2000 BMW 323Ci COUPE airbag

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Airbags
For your own safety, please ob-
serve the following precautions
concerning airbags, as otherwise their
protective function may be impaired
and your personal safety endangered.
The following information pertains to all
occupants:
The airbags are supplemental restraint
devices designed to provide extra pro-
tection; they are not a substitute for
safety belts. Wear your safety belt at all
times. The airbags will not be triggered
in the event of a minor accident, a vehi-
cle roll-over, or collisions from the rear.
In this case, the safety belt offers the
best protection.
Airbags are located under the cover
panels in the steering wheel, in the in-
strument panel, in the side trim panels
in the front and rear
*, in the roof panels,
and in the sides of the inside roof lining.
Select a seat position that is comfort-
able and allows the greatest possible
distance from each of the applicable
airbags. Hold the steering wheel at the
rim (hands at the "9 o'clock and
3 o'clock" positions) in order to avoid
injuries to the hands or arms if the air-
bag is triggered.
Never allow any objects to obstruct the
area between the airbag and an occu-
pant.
Do not use the cover panel above the
front passenger airbag as a storage
area.
Never tape the airbag cover panels,
cover them over or alter them in any
other way.
Never install a rear-facing child restraint
device on the front passenger seat.
Children under 13 years of age and
children who are smaller than 5 feet
(150 cm), should only travel in the rear
seat.
If your vehicle is equipped with side air-
bags in the rear, be sure that child seats
are installed correctly and with the
greatest possible distance from the side
trim panels. Do not allow children to
lean out of the child's seat in the direc-
tion of the side trim panels. Otherwise,
serious injuries could occur if the airbag
is triggered.
At all times, occupants should sit up-
right and be properly restrained (infants
and small children in appropriate child
restraint systems; larger children 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" im-
printed on the door trim panel indicates
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
sitting in the rear seat and not properly
restrained may place his or her head on
or near the side airbag, if so equipped.
For example, a child – even though
belted – may fall asleep with his or her
head against the side airbag. It may be
difficult for a driver to ensure that chil-
dren in the rear seat will remain prop-
erly 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 provided,
be deactivated if you plan to transport
children in the rear seat.
The rear seat side airbags may already
have been deactivated, either at the
time of manufacture or by a BMW cen-
ter. Labels in the rear door opening
should indicate the status of your rear
seat side airbags. If you are uncertain of
their status, or wish to have the airbags
activated or deactivated, please contact
your BMW center.<

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RepairsIndexOverview Controls Car care Technology Data
AirbagsEven when all these guidelines are ob-
served, there is still a small residual risk
of injuries to the face, hands and arms
occurring in isolated instances. The ig-
nition and inflation noise may induce a
mild temporary hearing loss in sensitive
individuals.
For additional information concerning
the airbag system, refer to page 135
and 161.
This is the right way a child should sit in
a child restraint when rear side airbags
(arrow) are provided.
462us012
This is the right way a larger child
should sit wearing the safety belt when
rear side airbags (arrow) are provided.462us013

60n
Child restraints
*
All occupants and especially children
should be restrained whenever riding
in a motor vehicle.
Infants or small children should never
be held on the lap of a passenger.
Children should always sit in the rear
and, depending on age, use either a
child restraint system or the existing
safety belts. Accident statistics have
shown that children are safer when
properly restrained in the rear seats
than in the front seating positions.
Infants or toddlers should be secured
with a child restraint system appropri-
ate for their size.
Commercially available child seats
complying with the legal standard are
designed to be secured with a lap belt
or with the lap belt portion of a combi-
nation lap/shoulder belt. 380us123
Improperly or inadequately installed re-
straint systems can increase the risk of
injury to children. Always read and fol-
low the instructions that come with the
system.
If the child restraint of your choice re-
quires the use of a tether strap, three
fastening points (see arrows) have been
provided on the rear shelf for attach-
ment. Ask your BMW center to perform
the necessary work.
Before installing any child restraint
device or child seat, please read
the following:
Never install a rearward-facing child
restraint system in the front passenger
seat of this car.
Your car 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.) would be
within the airbag's deployment range,
you should never mount such a device
in the front passenger seat, as the im-
pact of the airbag against the child re-
straint'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 dashboard 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 the safety belt.
Younger children should be secured in
an appropriate forward-facing child re-
straint system that has first been prop-
erly 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 in-
stallation and use provided by the child
restraint's manufacturer whenever you
use such a device.
Be sure that all occupants (of all ages)
remain properly and securely restrained
at all times.c
All rear seating positions in your vehicle
meet the recommendations of SAE
J1819, an industry recommended prac-
tice for securing child restraint systems
in motor vehicles.

