BMW 528I Owner's Manual page 46

Alarm system
46n
> 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 alarms
The 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 sensor
The 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.
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