BMW 540I SEDAN 2000 Service Manual

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RepairsIndexOverview Controls Car care Technology Data
Luggage compartment lid/TailgateLocks Ð sedan onlyOnly the master keys (refer to page 34)
fit in the lock of the luggage compart-
ment lid.Opening separatelyTurn the master key to the left in the
luggage compartment lock clear to the
stop Ð the luggage compartment lid will
open slightly.
The luggage compartment is locked
again as soon as you close the lid.394de624
Secure separatelyTurn the master key to the right past the
resistance point and then pull it out in
the horizontal position.
This locks the luggage compartment
lid/tailgate and disconnects it from the
central locking system. This feature can
be used to prevent unauthorized
access to the luggage compartment
when you surrender the door and igni-
tion key (refer to page 34) for valet park-
ing, for instance.394de064
To open from outsidePress the button (arrow): The luggage
compartment lid/tailgate opens slightly.Manual operation(in the event of an electrical failure)
sedan:
Turn the master key to the left in the
luggage compartment lock clear to the
stop Ð the luggage compartment lid will
open slightly.
The luggage compartment is locked
again as soon as you close the lid.
sport wagon:
Refer to page 181.394de009

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Luggage compartment lid/TailgateOpening from inside the carProvided the luggage compartment lid/
tailgate has not been locked separately,
you can use this button to open it when
the vehicle is stationary.390de324
Rear window Ð sport wagonSmall items can be loaded or unloaded
quickly if the rear window is opened
separately.
Press the button (arrow): The rear win-
dow opens slightly. It can now be tilted
up.
Push the window down to close it.
If pointed or sharp-edged objects
could strike the rear window while
driving, be sure to provide protection
around all edges. If you do not do this,
the heating conductors of the rear win-
dow could be damaged.< 392de159
Closing Ð sedanThe handle recess (arrow) next to the
lock mechanism is designed to assist
you in closing the luggage compart-
ment lid.394de128

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RepairsIndexOverview Controls Car care Technology Data
Luggage compartment lid/TailgateClosing Ð sport wagonYou can pull the tailgate down by plac-
ing both hands in the handle recesses
(arrows).
To close the tailgate, merely press it
down gently. The closing process will
then be carried out automatically.
To avoid injuries, be sure that the
travel path of the tailgate is clear
when it is closed, as with all closing
procedures.< 392de160
When the tailgate of the sport
wagon is opened, the clearance
from the ground to the upper edge is
more than 6.5 feet (two meters). Please
keep this in mind when opening the tail-
gate (in a garage, for example).<
Operate the vehicle only when the
luggage compartment lid/tailgate
is completely closed. Otherwise,
exhaust fumes could penetrate the
interior of the vehicle. Should it be
absolutely necessary to operate the
vehicle with the luggage compartment
lid/tailgate open:
>Close all windows. Shut the sliding/
tilt sunroof
>Increase the airflow of the automatic
climate control to a high level. Refer
to page 101.<

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Luggage compartmentLuggage strapsUse the straps on the floor of the lug-
gage compartment to secure smaller
suitcases.
Movement is reduced, when objects
are placed on the straps.
The fittings at the corners of the lug-
gage 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 120.
394de302
HangerOn the left-hand side of the luggage
compartment is a hanger for fastening
shopping bags, packages or similar
items.394de144

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RepairsIndexOverview Controls Car care Technology Data
Alarm systemThe conceptThe vehicle alarm system responds:
>When a door, the hood or the lug-
gage compartment lid/tailgate is
opened
>To movement inside the vehicle
(interior motion sensor)
>To variations in the vehicle tilt sensor
such as occur during attempts to
steal the wheels or tow the vehicle
>To 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
activated 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
with the key or the remote control, the
alarm system is also simultaneously
armed or disarmed.
The interior motion sensor is activated
approx. 30 seconds after you have fin-
ished locking the car.
The system indicates that it has been
correctly armed by switching on the
hazard flashers for a single cycle and by
emitting an acoustical signal.
You can have different acknowl-
edgment messages set to confirm
arming and disarming (not released at
this time).<
When the system is active, you can still
gain access to the luggage compart-
ment by pressing button 3 on the
remote control transmitter (refer to
page 39). When you close the luggage
compartment lid/tailgate, it locks again.
Indicator lamp displays>The indicator lamp below the interior
rearview mirror flashes continuously:
The system is armed
>The indicator lamp flashes during
arming: Door(s), the hood or luggage
compartment lid/tailgate are not
completely closed. Even if you do not
close the alerted area, the system be-
gins to monitor the remaining areas,
and the indicator lamp flashes contin-
uously after 10 seconds. However,
the interior motion sensor is not acti-
vated
>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 armed390de020

