ESP BMW 325XI 2003 User Guide

52Passenger safety systems
Airbags1Front driver and passenger-side air-
bags
2Head airbags for driver and front pas-
senger
3Side airbags on the driver and pas-
senger sides front and rear*Protective effectThe front airbags protect the vehicle's
occupants during frontal impacts in
which the protection provided by the
safety belts alone might not be enough
to prevent injury. The head airbags and
side airbags help provide protection in
the event of a collision from the side.
Each of the side airbags is designed to
help support the seat occupant's upper
body.
For information on the correct sitting
posture, refer to page 43.
The side airbags in the rear pas-
senger area* of your vehicle may
already have been deactivated either at
the time of manufacture or by a BMW
center. You may have them activated if
you desire to do so. Please contact
your BMW center for additional infor-
mation.<
The airbags do not deploy in
response to minor collisions, rear
impacts and certain kinds of vehicle
rollover.<
Do not apply adhesive materials to
the cover panels of the airbags,
cover them or modify them in any other
way. Do not remove the airbag restraint
system. In the event of a malfunction,
deactivation or triggered activation – as
a response to an accident – of the air-
bag restraint system, consult your BMW
center for inspection, repair or disas-
sembly. Do not modify or tamper with
either the wiring or the individual com-
ponents in the airbag system. These
include the upholstered cover panels in
the steering wheel, the instrument
panel, the side trim panels in the front
and rear, in the roof panels, and in the
sides of the inside roof lining. Also, do
not attempt to remove the steering
wheel. Unprofessional attempts to ser-
vice the system could lead to failure in
an emergency or undesired airbag acti-
vation, either of which could result in
personal injury. Do not touch the indi-
vidual components immediately after
the system has been activated, as this
could result in personal injury.<
At all times, occupants should sit
upright and be properly restrained
– infants and small children in appropri-
ate child-restraint systems; larger chil-
dren and adults using the safety belts.
Never let an occupant's head rest near
or on a side airbag because the inflating
airbag could cause a serious or fatal
injury. Please note that the word Airbag
imprinted on the door trim panel indi-
cates the airbag's location.
Accident research shows that the saf-
est place for children in an automobile
is in the rear seat. However, a child sit-
ting in the rear seat and not properly
restrained may place his or her head on
or near the airbag, if so equipped. For
example, a child — even though belted
in — may fall asleep with his or her head
against the side airbag. It may be diffi-
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53
cult for a driver to ensure that children
in the rear seat will remain properly
positioned at all times and not place
their heads on or near the side airbag.
Therefore, we recommend that the
rear-seat side airbags, if installed in the
vehicle, be deactivated if children will
travel in the rear seat.
The rear side airbags may already have
been deactivated, either at the time of
manufacture or by a BMW center.
Labels in the door opening should indi-
cate the status of your rear side air-
bags. If you are uncertain of their sta-
tus, or wish to have the airbags
activated or deactivated, please con-
tact your BMW center.<
Even when all these guidelines are fol-
lowed, there is still a small residual risk
of injuries to the face, hands and arms
occurring from airbag deployment in
isolated instances.
The ignition and inflation noise may
induce a mild temporary hearing loss in
sensitive individuals.
Corresponding airbag warning labels
are found on both sun visors.This is the right way a child should sit in
a child restraint when rear side airbags
– see arrow – are provided.
This is the right way a larger child
should sit wearing the safety belt when
rear side airbags – see arrow – are pro-
vided.Indicator lamp
The indicator lamp indicates the
operational status of the airbag
system with the ignition key in
position 1 or higher.
System operational:
>The indicator lamp comes on briefly
when you turn the ignition key to
position 1 or higher.
System malfunction:
>The indicator lamp does not come on
or
Airbags
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54
>the indicator lamp lights up continu-
ously.
If there is a system malfunction, there is
a risk that the airbags will not be trig-
gered within their normal response
range, even if the level of impact would
normally have triggered them.
Have your BMW center inspect the sys-
tem immediately.
Transporting children safelyCommercially available child-restraint
systems are designed to be secured
with a lap belt or with the lap belt por-
tion of a combination lap/shoulder belt.
Improperly or inadequately installed
restraint systems can increase the risk
of injury to children. Always read and
follow the instructions that come with
the system.
Child-restraint system with
tether strapIf you use a child-restraint system with
a tether strap, three additional tether
anchorage points have been provided –
refer to the arrows in the illustration.
To gain access to this anchor fitting lift
the plastic plug, see arrows, with the
help of a screwdriver.
Airbags
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55
Depending on the location selected for
seating in the rear passenger area,
attach the tether strap to the corre-
sponding anchorage point to secure the
child-restraint system, as shown in the
illustration.
If the respective seating position is fit-
ted with a head restraint lift the head
restraint and pass the tether strap
between the head restraint and the seat
back.