Overview
Controls and features
Operation, care
and maintenance
Owner service procedures
Technical data
Index Advanced technology
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RepairsIndexOverview Controls Car care Technology Data
Special operating instructions:
Break-in procedures104
Driving notes104
Catalytic converter105
Antilock Brake System
(ABS)106
Disc brakes108
Brake system109
Winter operation110
Power steering112
Cellular phones112
Radio reception112
Wheels and tires:
Tire inflation pressures113
Tire condition113
Tire replacement114
Tire rotation114
Wheel and tire
combinations115
Winter tires116
Snow chains116
Approved wheel and tire
specifications117Under the hood:
Hood119
Engine compartment120
Washer fluids122
Washer nozzles122
Engine oil123
Coolant126
Brake fluid127
Vehicle Identification
Number128
Care and maintenance:
The BMW Maintenance
System129
Caring for your car130
Airbags135
Vehicle storage136
Laws and regulations:
Technical modifications to the
vehicle136
OBD connector137

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RepairsIndexOverview Controls Car care Technology Data
Caring for your car Airbags
Cleaning agents can contain sub-
stances that are dangerous or
pose health risks. Therefore always
comply with the warnings and danger
notices on the package.
Open the doors or windows on your
vehicle when cleaning the interior.
Never clean your vehicle with solvents
or other materials not specifically in-
tended for this application.<
1 Front airbag for driver and passenger
2 Side impact Head Protection System
(front)
3 Side airbags (front and rear
* side)
Important safety notices
Do not attempt to remove the gas
generators of the airbag supple-
mental restraint system from the vehi-
cle. Testing and service procedures are
to be performed exclusively by spe-
cially-qualified technicians. In the event
of a malfunction, deactivation or trig-
gered actuation (as a response to an
accident) of the airbag restraint system,
consult your authorized BMW center for
repairs or service operations.
462de207
Do not modify or tamper with either the
wiring or the individual components in
the airbag system. These include the
padded steering wheel hub, the instru-
ment panel, the side trim panels of the
front or rear doors and the roof pillars or
the sides of the headliner. Never tape
the air bag cover panels, cover them
over or alter them in any other way. Do
not remove or dismantle the steering
wheel.
To ensure compliance with official
safety regulations, have an authorized
BMW center dispose of airbag genera-
tors.
Unprofessional attempts to service the
system could lead to failure in an emer-
gency or undesired airbag activation,
either of which could result in personal
injury.<

Overview
Controls and features
Operation, care
and maintenance
Owner service procedures
Technical data
Index Advanced technology
159n
RepairsIndexOverview Controls Car care Technology Data
Adaptive Transmission Control
(ATC)160
Airbags161
Dynamic Stability Control
(DSC)161
Radio reception162
Safety belt tensioner162
Rearview mirror with automatic
dimmer163
Tire Pressure Control (RDC)164
Rain sensor165
Self-diagnostics166
Xenon lamp167

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RepairsIndexOverview Controls Car care Technology Data
Deceleration sensors continuously
monitor the physical forces acting upon
the vehicle. If, as the result of a frontal
collision, a deceleration is reached at
which the protection of the safety belts
alone is no longer adequate, the gas
generators of the driver and passenger-
front airbags are ignited. However, the
passenger-side airbag is only triggered
if an additional sensor has recognized
that the passenger seat is occupied.
In the event of a side collision, the Head
Protection and side airbags in the front
or rear
* are triggered if necessary.
390de319
The airbags located under the marked
covers inflate and unfold in a matter of a
few milliseconds. In this process they
tear through the rated breaking points
of the upholstered covers or press them
out.
Because the inflation process must be
virtually instantaneous, it is necessarily
accompanied by a certain amount of
ignition and inflation noise. The gas
required to inflate the airbags is not
dangerous, and the associated smoke
then dissipates.
The entire process is completed within
fractions of a second.Highly sensitive sensors monitor the
number of revolutions of the wheels,
steering angle, lateral acceleration,
brake pressure and the movement of
the vehicle around its vertical axis.
If differences in the wheel speeds oc-
cur, the system counteracts the danger
of wheelspin by reducing engine torque.
If necessary, the system also responds
with additional application of the brakes
at the rear wheels.
If the system detects an instability in the
vehicle's condition, the braking action
can also be directed to the front wheels
by the DSC in order to help stabilize the
vehicle.
You may need some time to become
accustomed to this system's interven-
tion. However, it provides optimum pro-
pulsive force and driving stability.
The braking intervention may be ac-
companied by a certain degree of
noise.
Airbags DSC

166n
Self-diagnostics All of the important electrical and elec-
tronic systems in the vehicle are tested
regularly and automatically – the driver
does not have to perform any extra op-
erations or adjustments.
The indicator lamps also come on briefly
after the ignition has been turned on.
While you are driving, the functional
status of the actuator motors (for the
windshield wipers, power windows,
seats, sunroof, etc.) is constantly ana-
lyzed by current measurements in their
relays. 462de258
In the same manner, the electrical resis-
tance of the airbag ignition generators
and all of the remaining airbag compo-
nents is measured at all times. Any fault
in this system would be detected imme-
diately by a current fluctuation that
would necessarily accompany it. The
fault would be indicated immediately by
the airbag warning lamp.
Even after you shut off the engine, the
overall functional status of your vehicle
is monitored. For example, all of the
flaps of the heating and ventilation sys-
tem travel to the nearest limit position.
This action ensures that the system will
be able to provide defrosting, regard-
less of other circumstances (if a mal-
function in the heating or ventilation
system should occur during the night
while the vehicle is parked, for in-
stance).
A calibration cycle runs every tenth time
the engine is shut off. During this cycle,
the actuator motors of all the heating
and ventilation flaps travel to their limit
stops in both directions. The limit posi-
tions and the return travel paths are
checked in this manner in order to en-
sure that appropriate adjustments for
the operating elements can be made at
any time.You will hear the sounds of the air flaps
as the heater/ventilation system carries
out its self-diagnostic functions after
the ignition is shut off. All of the other
self-diagnostics functions operate si-
lently in the background.
Any faults detected during these self-
diagnostics can be read out by your
authorized BMW center during the next
regularly-scheduled maintenance and
corrected with a minimum of time.