2002 BMW 745LI SEDAN warning light

At a glanceControlsDriving tipsCommunicationsNavigationEntertainmentMobilityReference

15

Indicator and warning lamps
Technology that monitors itself

The indicator and warning lamps identified
by the

l

symbol are subjected to an oper-
ation check each time you switch on the
ignition or start the engine. They each light
up once for different periods of time.
When a malfunction occurs in a monitored
system, the corresponding lamp will either
fail to go out when the engine is started, or
it will come on again during normal driving.
For information on how you should respond
when this happens, please refer to the
pages indicated.
Please fasten safety belts

l

50
DSC Dynamic Stability
Control

l

89
DTC Dynamic Traction Control89
ABS Antilock Braking System

l

91
Parking brake/Brake system
hydraulic circuits/DBC Dynamic
Brake Control

l

62/ 91/ 178
Parking brake/Brake hydraulic
sytems/DBC Dynamic Brake
Control for Canadian models.
Parking brake62,65
Parking brake62,65
Automatic parking brake Ð Auto-
matic Hold

l

63,65 Engine

l

180
Airbags

l56
Turn signal indicators71
High beams/headlamp flasher97
Front fog lamps97
ColorsThe indicator and warning lamps can light
up in different colors and combinations.
The following section explains the signifi-
cance of the individual colors as well as
how you should respond when they
appear.
>Red:
Stop the vehicle immediately
or
an important reminder
>Red and yellow:
To drive; drive cautiously
>Yellow:
Have the system inspected at the earliest
opportunity
or
for your information
>Green
For your information
>Blue:
For your information.

Technology for comfort, convenience and safety
88
Technology for comfort, convenience
and safetyPDC Park Distance Control*

The concept The PDC assists you when you are parking.
Acoustic signals inform you of the distance
to an obstacle. Four ultrasonic sensors in
both the front and rear bumpers monitor
the distance to the nearest object. The
monitoring range of the front and two rear
corner sensors extends outward roughly
2 ft (60 cm), while the rear bumper's two
centrally located sensors detect objects at
distances of up to approximately 4.9 ft
(1.50 m). Automatic function Whenever the ignition is on the system
automatically assumes operational status
each time the selector lever is pressed
briefly in R. Manual activationPress the button, the indicator lamp lights
up.
The system is automatically deactivated
once the vehicle travels approximately
165 ft (50 m) or exceeds a speed of roughly
18 mph (roughly 30 km/h); the indicator
lamp goes out. You can reactivate the
system manually as needed.
Manual deactivation Press the button again; the indicator lamp
goes out. Acoustic signals The signal indicating the distance to the
nearest obstacle is directional. Thus, an
object detected to the left rear of the
vehicle will be indicated by a signal tone
from the left rear speaker, etc. As the
distance between vehicle and object
decreases, the intervals between the tones
become shorter. The signal tone becomes
continuous once the distance to the
nearest object falls to below roughly 1 ft
(30 cm).
The warning signal is canceled after
approximately 3 seconds when the
distance to an object remains constant
during this time (if you are moving parallel
to a wall, for instance). Malfunctions The indicator lamp within the button
flashes and a status message appears in
the Check Control panel.
Please take note of the supplementary
information provided in the Control Display.
Switch the system off and have the cause
of the malfunction corrected by your BMW
center. PDC with visual alert

Technology for comfort, convenience and safety
90 The indicator lamp and the brake
warning lamp remain on continu-
ously:
DSC, DTC and DBC have been
deactivated or a system malfunc-
tion is present.
When the system is off, the stability main-
tenance functions described above are no
longer available. The vehicle will remain
completely operational, however, without
DSC.
Please respond to any malfunctions by
referring the problem to your BMW center.
Indicator and warning lamps on
Canadian models.
Activating DTC Dynamic Traction
Control You may find it useful to briefly activate
DTC under the following special circum-
stances:
>When rocking the vehicle and starting off
in deep snow or on loose road surfaces
>When ascending snow-covered hills,
and when driving in deep or on hard-
packed snow
>When driving with snow chains.
Select the "Settings" menu. Select "DTC"
and confirm your entry. DTC is now acti-
vated. The "DTC" indicator lamp in the
Control Display lights up.
When DTC is operating, DSC is
restricted to limited functionality up
to vehicle speeds of approx. 45 mph (70 km/h). Control intervention to maintain
stability is reduced.<
To deactivate DTC again Select the "Settings" menu. Select "DTC"
and confirm your entry. DTC is now deacti-
vated. The "DTC" indicator lamp in the Info
Display goes out. To deactivate DSC Select the "Settings" menu. Select "DSC"
and confirm your entry. DSC is deactivated.
The indicator lamp in the Info Display
remains on continuously.
Deactivating DSC automatically deacti-
vates DTC as well. The systems for
enhancing stability and traction are deacti-
vated, and there is no active braking inter-
vention or torque control.
A status report appears in the Check
Control panel. Please take note of the addi-
tional information in the Control Display
panel.
To maintain optimal stability, drive
with the system on whenever
possible.< To reactivate DSC Select the "Settings" menu. Select "DSC"
and confirm your entry. DSC is now on. The
indicator lamp in the Info Display goes out.
The laws of physics cannot be
repealed, even with DSC. An appro-
priate driving style always remains the
responsibility of the driver. Avoid using the
additional safety margin provided by the
system as an excuse for taking unneces-
sary risks.
When DTC is active, DSC provides only