It is recommended to readjust the head
restraint in the lowest possible position.
Adjust the tether strap according to the
child-restraint manufacturer's instruc-
tions.
Before installing any child-
restraint device or child seat,
please read the following:
Never install a rear-facing child-
restraint system in the front passenger
seat of this vehicle.
Your vehicle is equipped with an airbag
supplemental restraint system for the
front passenger. Because the backrest
on any rear-facing child-restraint sys-
tem – of the kind designed for infants
under 1 year and 20 lbs/9 kg – would
be within the airbag's deployment
range, you should never mount such a
device in the front passenger seat,
since the impact of the airbag against
the child-restraint's backrest could lead
to serious or fatal injuries.
If it is necessary for a child – not an
infant – to ride in the front seat, certain
precautions should be taken. First,
move the passenger seat as far away
from the instrument panel as possible.
This important precaution is intended to
maximize the distance between the air-
bag and the child. Older children
should be tightly secured with a safety
belt after they have outgrown a booster
seat that is appropriate for their age,
height, and weight. Younger children
should be secured in an appropriate
forward-facing child-restraint system
that has first been properly secured
with a safety belt.
Never install a rear-facing child-
restraint system in the front passenger
seat.
We strongly urge you to carefully read
and comply with the instructions for
installation and use provided by the
child-restraint's manufacturer whenever
you use such a device. Do not attempt
to modify child-restraint systems. If you
do this, the protection provided by
these systems could be impaired.
Be sure that all occupants – off all ages
– remain properly and securely
restrained at all times.<
All rear seating positions in your vehicle
meet the recommendations of
SAEJ1819, an industry-recommended
practice for securing child-restraint sys-
tems in motor vehicles.
Transporting children safely
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77 Technology for safety and driving convenience
Park Distance Control (PDC)*The conceptPDC provides extra safety and conve-
nience during parking maneuvers.
Acoustic signals alert you to the
momentary distance to an object
behind your vehicle. The system fea-
tures four ultrasonic sensors mounted
in your rear bumper. The monitoring
range for the two corner sensors
extends outward roughly 2 ft/60 cm,
while two centrally located sensors
detect objects at distances of up to
approx. 5 ft/1.50 m.
PDC is a parking aid that can
identify objects if they are
approached slowly, as is generally the
case when parking. Avoid driving
towards objects rapidly; due to underly-
ing physical principles, the system may
otherwise alert you too late for you to
take evasive steps.<
The system starts to operate automati-
cally approx. one second after you
select Reverse or move the selector
lever into the R position with the igni-
tion key in position 2.
Let this short period elapse before
driving backwards.<
PDC is deactivated when you shift back
out of reverse.
You can have a signal set to con-
firm that the PDC has been acti-
vated. indicated by a tone sounding at various
intervals. As the distance between vehi-
cle and object decreases, the intervals
between the tones become shorter. A
continuous tone indicates the pres-
ence of an object less than 1 ft/30 cm
away.
The warning signal is canceled after
approx. three seconds if the distance to
the object remains constant during this
time – if you are moving parallel to
a wall, for instance.
System malfunctions will be indicated
by a continuous high-pitched tone
when the system is activated the first
time. Please refer the problem to your
BMW center.
PDC does not remove the driver's
personal responsibility for evaluat-
ing the distance between the vehicle
and any objects. Even when sensors
are involved, there is a blind spot in
which objects cannot be detected. This
applies especially in those cases where
the system approaches the physical
limits of ultrasonic measurement, as
occurs with tow bars and trailer cou-
plings, and in the vicinity of thin or
wedge-shaped objects. Moreover, low
objects that have already been
detected – such as a curb edge – can
disappear out of the detection range of
the sensors before a continuous tone
sounds.
Loud sources of sound from outside or
inside the vehicle could drown out the
PDC signal tone.<
Keep the sensors clean and free
of ice or snow in order to ensure
that they will continue to operate effec-
tively.
Do not apply high pressure spray to the
sensors for a prolonged period of time.
Always maintain a distance of more
than 4 in/10 cm.<
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78
Automatic Stability Control plus Traction (ASC+T)*The conceptASC+T optimizes vehicle stability and
traction, especially when just starting
off, when accelerating or when going
through curves.
ASC+T is ready each time you start the
engine.
ASC+T incorporates the Automatic Dif-
ferential Brake (ADB) and Cornering
Brake Control (CBC) functions.
Additional information on ASC+T is
found in the "Technology" brochure.Indicator lamp
The indicator lamp in the instru-
ment cluster goes out shortly
after you switch on the ignition,
refer to pages 18, 19, 20.
>The indicator lamp flashes: ASC+T
controls the drive and braking forces
>The indicator lamp stays lit: ASC+T
has been switched off with the but-
ton; ADB is operational. ADB control
intervention is not indicated.
