Mercedes-Benz 2012 A Class - Manual (Page 72)

A visual and audible alarm is triggered if the
alarm system is primed and you open:
R
the vehicle with the emergency key ele-
ment
R
a door
R
the tailgate
R
the bonnet
X To stop the alarm: insert the key into the
ignition lock.
The alarm is switched off.
or
X Press the % or & button on the key.
The alarm is switched off.
The alarm is not switched off, even if you
close the open door that has triggered it, for
example.
Tow-away protection
Function
An audible and visual alarm is triggered if your
vehicle's angle of inclination is altered while
tow-away protection is primed. This can occur
if the vehicle is jacked up on one side, for
example.
Activating
X Make sure that:
R
the doors are closed.
R
the tailgate is closed.
Only then is the tow-away protection
primed.
X Lock the vehicle with the key.
Tow-away protection is primed after
approximately 60 seconds.
Deactivating
X Unlock the vehicle with the key.
or
X Insert the key into the ignition lock.
Tow-away protection is switched off auto-
matically.
Deactivating
X Remove the key from the ignition lock.
X Press button :.
Indicator lamp ; lights up briefly.
X Lock the vehicle with the key.
Tow-away protection is deactivated.
Tow-away protection remains deactivated
until:
R
the vehicle is unlocked again
R
a door is opened and closed again
R
the vehicle is locked again
To prevent a false alarm, deactivate the tow-
away protection if you lock your vehicle and
it:
R
is being transported
R
is being loaded onto a ferry or car trans-
porter, for example
R
is parked on a movable surface, e.g. in a
split-level garage
Interior motion sensor
Function
When the interior motion sensor is primed, a
visual and audible alarm is triggered if move-
ment is detected in the vehicle interior. This
can occur if someone reaches into the vehicle
interior, for example.
70
Anti-theft systems
Safety