At a glanceControlsDriving tipsCommunicationsNavigationEntertainmentMobilityReference
91
limited system response up to a speed of
approx. 45 mph (70 km/h). Intervention for
stability-enhancement is reduced. Do not
make any modiÞcations to the DSC system.
Never allow anyone other than authorized
professional technicians to carry out
service or repairs on the DSC system.< Dynamic Brake Control DBC

When you apply the brakes rapidly, this
system automatically produces the
maximum braking force boost and thus
helps to achieve the shortest possible
braking distance during "panic stops." This
system exploits all of the benefits provided
by ABS.
Do not reduce the pressure on the brake
pedal for the duration of the brake applica-
tion. When the brake pedal is released, the
DBC is deactivated.
In the event of a malfunction, the
warning lamp comes on with a
yellow lamp. Have the system
checked and repaired at your BMW center
as soon as possible.
Check Control messages, refer to page 80.
Please note the supplementary information
provided in the Control Display.
Warning lamp on Canadian models.Driving stability control/
ABS Antilock Brake System The concept ABS enhances active safety by preventing
the wheels from locking under braking.
ABS incorporates CBC and EBV. In case of malfunction
If the indicator lamp lights up in
yellow, this indicates that ABS has
been deactivated in response to a
system malfunction. Conventional braking
efficiency remains available without limita-
tions. Please have the system inspected at
your BMW center.
Cornering Brake Control CBC CBC is a technical advance based on ABS.
It provides further enhancements in vehicle
stability and steering response during lane
changes and cornering at high rates of
lateral acceleration. EBV Electronic brake-force
distribution EBV controls the brake system's applica-
tion pressure at the rear wheels to ensure
stable deceleration. In case of malfunction
If the brake system warning lamp
lights up in red, appearing together
with the yellow lamps for ABS and
DSC: the stability control is no
longer operational.
If all three lamps light up in yellow:
malfunction in the stability control
systems.
While you may continue, you should
remember to proceed cautiously and drive
defensively while avoiding full brake appli-
cations.
Please have the system checked at the
nearest BMW center.
Check Control status messages, refer to
page 80. Please note the supplementary
information provided in the Control Display.
Indicator and warning lamps on
Canadian models.
Dynamic Drive The concept Dynamic Drive minimizes body roll and
optimizes vehicle stability during cornering
and evasive maneuvers.

Technology for comfort, convenience and safety
94
In the event of loss in tire pressure If the indicator lamp symbol in the Check
Control lights up in yellow, and a message
also appears, this indicates that the infla-
tion pressures in the tires have fallen to
below the specified level, which is normal
in every tire after a certain amount of time.
This alerts you to have the tires inflated to
the specified pressures as soon as
possible.
Please take note of the additional informa-
tion in the Control Display panel.
If you are prompted to check the tire
pressure shortly after a correction has
been made, this indicates that the
corrected values were not accurate. Please
check the inflation pressure again and
make corrections according to the inflation
pressure table. Then reinitialize the
system.< Flat tire If you have a flat tire, the indicator lamp
symbol in the Check Control will light up in
red, and a message will appear. In addition,
a gong sounds.
If this occurs, reduce vehicle speed imme-
diately and stop the vehicle. Avoid hard
and sudden steering and braking maneu-
vers. Replace the damaged tire.
The spare tire provided with your
vehicle is equipped with the elec-
tronics required to support RDC operation;
once the spare tire is installed, the pressure
in this tire will also be monitored following
system initialization.
Have the tires changed at your BMW
center. Your BMW center has the informa-
tion needed for working with RDC and is
equipped with the necessary special
tools. radio frequency as RDC can generate inter-
ference signals that may prevent the
system from operating as intended. The symbol will appear in yellow in the
Check Control panel and a message will
appear.
You will also see the same message
>in the event of a system fault
>if a wheel is mounted without the
appropriate electronics
>if, in addition to the spare tire, additional
wheels with RDC electronics are on board.
Please refer to the additional information
supplied in the Control Display, and have
the system inspected at your BMW center.
Self-leveling suspension*

In the event of malfunction
A Check Control message
appearing together with this symbol
indicates a malfunction in the self-
leveling suspension. Please take note of
the additional information in the Control
Display panel.
Stop and inspect the vehicle. If the rear of
the vehicle is visibly lower than the front,
possibly accompanied by a tilt noticeable
when you compare the left rear with the
right rear, you should respond by immedi-
ately proceeding to the nearest BMW
center. Drive with appropriate caution in
the meantime. The vehicle has reduced
ground clearance and driving comfort may
be noticeably reduced. Even if the attitude
of the vehicle is normal, you should consult
the nearest BMW center if the warning
lamp indicates a system fault.
Adaptive brake lamp The adaptive brake lamp indicates the
intensity with which you are applying your
brakes to drivers of following vehicles.