The indicator and the brake
warning lamps will remain on
continuously yellow:
The ASC+T and ADB have been
switched off manually or there is
a system malfunction.
You can still drive the vehicle perfectly
well without ASC+T.
In the event of a fault, please consult
your BMW center.
Indicator and warning lamp for
Canadian models.
Switching off the ASC+T/
activating the ADBPress the ASC button briefly; the indi-
cator lamp comes on and stays on.
ASC+T has been switched off; ADB is
operational.
In the following rare situations, it may
be effective to activate the ADB for a
brief period:
>When rocking the vehicle or starting
off in deep snow or on loose surfaces
>When driving with snow chains.
To maintain vehicle stability,
always drive with the ASC+T acti-
vated whenever possible.<
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79
Deactivating the ASC+T and ADBPress the ASC button for at least 3 sec-
onds; the indicator lamps and the yel-
low brake warning lamp come on and
stay on.
The systems for enhancing stability and
traction are deactivated, and there is no
active braking intervention or torque
control.
To maintain vehicle stability,
always drive with the ASC+T acti-
vated whenever possible. cator lamp or the indicator lamps will go
out. ADB is deactivated.
The laws of physics cannot be
repealed, even with ASC+T. It will
always be the driver's responsibility to
drive in a manner that matches road
conditions. This is why you should not
use the additional safety margin the
system provides as an excuse to take
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81
Deactivating the DSC and the
DTCHold the DSC button down for at least
3 seconds. The indicator and the yellow
brake warning lamps will remain on
continuously.
The systems for enhancing stability and
traction are deactivated, and there is no
active braking intervention or torque
control.
To maintain vehicle stability,
always drive with the DSC acti-
vated whenever possible. cator lamp or the indicator lamps will go
out. DTC is deactivated.
The laws of physics cannot be
repealed, even with DSC. It will
always be the driver's responsibility to
drive in a manner that matches road
conditions. This is why you should not
use the additional safety margin the
system provides as an excuse to take
risks.
Whenever the DTC is activated, the
DSC is switched off and performs minor
stabilizing intervention.
Do not make any modifications to the
DSC system. Allow only authorized
technicians to perform service proce-
dures on the DSC.<
Dynamic Stability Control (DSC)*
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83
Reactivating the DSCPress the button again; the indicator
lamp goes out.
The laws of physics cannot be
repealed, even with DSC. It will
always be the driver's responsibility to
drive in a manner that matches road
conditions. This is why you should not
use the additional safety margin the
system provides as an excuse to take
risks.
The system does not intervene to
enhance vehicle stability when
switched off.
Do not make any modifications to the
DSC system. Allow only authorized
technicians to perform service proce-
dures on the DSC. OverviewControlsMaintenanceRepairsDataIndex
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84
Hill Descent Control (HDC)*The conceptBy reducing the vehicle's speed on
steep downhill stretches, HDC main-
tains predictable vehicle handling
response to provide you with control of
your BMW during extreme descents.
The vehicle slows to a pace just slightly
faster than walking speed.
HDC is available for activation at vehi-
cle speeds below approx. 22 mph /
35 km/h. When driving down steep
hills, the vehicle reduces speed auto-
matically down to about double walking
speed – approx. 7.5 mph / 12 km/h –
and then maintains this speed at a con-
stant.
You can use the accelerator or brakes
to vary this speed within a range from
approx. 3 mph / 5 km/h to approx.
15 mph / 25 km/h.
In conjunction with the multifunction
steering wheel you can use the +/–
button to set the cruise control to a tar-
get speed in the range from approx.
3 mph / 5 km/h to approx. 15 mph /
25 km/h.
HDC is automatically deactivated once
vehicle speed again exceeds approx.
37 mph / 60 km/h.
To activate the systemPress the HDC button; the green indi-
cator lamp integrated within the button
comes on.
The indicator lamp flashes whenever
the system is actively intervening to
control your speed with automatic
brake applications.To deactivate the systemPress the button again, the indicator
lamp goes out.
HDC is automatically deactivated once
the vehicle accelerates to more than
37 mph / 60 km/h, as well as whenever
you switch off the ignition.
To use HDCWith manual transmission:
You should always ensure that either
reverse or first gear is engaged before
using HDC, as the engine's braking
effect is most pronounced in these
gears, and only reduced engine braking
is available in higher gears.
With automatic transmission: HDC is
available for use in all ranges.System malfunctionsSignaled by the indicator lamp, which
responds to problems by going out
while HDC is in operation or by failing
to come on when you activate the sys-
tem:
HDC is temporarily not available if
brake temperature is too high.
If the DSC indicator lamp comes
on at the same time:
There is a fault in the HDC and
DSC systems. Have your BMW center
inspect this system as soon as possi-
ble.
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