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Alarm system>If the indicator lamp flashes for
10 seconds when the system is
disarmed: An attempted entry has
been detected in the period since the
system was armed.
Following triggering of an alarm, the
indicator lamp will flash continuously.Avoiding unintentional alarmsThe tilt alarm sensor and interior motion
sensor may be switched off at the same
time to prevent a false alarm from being
triggered (in garages with elevator
ramps, for instance), or when the
vehicle is transported by trailer or train:
Lock the vehicle (arm the alarm system)
twice in succession: Press button 2 on
the remote-control transmitter twice
(refer to page 38), or turn the key in the
door lock to the right (lock) twice in
succession (refer to page 36).
The indicator lamp lights up briefly and
then flashes continuously. The tilt alarm
sensor and the interior motion sensor
are deactivated for as long as the
system remains armed.
Interior motion sensorThe illustration depicts the transmitter
and receiver of the interior motion sen-
sor.
In order for the interior motion sensor to
function properly, the windows and
sliding/tilt sunroof must be completely
closed.
Nevertheless, you should deactivate the
interior motion sensor (refer to the
previous column) if you intend to leave
the windows or sliding/tilt sunroof
open.390de153

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RepairsIndexOverview Controls Car care Technology Data
Electric power windowsOpen and close windowsIn ignition key position 1 or 2:
>Depress the rocker switch until you
feel resistance:
The window continues moving for as
long as you maintain pressure on the
switch
>Press the rocker switch beyond the
resistance point:
The window moves automatically.
Press the switch a second time to
stop the window.390de055
After the ignition has been switched off:
>You can still operate the windows as
long as neither of the front doors has
been opened. To open the window,
press the switch beyond the resis-
tance point.
Remove the key from the ignition
when you leave the vehicle, so
that children cannot operate the power
windows and possibly injure them-
selves.<
For the convenience mode via the door
lock or the remote control, refer to
pages 36 or 37.Safety featureA contact strip is integrated into the
inner side of each of the upper window
frame sections. If pressure is exerted
against this contact strip while a win-
dow is being raised, the system will
respond by stopping the window and
then retracting it a small distance.
Despite this safety feature, be ex-
tremely careful that the closing
path of the window is not obstructed
whenever it is closed. Otherwise, an
object might not touch the contact strip
in some situations (very thin objects, for
instance).
You can override this safety feature by
pressing the switch beyond the resis-
tance point and holding it.
Because the power windows are sealed
at high pressure to prevent wind noise
when closed, a powerful motor is re-
quired for efficient closing. When clos-
ing the windows, always be sure that
they are not obstructed in any way. Un-
supervised use of these systems can
result in serious personal injury. Re-
move the ignition key to deactivate the
electric power windows whenever you
leave the car. Never leave the keys in
the car with unsupervised children.
Never place anything that could ob-
struct the driver's vision on or next to
the windows.<