At a glanceControlsDriving tipsCommunicationsNavigationEntertainmentMobilityReference
95
The display consists of two stages:
>Normal braking:
The brake lamps in the tail lamp assemblies
and the high-mount brake lamp on the rear
tray light up during braking.
>Heavy braking and braking with ABS:
The tail lamps also light up with the same
intensity as the standard brake lamp units
to enhance the warning effect of the brake
lamps.

Lamps
96
LampsParking lamps/low beams Parking lamps (side marker lamps)

With the switch in this position, the
front, rear and side vehicle lighting
is switched on. You can use the side
marker lamps for parking. For lighting on
one side for parking as an additional
feature, refer to page 97.
Low beams
When you switch off the ignition
with the headlamps on, the head-
lamps go out, and only the parking
lamps remain on.
"Follow me home" lamps:
After parking the vehicle and
switching off the headlamps, you can use
the headlamp flasher control to activate the
headlamps (low beam) for a period of
roughly 40 seconds. You also have the
options of extending this period or, as an
alternative, having this function deacti-
vated.<
"Lamps on" warning If you switch off the ignition while the head-
lamps are on, when you subsequently open
the driver's door a buzzer will sound for
several seconds, while the Check Control
will provide you with an additional reminder
in the form of a message alerting you to the
fact that the headlamps have not been
switched off
.
Daytime driving lamps
*
If you wish, you can leave the light switch in
the low-beam position:
All external lamps go out when you switch
off the ignition.
Always observe all applicable laws
governing the use of daytime driving lamps.
You can switch on the parking lamps when
needed using the standard procedure
described under Parking lamps.
You can have the daytime driving
lamps on your vehicle programmed to
operate as desired.< Automatic headlamp control
When you set the switch to this
position, the system activates and
switches the headlamps on and off
(low beams) in response to changes in
ambient light conditions, for instance, in
tunnels, at dawn and dusk, and in rain and
snow. The green indicator lamp next to the
symbol is illuminated when the low beams
are on.
Following automatic activation the
vehicle's external lighting remains on
when you switch on the fog lamps.<
The automatic headlamp control
cannot serve as a substitute for your
personal judgment in determining when the
lamps should be switched on in response
to ambient lighting conditions. For
example, the system cannot detect fog. To
avoid safety risks, you should always
switch on the lamps manually under these
conditions.<
You can have the sensitivity of the
headlamp control system adjusted on
your vehicle.<

At a glanceControlsDriving tipsCommunicationsNavigationEntertainmentMobilityReference
119
Brake system Braking with ABS The best way to achieve optimal response
from the ABS is to apply maximum pres-
sure to the brake pedal during emergencyÐ
panic stops. Since the vehicle maintains
steering responsiveness, you can never-
theless avoid possible obstacles with a
minimum of steering effort.
Pulsation at the brake pedal combines with
sounds from the hydraulic circuits to indi-
cate to the driver that ABS is in its active
mode.
Do not drive with your foot resting on
the brake pedal. Even light but
consistent pedal pressure can lead to high
temperatures, brake wear and possibly
even brake failure.< Disc brakes
Driving in wet conditions While driving in wet conditions and in
heavy rain, it is a good idea to apply light
pressure to the brake pedal every few
miles. Monitor traffic conditions to ensure
that this maneuver does not endanger
other road users. The heat generated in this
process helps dry the pads and rotors to
ensure that full braking efficiency will then
be available when you need it. Hills You can retain full and unimpaired braking
efficiency by downshifting to a gear in
which only minimal brake applications are
needed when descending long or steep
downhill stretches.
You can further enhance the engine's
braking effect by selecting a lower gear in
the automatic transmission's manual
mode, downshifting as far as first gear on
extremely steep stretches, refer to
page 68. This strategy helps you avoid
placing excessive loads on the brake
system.
Corrosion When the vehicle is driven only occasion-
ally, during extended periods when the
vehicle is not used at all, and in operating
conditions where brake applications are
less frequent, there is an increased
tendency for corrosion to form on rotors,
while contaminants accumulate on the
brake pads. This occurs because the
minimal pressure which must be exerted by
the pads during brake applications to clean
the rotors is not reached.
Should corrosion form on the brake rotors,
the brakes will tend to respond with a
pulsating effect that even extended appli-
cation will fail to cure.
Never allow the vehicle to coast with
the transmission in neutral Ð or with
the engine switched off; there is no engine
braking when the transmission is in neutral,
and no power-assist for brakes and
steering when the engine is not running.
Never allow floor mats, carpets or any other
objects to protrude into the area around the
accelerator and brake pedals and obstruct
their movement.< Brake pads
If the brake pad wear indicator lamp
appears in the Check Control,
accompanied by a text: please take
careful note of the additional information in
the Control Display panel.
Warning lamp for Canadian models.
The brake pads have reached their
minimum pad thickness. Have them
replaced at your BMW center as soon as
possible.
For your own safety: use only brake
pads that BMW has released for your
particular vehicle model. Because BMW
cannot assess the suitability of other brake
pads for use on your vehicle, we are unable
to assume continued responsibility for the
vehicle's operating safety if non-approved
pads are installed.<