Mercedes-Benz C-Class-Saloon 2020 Owner's Manual page 77

74 Opening and closing
Activating/deactivating the acoustic locking
verification signal
Multimedia system:
Vehicle î Vehicle settings
4 5
Acoustic lock
5
Activate O or deactivate ª the function.
#
Please note:
%
The selected setting for the acoustic locking
verification signal must comply with the rele‐
vant national road and traffic regulations. In
some countries, including Germany, using
the acoustic locking verification signal is for‐
bidden by traffic laws (in accordance with
§16 Para. 1 and §30 Para. 1 of the German
national road traffic regulations). The driver
of the vehicle must comply with these regu‐
lations. In countries where the use of this
function is forbidden, this function is not
activated in the vehicle and must not be acti‐
vated.
Changing the unlocking settings
Possible unlocking functions of the key:
Central unlocking
R
Unlocking the driver's door and fuel filler flap
R
To switch between settings: press the
#
Ü and ß buttons simultaneously for
approximately six seconds until the indicator
lamp flashes twice.
Options if the unlocking function for the driver's
door and fuel filler flap has been selected:
To unlock the vehicle centrally: press the
R
Ü button twice.
Vehicles with KEYLESS-GO: if you touch
R
the inner surface of the door handle on the
driver's door, only the driver's door and fuel
filler flap are unlocked.
Deactivating the key functions
If you do not use the vehicle or a key for an
extended period of time, you can reduce the
energy consumption of the respective key. To do
so, deactivate the key functions.
Internal use only
To deactivate: press the ß button on the
#
key twice in quick succession.
The key indicator lamp flashes twice briefly
and lights up once.
To activate: press any button on the key.
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When the vehicle is started with the key in
the stowage compartment of the centre con‐
sole, the key functions are automatically
activated ( page 156).
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Removing/inserting the emergency key
Removing the emergency key