2000 BMW 328i SEDAN airbag

58n
AirbagsAccident research shows that the safest
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 exam-
ple, a child Ð even though belted Ð may
fall asleep with his or her head against
the side airbag. It may be difficult 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 rec-
ommend 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. served, 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 in-
flation noise may induce a mild tempo-
rary hearing loss in sensitive individu-
als.
For additional information concerning
the airbag system: Refer to pages 137
and 163.
This is the right way for a child to sit in a
child restraint when rear side airbags
(arrow) are provided.
462us012

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IndexDataTechnologyRepairsCar careControlsOverview
Airbags Child restraints
*
This is the right way for a larger child to
sit wearing the safety belt when rear
side airbags (arrow) are provided.462us013
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. Improperly or
inadequately installed restraint sys-
tems can increase the risk of injury to
children. Always read and follow the in-
structions that come with the system.380us123
If you use a child restraint system with a
tether strap, three additional tether an-
chorage points (refer to the arrows in
the illustration) have been provided.
Depending on the location selected for
seating in the rear passenger area, at-
tach the tether strap to the correspond-
ing anchorage point to secure the child
restraint system. Remove the cover first
on the middle location.
If the respective seating position is fit-
ted with a headrest lift the headrest and
pass the tether strap between the
headrest and the seat back.
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 rearward-facing child re-
straint 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 system
(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, since the impact of the

60n
Child restraints
*
Installing a child restraint system
airbag against the child restraint's back-
rest could lead to serious or fatal inju-
ries.
If it is necessary for a child (not an in-
fant) to ride in the front seat, certain pre-
cautions 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 airbag and the
child. Older children should be tightly
secured with the safety belt. Younger
children should be secured in an appro-
priate forward-facing child restraint sys-
tem 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 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.All of the rear belt retractors and the
front passenger's safety belt can be
locked for mounting and securing child
restraint systems.
Information pertaining to this is located
in the immediate vicinity of the buckle
latch of each safety belt.
Lock the safety beltExtract the entire length of the belt from
the inertia reel mechanism. Allow the
reel to retract the belt somewhat and
engage the buckle, then tighten the belt
against the child restraint system. The
retraction mechanism is now locked.
The belt cannot be extracted further.
Always comply with the installation
instructions provided by the manufac-
turer of the child restraint system.462us014
Unlock the safety beltRelease the safety belt, remove the
child's seat and pull the safety belt out
to its end position on the belt retractor.

Overview
Controls and features
Operation, care
and maintenance
Owner service procedures
Technical data
Index Advanced technology
103n
IndexDataTechnologyRepairsCar careControlsOverview
Special operating instructions:
Break-in procedures104
Driving notes104
Catalytic converter105
Antilock Brake System
(ABS)106
Disc brakes108
Brake system109
Winter operation110
Power steering111
Cellular phones112
Radio reception112
Wheels and tires:
Tire inflation pressures113
Tire condition113
Tire replacement114
Tire rotation115
Wheel and tire
combinations116
Winter tires117
Snow chains117
Approved wheel and tire
specifications118Under the hood:
Hood120
Engine compartment122
Washer fluids124
Washer nozzles124
Engine oil125
Coolant128
Brake fluid129
Vehicle Identification
Number130
Care and maintenance:
The BMW Maintenance
System131
Caring for your car132
Airbags137
Vehicle storage137
Laws and regulations:
Technical modifications to the
vehicle138
OBD interface socket139
Car care

137n
IndexDataTechnologyRepairsCar careControlsOverview
Airbags Vehicle storage1 Front airbags for driver and passen-
ger
2 Side impact Head Protection System
(front)
3 Side airbags (front and rear
*)
Important safety notices
Don't remove the airbag restraint
system's gas generator. Testing
and servicing must be performed by
trained technicians only. In the event of
a malfunction, deactivation, or triggered
actuation (as a response to an accident)
of the airbag restraint system, consult
your BMW center for repairs or service
operations.
460de140
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. Do not apply
adhesive materials to these compo-
nents or cover or modify them in any
way. Do not attempt to remove or dis-
mantle the steering wheel.
To ensure compliance with official
safety regulations, have an BMW center
dispose of airbag generators.
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. special procedures if you intend to
store the vehicle for more than three
months.

Overview
Controls and features
Operation, care
and maintenance
Owner service procedures
Technical data
Index Advanced technology
161n
IndexDataTechnologyRepairsCar careControlsOverview
Adaptive Transmission Control
(ATC)162
Airbags163
Dynamic Stability Control
(DSC)163
Radio reception164
Safety belt tensioner164
Interior rearview mirror
with automatic dimming
feature165
Rain sensor166
Tire Pressure Control (RDC)167
Self-diagnostics168
Xenon lamps169
Technol-

163n
IndexDataTechnologyRepairsCar careControlsOverview
Deceleration sensors continuously
monitor the acceleration 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 ade-
quate, 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 designed separation
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 smoke associated
with it dissipates.
The entire process is completed within
fractions of a second.Highly sensitive sensors monitor the
number of revolutions of the wheels.
When equipped with DSC, they also
monitor steering angle, lateral accelera-
tion, brake pressure and the movement
of the vehicle around its vertical axis.
If differences in the wheel speeds occur,
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
drive force and driving stability.
The braking intervention may be ac-
companied by sounds specific to the
system.
Airbags DSC

168n
Self-diagnostics All of the important electrical and elec-
tronic systems in the vehicle are tested
regularly and automatically Ð the driver
does not have to perform any extra
operations 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.460de177
In the same manner, the electrical re-
sistance of the airbag ignition genera-
tors and all of the remaining airbag
components is measured at all times.
Any fault in this system would be de-
tected immediately by a current fluctua-
tion that would necessarily accompany
it. The fault would be indicated immedi-
ately 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 silently in
the background.
Any faults detected during these self-
diagnostics can be read out by your
BMW center during the next regularly-
scheduled maintenance and corrected
with a minimum of time.