ECU BMW 325XI 2001 User Guide

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Alarm system
*
The conceptThe vehicle's alarm system responds:
>When a door, the hood or the
luggage compartment lid is opened.
>To movement inside the vehicle
(interior motion sensor).
>To a change of the vehicle's tilt Ð if
someone attempts to steal the wheels
or tow the vehicle without authoriza-
tion, for example.
>If there is an interruption of battery
voltage.
The system responds to unauthorized
vehicle entry and attempted theft by
simultaneously activating the following:
>Sounding an acoustical alarm for
30 seconds.
>The hazard warning flashers are acti-
vated for approx. five minutes.
>The high beams flash on and off in
the same rhythm.
To activate and deactivate the
alarm systemWhen the vehicle is locked or unlocked
by using a key or with the remote
control, the alarm system is also simul-
taneously armed or disarmed.
The interior motion sensor and the tilt
alarm sensor are activated approx.
30 seconds after you have finished
locking the vehicle.
If the alarm system has been armed
correctly, the hazard warning flashers
flash once.
You can have a signal set as
acknowledgment for both acti-
vating and deactivating the alarm.<
You can also open the luggage
compartment lid when the system is
armed by pressing button 3 of the
remote control (refer to page 37). When
it is closed, the lid is once again
secured.
Indicator lamp displaysThe indicator lamp is located under the
interior rearview mirror.
>When the indicator lamp flashes
continuously: the system is armed.
>If the indicator lamp flashes during
arming of the system: the door(s), the
hood or luggage compartment lid are
not completely closed. Even if you do
not close the alerted area, the system
begins to monitor the remaining
areas, and the indicator lamp flashes
continuously after 10 seconds.
However, the interior motion sensor
is not activated.
>If the indicator lamp goes out when
the system is disarmed: no manipula-
tion or attempted intrusions have
been detected in the period since the
system was armed.463us010

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IndexDataTechnologyRepairsCar careControlsOverview
For your personal safety when adjusting
the seat position, please follow the
instructions below carefully:
Never try to adjust your seat while
operating the vehicle. The seat
could respond with an unexpected
movement, and the ensuing loss of
vehicle control could lead to an acci-
dent.
Be sure that the safety belt remains
firmly against your body at all times. In
the event of a frontal impact, a loose lap
belt could slide over the hips, leading to
abdominal injury. In addition, the safety
belt's restraint effectiveness is reduced
if the belt is worn loosely.
Never ride with the backrest reclined to
an extreme angle (especially important
for the front passenger to remember).
If you do so, there is a risk that you will
slide under the safety belt in an acci-
dent, thus reducing the protection
provided by the safety belt.<
Correct sitting postureTo reduce strain on the spinal column,
sit all the way back in the seat and rest
your back fully against the backrest.
The ideal sitting posture is achieved
with your head extending from your
spine in a straight line. For long-
distance driving, you may wish to
increase the backrest angle slightly to
reduce muscular tension. You should
be able to grasp the steering wheel at
its highest point with your arms slightly
bent.
After a seat adjustment, adjust the
height of the safety belt also. Refer to
page 54.1 Longitudinal adjustment
Pull the lever and slide the seat to the
desired position.
After releasing the lever, apply pres-
sure to the cushion to ensure that the
latch engages securely.
2 Cushion height
Pull the lever and apply weight to or
remove weight from the seat as
required.
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Seat adjustment Mechanical seat

50n
Power seat
*
Seat and mirror memory
*
BMW sports seat1 Tilt angle
2 Backward/Forward adjustment
3 Cushion height
4 Backrest angle
The head restraint (refer to page 48)
and the thigh support area (refer to
page 49) are adjusted manually.
Please refer to the adjustment
instructions on page 47 to reduce
the risk of personal injury.<460de025
You can store and recall three different
driver's seat and outside mirror posi-
tions.
The adjustment setting of the lumbar
support is not saved in the memory.To store1 Turn the key to ignition key
position 1 or 2.
2 Adjust your seat and outside mirrors
to the desired position.
3 Press the
M
EMORY button: the indi-
cator lamp in the button lights up.
4 Press memory button 1, 2 or 3 as
desired: the indicator lamp goes out.
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To select a stored setting Convenience function:
1 Open the driver's door after unlocking
or set the ignition key in position 1.
2 Briefly press memory button 1, 2 or 3
as desired.
The adjustment cycle is canceled
immediately if you press a seat
adjustment switch or one of the
memory buttons.
Security function:
1 With the driver's door closed and the
ignition key either removed or in posi-
tion 0 or 2.
2 Maintain pressure on the desired
memory button (1, 2 or 3) until the
adjustment process is completed.
If you press the
M
EMORY button acci-
dentally: press the button a second
time; the indicator lamp goes out.
Do not select a memory position
while the vehicle is moving. If you
do so, there is a risk of accident from
unexpected seat movement.<

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IndexDataTechnologyRepairsCar careControlsOverview
Safety belts Airbags For child restraint system installation,
refer to page 61.
If the safety belt system has been
subjected to the stresses involved
in an accident or otherwise damaged:
have the entire safety belt mechanism
replaced by your BMW center,
including the safety belt tensioner. In
addition, have your BMW center
inspect the safety belt anchors. If a
child restraint system was in the vehicle
during an accident, consult the manu-
facturer's instructions regarding
replacement.<
Vehicles with through-loading
system: please comply with the
instructions for the center safety belt on
page 109.
Child restraint systems
*
Never install a rear-facing child
restraint device on the front
passenger seat. If you do so, the child
could be injured when the airbag is trig-
gered.
Children should always ride in the rear
and the restraint systems should be
secured with the outer belts.
The centre seat belt should only be
used when it is necessary to secure
three child restraint systems.
Do not modify the child restraint system
in any way. If you do so, it will not
provide your child with maximum
protection.<
1 Front airbags for driver and
passenger
2 Side impact Head Protection System
for driver and passenger (front)
3 Side airbags for driver and pasenger
(front and rear
*)
Protective effectThe front airbags supplement the three-
point safety belts by providing additional
protection for the front-seat occupants
in the event of a severe frontal collision
when the protection afforded by the
belts alone may no longer be sufficient.
The Side impact Head Protection
System and side airbags help provide
protection in the event of a side impact.
Each of the side airbags is designed to
help support the upper body.460de140

