2002 BMW 320i SEDAN key battery

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Keys Central locking systemThe key set1 Master key with remote control unit,
for information on programming the
Key Memory refer to page 55.
You can mark individual keys for
subsequent identification by applying
the colored decals that you received
when accepting delivery of your
vehicle
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 not being used otherwise,
use those keys approximately once a
year while driving for an extended
period to charge the battery, refer also
to page 29.<
2 Spare key for storage in a safe place,
such as in your wallet. This key is not
intended for constant use
3 Door and ignition key
The locks for the luggage compart-
ment lid and the glove compartment
cannot be operated with this key Ð
this is useful for valet parking, for
instance
The conceptThe central locking system is ready for
operation whenever the driver's door is
closed. The system engages and
releases the locks on the
>doors
>luggage compartment lid
>fuel filler door.
The central locking system can be
operated
>from outside via the remote control
as well as via the driver's door lock
>from inside by pressing a button.
Activating it from inside does not lock
the fuel filler door, refer to page 32.
When the system is actuated from the
outside, the anti-theft system is acti-
vated simultaneously. Both the door
locks and release handles remain
locked. The alarm system is also acti-
vated or deactivated.
If locked from the inside, the central
locking system unlocks automatically in
the event of an accident, except on
doors that have been locked individu-
ally using the lock buttons, refer to
page 31. In addition, the hazard
warning flashers and interior lamps
come on.

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OverviewControlsMaintenanceRepairsDataIndex
Opening and closing Ð via the remote controlThe conceptThe remote control gives you an excep-
tionally convenient method for
unlocking and locking your vehicle.
Furthermore, it provides two additional
functions which you can only execute
via the remote control:
>To switch on interior lamps, refer to
page 30.
With this function, you can also
search for the vehicle, when parked
in an underground garage, for
instance
>To open the luggage compartment
lid, refer to page 30.
The luggage compartment lid will
open slightly, regardless of whether it
was previously locked or unlocked.
Whenever you unlock (lock) the vehicle,
you simultaneously deactivate (activate)
the anti-theft system, disarm (arm) the
alarm system and switch the interior
lamps on (off).
You can have a signal set to
confirm that the vehicle's locks
have engaged securely.<
Since children might be able to
lock the doors from the inside,
always take the vehicle keys with you
so that the vehicle can be opened again
from the outside at any time.<
If it is no longer possible to lock
the vehicle via the remote control,
the battery is discharged. Use this key
while driving for an extended period in
order to recharge the battery.
To prevent unauthorized use of the
remote control, surrender only the door
and ignition key or the spare key, for
example when leaving the vehicle for
valet parking, refer to page 28.
In the event of a system malfunction,
please contact your BMW center. You
can also obtain replacement keys
there.<
1 Unlock and convenience opening
2 Lock and secure, interior lamp activa-
tion, disarming tilt alarm sensor and
interior monitor sensor
3 Open the luggage compartment lidTo unlockPress the button once to unlock the
driver's door.
Press the button a second time to
disengage all vehicle locks.

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OverviewControlsMaintenanceRepairsDataIndex
Starting the engine Switching off the engine
Do not actuate the starter for too
short a time, but do not actuate it
for more than approx. 20 seconds.
Release the ignition key immediately
when the engine starts.
Do not allow the engine to warm up by
leaving it running while the vehicle
remains stationary. Instead, drive off
immediately at a moderate engine
speed.<
If the engine does not 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 of roughly +5 7 (Ð15 6) or below
and at altitudes of over 3,300 ft
(1,000 m):
>On the first start attempt, engage the
starter for a longer period (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 startup are normal and
should decrease as the engine warms
up. If engine speed does not decrease,
service is required.
To prevent the battery from discharging,
always deactivate electrical devices
that are not in use. Switch the ignition
off when the vehicle is not being driven.
Extended starting attempts, char-
acterized by excessively frequent
or long periods with the starter
engaged, can lead to catalyst
damage.<
Turn the ignition key to position 1 or 0.
You should never remove the igni-
tion key when the vehicle is in
motion, as the steering lock could
engage.
When you leave the vehicle, always
remove the ignition key and engage the
steering lock.
Vehicles with manual transmission:
Always engage the parking brake when
parking on hills and slopes, as first gear
or reverse may not provide adequate
resistance to rolling.
Vehicles with automatic transmission:
Place the selector lever in "Park."<

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Interior lampsThe interior lamps operate automati-
cally.Switching the interior lamps on
and off manuallyPress button 1 briefly.
If you want the interior lamps to remain
off all the times, press and hold the
button for approx. 3 seconds.
Press the button briefly to revert to
normal operation.Front reading lamps
*
Switch on and off with the button 2
adjacent to each lamp.
Rear reading lampsSwitch on and off with the button adja-
cent to each lamp.
To avoid subjecting the battery to
excessive loads, all of the lamps
within the vehicle are automatically
switched off approx. 15 minutes after
you turn the ignition key to position 0.<