Controls and features -> Alarm system* for your BMW 3 Series 1997-2006

38 Luggage compartment  
Alarm system*  
When opening the convertible top,  
refer to page 41, make sure that  
the luggage compartment is set up for  
this, otherwise you may damage some-  
thing.<  
You can have a signal set as  
acknowledgment for both arming  
and disarming the alarm.<  
The concept  
The vehicle alarm system responds:  
>When a door, the hood or the lug-  
gage compartment lid are opened  
>To movement inside the vehicle –  
interior motion sensor  
>Altering the vehicle tilt, e.g. as would  
occur while attempting to steal the  
wheels or tow the vehicle – tilt alarm  
sensor system  
You can also open the luggage com-  
partment lid when the system is armed  
by pressing the button of the remote  
control, refer to page 32. When it is  
closed, the lid is once again secured.  
>To interruption of battery voltage.  
The system responds to unauthorized  
vehicle entry and attempted theft by  
simultaneously activating the following:  
>Sounding an acoustic alarm for  
30 seconds  
>Activating the hazard warning flash-  
ers for approx. five minutes  
>Flashing the high beams on and off in  
rhythm with the hazard warning flash-  
ers.  
To arm and disarm the alarm  
system  
When the vehicle is locked or unlocked  
by using a key or with the remote con-  
trol, the alarm system is also simulta-  
neously armed or disarmed.  
Alarm system*  
39  
armed: an attempted entry has been  
detected in the period since the sys-  
tem was armed.  
The tilt and interior motion sen-  
sors are inadvertently switched off  
when convenience closing of the win-  
dows is interrupted within the first  
10 seconds and then started again. If  
this happens, they must be disarmed  
and reactivated.<  
Following triggering of an alarm, the  
indicator lamp will flash continuously.  
Avoiding unintentional alarms  
The tilt alarm sensor and interior motion  
sensor may be deactivated at the same  
time. You can do this to prevent a false  
alarm from being triggered in garages  
with elevator ramps, for instance, or  
when the vehicle is transported by train:  
Indicator lamp displays  
>The indicator lamp below the interior  
rearview mirror flashes continuously:  
the system is armed  
Lock the vehicle twice to arm the sys-  
tem. Press button on the remote control  
twice in succession or lock the vehicle  
twice with the key.  
>The indicator lamp flashes when it is  
armed: the door(s), the hood or lug-  
gage compartment lid are not com-  
pletely closed. Even if you do not  
close the alerted area, the remaining  
areas are deadlocked, and the indi-  
cator lamp flashes continuously after  
ten seconds. However, the interior  
motion sensor is not activated  
The indicator lamp lights up briefly and  
then flashes continuously. The tilt alarm  
sensor and the interior motion sensor  
are deactivated as long as the system is  
armed.  
>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  
Interior motion sensor*  
Deactivate the interior motion sensor –  
see Avoiding unintentional alarms – if  
persons or animals are left in the vehi-  
cle.  
>If the indicator lamp flashes for  
ten seconds when the system is dis-