key battery BMW 525I SPORT WAGON 2001 Owners Manual

22n
Indicator and warning lampsTechnology that monitors itselfMany of the systems of your BMW
monitor themselves automatically, both
during engine starts and while you are
driving. Indicator and warning lamps
that are identified by "l" are tested for
proper functioning whenever the igni-
tion key is turned. They each light up
once for different periods of time.
If a fault should occur in one of these
systems, the corresponding lamp does
not go out after the engine is started or
it lights up while the vehicle is moving.
You will see how to react to this below.
Red: stop immediately
Battery charge current l
The battery is no longer being
charged. There is a malfunction
of the alternator V-belt or in the charg-
ing circuit of the alternator. Please con-
tact the nearest BMW center.
If the ribbed V-belt is defective, do
not continue driving. The engine
could be damaged due to overheating.
If the ribbed V-belt is defective, in-
creased steering effort is also re-
quired.<
Engine oil pressure l
Comes on while the engine is
running and the "STOP!ENGINE
OILPRESS" message appears in the
Check Control: stop vehicle immedi-
ately and switch off engine. Check level
of oil in engine, top up as required. If oil
level is correct: please contact the
nearest BMW center.
Do not continue driving. The en-
gine could be damaged because
of inadequate lubrication.<
Tire Pressure Control (RDC)
* l
In addition, there is an acousti-
cal warning signal: a tire failure
has occurred. Reduce vehicle speed
immediately and stop the vehicle. Avoid
hard brake applications. Do not over-
steer. For additional information: refer
to page 103.
Parking brake
*,
brake hydraulic system l
Comes on when you engage the
parking brake. For additional informa-
tion: refer to page 70.
Comes on although the parking brake is
released: have the brake fluid level
checked. Before driving further, be
sure to read the notes on pages 146
and 168.
Also comes on with the message
"CHECK BRAKE PADS" in the Check
Control.
Parking brake* warning lamp/
Brake hydraulic system for
Canadian models.

36nKeys
1 The master keys with remote control
determine the functions of the Key
Memory. Refer to page 60.
There is an extended-life battery
in every master key that is
charged automatically in the ignition
lock as you drive.
For this reason, if you have a master
key that is otherwise not used, use that
key approximately once every year
while driving for an extended period to
charge the battery. Refer also to
page 39.<
2 Spare key for storage in a safe place such as in your wallet. This key is not
intended for continuous use.
463de023
3 Door and ignition keyThe locks for the luggage compart-
ment lid/tailgate, rear backrest and
glove compartment cannot be oper-
ated with this key. This is useful for
valet parking, for instance.Replacement keys
Replacement keys are available exclu-
sively through your authorized BMW
center. Your BMW center is obligated
to ensure that a person requesting a
key is authorized to do so since the
keys belong to a security system (refer
to "Electronic vehicle immobilizer" on
page 37).
If possible, take all of the master
keys that belong to the vehicle
with you when you pick up your re-
placement key.
Whenever you receive a new replace-
ment key, turn that key to position 2 in
the ignition lock once (ignition switched
on) and then back. This allows the elec-
tronic vehicle immobilizer to "learn" the
new key. <

IndexDataTechnologyRepairsCar careControlsOverview
39n
Opening and closing – from the outsideWith the remote controlThe remote control makes opening and
locking the doors of your vehicle very
convenient. Furthermore, it provides
three additional functions which you
can only execute via the remote control:
>To switch on interior lamps, refer to
page 40
With this function, you can also
"search for" your vehicle, when
parked in an underground garage, for
instance.
>To open the luggage compartment/
tailgate, refer to page 41
The luggage compartment lid/tailgate
will open slightly, regardless of
whether it was previously locked or
unlocked.
>Panic mode
In case of danger, you can trigger the
alarm.
When the vehicle is unlocked, the anti-
theft system is simultaneously deacti-
vated, the alarm system is disarmed
and the interior lamps are switched on.
Locking the vehicle activates the anti-
theft and alarm systems and switches
the interior lamps off.
You can have a signal set as an
acknowledgment message that
the vehicle is closed correctly.<
Master keysKeys with a transmitter for remote
control are master keys. Refer to
page 36.
Since children might be able to
lock the doors from the inside,
take the vehicle's keys with you so that
the vehicle can be opened again from
the outside at any time.< 390us604
Master keys that are used repeat-
edly are always ready for opera-
tion, since the battery in the key is
charged automatically in the ignition
lock as you drive.
If it is no longer possible to unlock the
vehicle via the remote control, the
battery is discharged. Use this key
while driving for an extended period in
order to charge the battery. Refer also
to page 36.
To prevent unauthorized use of the
remote control, surrender only the door
and ignition key 3 or the spare key 2
(refer to page 36) when leaving the
vehicle for valet parking, for example.
In the event of a system malfunction,
please contact your BMW center. You
can also obtain replacement keys
there.<