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Electric power windows Sliding/Tilt sunroof
*
Safety switchYou can use the safety switch to deacti-
vate the rear power window switches
(when children are riding in the rear
seats, for instance).
Press the safety switch whenever
children are riding in the rear of
the vehicle. Careless use of the power
windows can lead to injury.< 390de131
To prevent injuries, exercise care
when closing the sliding/tilt sun-
roof and keep it in your field of vision
until it is shut.
Before leaving the car, switch off the
electric sunroof mechanism by taking
out the ignition key. Do not leave chil-
dren unattended in the vehicle with ac-
cess to vehicle keys. Use of the key can
result in starting of the engine and oper-
ation of vehicle systems such as power
sunroof, etc. Unsupervised use of these
systems can result in serious personal
injury.<
You can avoid pressure or drafts in the
passenger compartment when the sun-
roof is open or lifted by opening the air
vents in the dashboard and increasing
the air supply as required. Refer to
pages 98, 101.
If the sunroof is completely open, air
disturbances may be caused in the ve-
hicle when you are driving at higher
speeds. Close the roof as far as is nec-
essary until this natural phenomenon
ceases.
For the convenience mode via the door
lock or the remote control, refer to
page 36 or 37.
Lifting Ð opening Ð closingFrom ignition key position 1, press the
switch or slide it to the desired direction
until you feel resistance.
When lifting, the headliner retracts
several inches.
After the ignition has been switched off,
you can still operate the sliding/tilt sun-
roof as long as neither of the front doors
has been opened.Automatic
* opening and closing
Press the appropriate end of the control
switch past the resistance point and
then release it. 390de636

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RepairsIndexOverview Controls Car care Technology Data
Sliding/Tilt sunroof
*
Other automatic operations are:
>With the sunroof open, press the
switch briefly toward "Lift:" The sun-
roof automatically extends to its fully
raised position
>With the sunroof lifted, press the
switch briefly toward "Open:" The
sunroof automatically opens all the
way.
Pressing the switch again briefly stops
the motion.Safety featureIf the sliding/tilt sunroof encounters re-
sistance at a point roughly past the
middle of its travel when it is closing,
the closing cycle is interrupted and the
sliding/tilt sunroof will open again
slightly.
Despite this safety feature, be ex-
tremely careful that the closing
path of the sunroof is not obstructed
whenever it is closed. Otherwise, trig-
gering the closing-force limitation may
not be ensured in some situations (with
very thin objects, for instance). You can
override this safety feature by pressing
the switch beyond the resistance point
and holding it.<
Sliding/Tilt sunroof with glass
moonroof
*
The options and control procedures are
essentially the same as those previ-
ously described for the sliding/tilt sun-
roof. In order to open the raised roof,
press the control switch towards
"Open" until the roof has reached the
desired position.
The headliner insert slides back some-
what when you raise the sunroof. When
the sunroof is opened the headliner
retracts with it. The headliner will then
automatically remain in its retracted
position, but can be repositioned as
desired.
Power loss or malfunctionAfter interruptions in the electrical
supply (when the battery is discon-
nected, for instance), the sunroof may
only lift. To reinitialize the mechanism:
1 Raise the sliding/tilt sunroof all
the way
2 Press and hold the switch for
approximately twenty seconds.
In the event of an electrical malfunction,
you can also operate the sliding/tilt sun-
roof manually. Refer to page 180.390de637

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For maximum safety, please comply
with the following instructions when ad-
justing a seat:
Never try to adjust your seat while
operating the vehicle. The seat
could respond with unexpected move-
ment, and the ensuing loss of vehicle
control could lead to an accident. Wear
the safety belt firmly against your body
at all times. In the event of a frontal im-
pact, a loose lap belt could slide over
your hips, leading to abdominal injury.
In addition, the safety belt's restraint ef-
fectiveness is reduced if the belt is
worn loosely.
Never ride with the backrest reclined to
an extreme horizontal angle (especially
important for front passengers to re-
member). Keep the backrest relatively
upright to minimize the risk of "sliding
under" the safety belt and sustaining in-
jury in an accident.
Do not slide the seats to the rear when
the vehicle is at an extreme angle (on
garage ramps or steep slopes, for in-
stance), to prevent the shoulder strap's
automatic height adjustment mecha-
nism from disengaging.<
1 Tilt angle (only driver's side)
2 Forward/Back adjustment
3 Cushion height
4 Backrest angle
5 Head restraint height
Adjust the tilt angle of the head restraint
by rotating it.
Comply with the adjustment
instructions in the preceding
column. Failure to do so could result in
diminished personal safety.< 380de023
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 tilt-angle
slightly to reduce muscular tension.
Please remember that you should
always remain able to grasp the entire
periphery of the steering wheel without
straightening your arms.Lumbar support
*
Refer to the BMW comfort seat on the
next page.
Seat adjustment Electric power seats