BMW Saloon 3 Series Owner's Handbook Manual page 109

Rest state, see page 45, is established when
the front doors are opened.
Alarm system
General
The alarm system responds to the following
changes when the vehicle is locked:
▷ A door, the bonnet or the boot lid is being
opened.
▷ Movements inside the vehicle.
▷ A change in the vehicle's incline, for instance
if an attempt is made to jack it up and steal
the wheels or to raise it prior to towing away.
▷ An interruption in the power supply from the
battery.
▷ Improper use of the socket for on-board diag‐
nosis OBD.
The alarm system indicates these changes visu‐
ally and audibly:
▷ Audible alarm:
Depending on local regulations, the acoustic
alarm may be suppressed.
▷ Visual alarm:
By flashing the exterior lights.
Switching on/off
The alarm system is switched off and on at the
same time as the vehicle is unlocked and locked
with the vehicle key or Comfort Access.
Opening the doors when the
alarm system is switched on
The alarm system is triggered on opening a door
if the door has been unlocked using the
integrated key in the door lock.
Opening and closing
Online Edition for Part no. xxx - VI/19
Opening the boot lid with the
alarm system switched on
The boot lid can be opened even with the alarm
system switched on.
On closing the boot lid, it is locked again and
monitored, as long as the doors are locked. The
hazard warning lights flash once.
Indicator lamp on the rear-view
mirror
▷ Indicator lamp flashes every 2 seconds:
The alarm system is switched on.
▷ Indicator lamp flashes for approximately
10 seconds before it flashes every 2 sec‐
onds:
The interior movement detector and tilt alarm
sensor are not active because doors, bonnet
or boot lid are not closed correctly. Correctly
closed access points are secured.
If the open access points are then closed, the
interior protection and tilt alarm sensor are
switched on.
▷ The indicator lamp extinguishes after the ve‐
hicle has been unlocked:
No attempt has been made to tamper with
the vehicle.
▷ The indicator lamp flashes after unlocking un‐
til drive-ready state is switched on, but for no
longer than approximately 5 minutes:
The alarm has been triggered.
CONTROLS
109