IndexDataTechnologyRepairsCar careControlsOverview
47n
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 arm and disarm 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 signals set to confirm
arming and disarming.<
When the system is armed, you can still
gain access to the luggage compart-
ment lid/tailgate by pressing button 3
on the remote control (refer to page 41).
When you close the luggage compart-
ment 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
begins to monitor the remaining ar-
eas, and the indicator lamp flashes
continuously after 10 seconds. How-
ever, 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.390de020

IndexDataTechnologyRepairsCar careControlsOverview
69n
Starting the engine Switching off the engineStarting the engine>Start the engine. Do not press the
accelerator pedal.
Do not actuate the starter for too
short a time. Do not turn it for
more than approx. 20 seconds. Release
the ignition key immediately as soon as
the engine starts.
Do not allow the engine to warm up by
leaving it running while the vehicle re-
mains stationary. Instead, begin driving
immediately at a moderate engine
speed.
BMW 540i with automatic transmission:
Your BMW is equipped with the conve-
nience starting feature. Simply turn the
key to position 3 (starter) and then re-
lease it immediately.
The starter continues to operate auto-
matically.
The automatic starting mode will not
operate if the battery voltage is low.
Should this condition arise, it remains
possible to jump-start the engine (refer
to page 200).<
Should the engine fail to start on the
first attempt (if it is very hot or cold, for
instance):
>Press the accelerator pedal halfway
down while engaging the starter.
Cold starts at extremely low tempera-
tures, from approx. +57 (–156)
and at elevations above 3,300 ft
(1,000 meters):
>Be sure to let the starter remain
engaged somewhat longer the first
time (approx. 10 seconds).
>Press the accelerator pedal halfway
down while engaging the starter.
Engine idle speed is controlled by the
engine computer system. Increased
speeds at start-up are normal and
should decrease as the engine warms
up. If engine speed does not decrease,
service is required.
To prevent the battery from discharg-
ing, always deactivate electrical de-
vices which are not in use. Switch the
ignition off when the vehicle is not
being driven.Turn the ignition key to position 1 or 0.
Never remove the ignition key
while the vehicle is rolling. The
steering locks, making it impossible to
steer the vehicle.
Always remove the ignition key and en-
gage the steering lock before leaving
the vehicle.
Vehicles with manual transmission:
Always engage the parking brake
when parking on slopes and inclined
surfaces, since not even placing the
lever in 1st gear or reverse may not
provide adequate resistance to rolling.
Vehicles with automatic transmission:
Place the selector lever in "Park."<
Vehicles with automatic transmission
*:
The vehicle must be stationary and the
selector lever in "Park" before you can
remove the ignition key.

IndexDataTechnologyRepairsCar careControlsOverview
99n
Computer in the MID
*
After three incorrect code inputs, or
three attempts to start the engine with-
out a code input, the alarm will sound
for 30 seconds on vehicles fitted with
an alarm.
Deactivating the alarm in an
emergency:
If you have forgotten the code, proceed
as follows:
1 Disconnect the battery, wait approx.
2 minutes, then reconnect it. Note
that on vehicles with an alarm, this
will sound.
2 Set the ignition key to position 1:
The time display will count down for
the next ten minutes.
3 After ten minutes, start the engine.
If the code becomes available
again in the meantime, it can be
input during the waiting period after
pressing the CODE button.<
Remote controlThe button on the turn signal indicator
lever can be used to select the items of
computer information which are to be
displayed.
To do this, press
>the button on the lever until PROG 1
shows on the display
>the MID buttons in the order in which
you wish the information to be dis-
played.
Each time an entry is stored, the pro-
gram number appears on the display.
To terminate the selection procedure:
Press the right side of the button.390de336
To have all the available information
displayed, press
>the button on the lever until the dis-
play shows PROG 1
>the SET button.
To obtain individual items of informa-
tion, press the button in briefly as often
as necessary.

IndexDataTechnologyRepairsCar careControlsOverview
107n
Interior lamps Reading lampsFootwell lamps The footwell lamps operate in the same
way as the interior lamps.
The reading lamps are located in the
front near the interior lamp. There are
also reading lamps in the rear. They can
be switched on and off with the switch
(arrow) adjacent to each lamp.
In order to conserve the battery,
all of the lamps in the vehicle
are switched off automatically approx.
15 minutes after the ignition key is
turned to position 0.<
394de301

