warning:
Do not ride the motorcycle if you
have any doubts about the
dependability of the brake system.
BMW Integral ABSOE - Fault table
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Know-how …In recent years, motorcycles’
technical design features have
become more and more
sophisticated.
Motronic, electronic ignition,
integral brakes, the catalytic
converter or the use of four
valves per cylinder are clear
signs that far more than basic
technical knowledge may be
needed to solve certain prob-
lems. In addition, high-tech
materials are increasingly tak-
ing the place of conventional
ones, which again calls for thor-
ough and expert knowledge if
they are to be handled correctly
during repair work.
To be sure of achieving the nec-
essary standard, it is always
advisable to consult your
authorised BMW motorcycle
dealer.The authorised BMW motor-
cycle dealer employs staff who
attends regular and compre-
hensive training courses.
Authorised BMW motorcycle
dealers also receive all the cur-
rent technical information and
are therefore fully aware of the
latest developments.
… technical features …The authorised BMW motor-
cycle dealer’s staff has the
experience and all the neces-
sary facts at its disposal when it
comes to solving problems
quickly and effectively. Work-
shops are equipped with the
latest technical facilities, for
example the special tools
developed by BMW such as the
BMW
diagnosis system or
exhaust emissions tester.
Reliability
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Regular visits to the workshop
for routine servicing are
strongly recommended even
after the warranty period has
elapsed. They are the only way
to be genuinely certain that your
BMW motorcycle is being kept
in perfect working order.
For goodwill work after the war-
ranty period has expired, evi-
dence of regular maintenance
by an authorised BMW motor-
cycle dealer is essential.
Certain signs of wear may not
otherwise be noticed until it is
too late to put them right at
moderate costThe staff in the authorised BMW
motorcycle dealer or workshop
know every detail of your
motorcycle and can take reme-
dial action if necessary before
minor faults develop into seri-
ous problems. By having the
necessary repairs done prop-
erly and in good time, you save
time and money in the long run.
…serviceYou can obtain accurate advice
in all cases, and make appoint-
ments with a firm completion
deadline which we will comply
with punctually. But the most
gratifying feeling of all is that
your BMW is in genuinely good
shape when it leaves the
authorised BMW motorcycle
dealer’s workshop – and above
all, safe.
Reliability
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Arrive safely
Service worldwide
BMW Service CardA Service Card is now available
for all new BMW motorcycles.
A wide range of emergency-
assistance services are in place
to help you in the unlikely event
of a problem occurring some-
where far from home.
If you have a breakdown any-
where in Europe, just call our
Central Emergency Service
number from any telephone.
Our experts are on duty there
day and night to arrange assist-
ance for you. They can provide
practical advice on what to do
next and can make arrange-
ments on your behalf, for exam-
ple notifying local emergency
services anywhere in Europe,
recovery and transportation of
the motorcycle to the nearest
authorised workshop, a taxi for
you, and even a replacement
vehicle and hotel accommoda-
tion, if necessary.
BMW Service worldwideAnd if your travels take you
even further afield, you have no
need to worry: we are repre-
sented in more than 100 coun-
tries of the world.
L Note:
BMW service partners are listed
in the Service Stations booklet
for Europe or Asia, available
from any authorised BMW
motorcycle dealer.
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