Central Locking - SMART 453 Series Introduction Into Service Manual

Central locking

The central locking system is part of the standard equipment
on model series 453.
As on the predecessor model series, the master control unit
of the central locking is the center SAM control unit.
The central locking system comprises locking and unlocking
of the vehicle doors as well as opening of the trunk lid/
liftgate.
The following operating possibilities are available to the
customer:
• Locking and unlocking with the transmitter key
• Manual unlocking with the transmitter key at the driver
door lock
• Locking or unlocking via the instrument panel switch
group
• Remote liftgate/trunk opening via transmitter key
• Opening of liftgate/trunk lid via handle switch
The vehicle doors can always be opened from the inside with
the door handle at a vehicle speed of < 7 km/h, regardless
of the status of the central locking. This unlocks all of the
vehicle doors.
Note
b
The radio signal for unlocking the door is picked up by
an antenna integrated in the SAM control unit. There
is no external antenna for the central locking.
Introduction of the New smart fortwo coupé and smart forfour | Model Series 453
– This printout will not be recorded by the update service. Status: 06/2014 –
Automatic functions
If the vehicle exceeds a speed of 7 km/h, the doors are auto-
matically locked by the center SAM control unit. This function
can be activated and deactivated with a locking switch. This
function is deactivated by default.
The vehicle is also automatically locked by the center SAM
control unit if the vehicle doors are not opened two minutes
after the vehicle is unlocked.
If a crash signal is sent out by the Supplemental Restraint
System control unit in the event of an accident, all of the ve-
hicle doors are unlocked by the central locking.
1
View of liftgate of C 453
1 Handle switch
1
View of liftgate of W453
1 Handle switch
Central locking
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