60n
Transporting children safelyCommercially 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 systems can increase the risk
of injury to children. Always read and
follow the instructions that come with
the system.
If you use a child restraint system with a
tether strap, three additional tether
anchorage points (refer to the arrows in
the illustration) have been provided.
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. Remove the
cover first on the middle location.380us123
If the respective seating position is
fitted 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
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 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
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
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
airbag and the child. Older children
should be tightly secured with the safety
belt. 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.
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
practice for securing child restraint
systems in motor vehicles.

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IndexDataTechnologyRepairsCar careControlsOverview
Transporting children safelyChild seat securityAll 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.462us014
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.
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.

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IndexDataTechnologyRepairsCar careControlsOverview
Automatic transmission with Steptronic
*
D Drive (automatic shift program)This position is designed for driving
under all normal operating conditions.
All forward gears are available, the
Adaptive Transmission Control (ATC) is
fully operational."Kickdown"In the "Kickdown" mode, you achieve
the maximum performance.
To activate this mode, depress the
accelerator pedal beyond the full-
throttle position, at which a resistance
point must be overcome.
M/S Manual operation and
Sport ProgramShifting from D into M/S activates the
Sport Program. This is indicated by
"SD" in the gear selection display. This
position is recommended for a perfor-
mance-oriented driving style.
With the first brief touch, the automatic
transmission shifts from the Sport
Program to the manual mode.
When you move the selector lever
forward in the "+" direction, the trans-
mission shifts up. When the lever is
moved back in the "Ð" direction, the
transmission shifts down. M1 to M5
appear in the gear indicator.463de062
Upshifts or downshifts will only be
carried out by the ATC at appropriate
engine speeds and road speeds. If the
engine speed is too high, for instance, a
downshift will not be executed. The gear
selected will appear briefly in the instru-
ment cluster followed by the current
gear.
To accelerate quickly in the
manual mode (to pass another
vehicle, for instance), shift down manu-
ally or employ the kickdown mode.<
Shifting from M/S to the selector lever
positions P, R and N is possible only by
going through D.

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IndexDataTechnologyRepairsCar careControlsOverview
Through-loading system
*
The rear backrest is divided into two
sections (one-third and two-thirds of the
width of the seat). For carrying longer
objects, you can fold down either
section of the backrest separately.
To unlock, pull the lever corresponding
to the section (arrow).460de154
The rear backrest section will move
for-ward slightly when it is unlocked.
Reach into the gap and pull the backrest
down.
When you close the backrest, be
sure that the retainer engages
correctly. If it is not correctly engaged,
transported cargo could enter the
passenger compartment from the
luggage compartment during brake
applications or evasive maneuvers and
endanger the vehicle occupants.<
The fittings at the corners of the
luggage compartment provide you
with a convenient means of attaching
luggage nets
* and flexible straps for
securing suitcases and luggage.
Refer also to "Cargo loading" on
page 112.
460de153
Center 3-point-safety belt in the
rear
*
You can retract the 3-point-safety belt
in the rear, before folding the through-
loading system back:
>Loosen the safety belt and put the
buckle latch that is on the end of the
safety belt into the bracket mounted
on the rear window shelf (arrow).
To install a child restraint system
always use the outer belts. The
centre seat belt should only be used
when it is necessary to secure three
child restraint systems.
Do not modify the child restraint system
in any way. If you do so, it will not
provide your child with maximum
protection.<462us054

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IndexDataTechnologyRepairsCar careControlsOverview
Ski bag
*
LoadingWith through-loading system:
1 Fold the center armrest outward.
Loosen the trim from the upper
Velcro¨ fastener and place it on the
armrest.
2 Press button 1 downward and swing
the cover forward.
3 Extend the ski bag between the front
seats. The zipper provides conve-
nient access to stored items. It may
be opened to allow the ski bag to
dry.
4 Press knob 2: the cover in the
luggage compartment is unlocked.
To store the ski bag, perform the above
steps in reverse sequence.394de119
Securing the load
Secure the skis or other objects in
the bag by tightening the strap
with the buckle.<
Please be sure that your skis are clean
before loading them into the bag. Avoid
damage from sharp edges during load-
ing.
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Cargo loadingStowing cargo If you are transporting a load in your
BMW:
>Load heavy cargo as far forward as
possible Ð directly behind the back-
rests or the luggage compartment
partition Ð and as low as possible.
>Cover sharp edges and corners.
>Do not pile objects higher than the
top edge of the backrest.460de160
>If you are transporting very heavy
loads when the rear seat is not occu-
pied, secure the outer safety belts in
the opposite buckles (refer to the
illustration).460de185
Securing the load >For small, light items, use the rubber-
lined non-skid side of the floor mat or
secure with a luggage compartment
net
* or elastic straps (refer to
page 41).
>For large, heavy pieces, see your
BMW center for load-securing
devices
*. Lashing eyes (arrow) are
provided at the inner corners of the
luggage compartment for attaching
these load-securing devices.
>Comply with the information
enclosed with the load-securing
devices.
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