Mercedes-Benz S-Class Coupe 2018, Operator'S Manual

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If you do not open the vehicle within approx‐
imately 40 seconds after unlocking:
R
the vehicle is locked again
R
anti-theft protection is reactivated
Do not keep the SmartKey together with elec‐
tronic devices or metal objects. This can affect
the SmartKey's functionality.
% If battery check lamp 2 does not light up
after pressing the % or & button, the
battery is discharged.
Activating/deactivating the acoustic locking
verification signal
Multimedia system:
,
Vehicle
.
î Vehicle Set-
tings
.
Acoustic Lock
#
Activate O or deactivate ª the function.
Activating/deactivating the panic alarm
Requirements
% The panic alarm function is only available in
certain countries.
R
The ignition is switched off.
#
To activate: press button 1 for approx‐
imately one second.
A visual and audible alarm is triggered.
#
To deactivate: briefly press button 1 again.
or
#
Press the start/stop button on the dash‐
board (the SmartKey is inside the vehicle).
Changing the unlocking settings
Possible unlocking functions of the SmartKey:
R
Central unlocking
R
Unlocking the driver's door and fuel filler flap
#
To switch between settings: press the
% and & buttons simultaneously for
approximately six seconds until the battery
check lamp flashes twice.
If the unlocking function for the driver's door
and fuel filler flap has been selected:
R
Pressing the % button a second time cen‐
trally unlocks the vehicle.
R
Vehicles with KEYLESS-GO: if you touch
the inner surface of the door handle on the
driver's door, only the driver's door and fuel
filler flap are unlocked.
Reducing the energy consumption of the
SmartKey
All vehicles: if you do not use the vehicle or a
SmartKey for an extended period of time, you
can reduce the energy consumption of the
58 Opening and closing