118n
Automatic climate control
*
>Left-hand indicator lamp on – AUC
mode: the system recognizes pollut-
ants in the outside air and blocks the
flow of air when necessary. The sys-
tem then recirculates the air currently
within the vehicle.
Depending on the air quality, the au-
tomatic system then switches back
and forth between outside air supply
and recirculation of the air within the
vehicle.
>Right-hand indicator lamp on: the
flow of external air into the vehicle is
permanently blocked. The system
then recirculates the air currently
within the vehicle.
If you have a multifunction steering
wheel with the recirculated-air button
(refer to page 25), you can also use it to
switch between "Off" and the recircu-
lated-air mode or AUC and the recircu-
lated-air mode.
If the windows should fog over in
the recirculated air mode, switch
the recirculated air mode off and in-
crease the air supply as required.<
Rear window defroster
When the rear window de-
froster is activated, the indica-
tor lamp comes on. The rear window
defroster switches off automatically.
Residual heating mode
The heat which is stored in
the engine is utilized for
heating the interior when the engine
has been switched off (while waiting at
a railroad crossing, for instance).
In ignition key position 1, you can alter
the settings of the automatic climate
control. In ignition key position 0, the
system automatically directs heated air
to the windshield, side windows and
footwells.
This function may be activated
when the outside temperature is
below approx. 597 (156), the engine
is at operating temperature, and the
battery is adequately charged. The LED
on the button will light up when all con-
ditions have been met.<
Draft-free ventilationYou can adjust the blower controls for
the upper body area to select the opti-
mum airflow rates and directions for
your personal requirements:
Use rotary dial 1 to open and close the
airflow through an infinitely-variable
range. You can also use the levers 2 to
change the direction of the airflow.
Set the outlets so that the air flows past
you and does not flow directly onto you.
Rotary dial 3 allows you to adjust the
airflow from these outlets by adding
heat or cooling as desired:
Turn toward blue – colder.
Turn toward red – warmer.390de051

120n
Steering wheel heating
*
Roller sun blind
*
Independent ventilation
*
To activate and cancel the steering
wheel heater, press the button (arrow)
with the ignition key in position 2.
The lamp within the button lights up
when the steering wheel heater is in
operation.
If you have a multifunction steering
wheel without steering wheel heating,
the button for the recirculated-air mode
is in this location (refer to page 25).390de656
To operate, press the key briefly with
the ignition key in position 1 or 2.Roller sun blinds for rear side
windows
*
Use the strap to extract the blinds, then
hook them in the attachment provided.390us718
This system allows you to ventilate the
interior and lower its temperature, using
the blower of the automatic climate
control.
The independent ventilation system is
operated via the Multi-Information Dis-
play (MID) – refer to page 94 – or the
onboard monitor. Refer to the separate
Owner's Manual.
You can set two different times for the
system to start; it will remain active for
30 minutes. You can also turn it on and
off directly. Since the system uses a
substantial amount of electrical current,
you should not activate it twice in suc-
cession without allowing the battery to
be recharged in normal operation
between use.
When a preselected activation time is
set, the independent ventilation system
is operational at outside temperatures
above 607 (166), or by direct switch
activation. It cannot be switched on
when the vehicle is moving.
The air emerges via the vent outlets for
the upper body. Therefore, the vents
must be open for the system to oper-
ate.

194nBattery
Never allow sparks or open
flame near the battery. Do not
smoke in the vicinity of the
battery. Avoid sparks from electrical
cables or electrical equipment. Turn the
key to position 0 in the steering lock
during the disconnection or connection
of the battery. Never short-circuit the
battery terminals. There is a danger of
injury from powerful sparks.
A highly-explosive gas is
generated when the battery is
charged.
If you happen to get acid in your
eyes, rinse thoroughly for
15 minutes with clear water.
Following that, consult a physician
immediately. If you get acid spray on
your skin or clothing, rinse with plenty
of water. If electrolyte is accidentally
swallowed, consult a physician immedi-
ately.
In order to protect the battery
case from ultraviolet radiation,
do not place it in direct sunlight.
A discharged battery can freeze. Store
the battery in areas where the tempera-
ture remains above freezing.
Charge condition
You can read the charge condition
of the battery with the "Magic Eye"
*
(a hydrometer):
> Green: adequate charge.
> Black: not charged adequately.
The battery must be recharged.
Please contact your BMW center.
> Yellow: replace the battery.
The projected service life of the
battery can only be reached if the
battery is fully-charged at all times.
Check the charge condition of the bat-
tery frequently if the vehicle is used pri-
marily for driving short distances. <
390de612
Charging the battery
If the battery is charged in the vehicle:
Do not charge the battery with the
engine running.
Before performing any work on
the electrical system, disconnect
the cable from the negative terminal. If
you do not, short circuits can create the
risk of fire or personal injury. <
If you plan to store the vehicle for more
than four weeks, disconnect the battery
from the vehicle electrical system by
disconnecting the cable at the negative
terminal and then recharge using a suit-
able charging device.
If you intend to store your vehicle for
longer than 12 weeks: remove the bat-
tery, charge it and store it in a cool (but
frost and dust-free) room. Every three
months and before reinstalling the bat-
tery, have it recharged. If it is not
recharged, it will not be serviceable.
Every time the battery is discharged,
especially over extended periods, its
service life is reduced.