Mercedes-Benz A-Class 2020 Operator's Manual page 65

To switch between settings: press the
#
Ü and ß 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:
Pressing the Ü button a second time cen‐
R
trally unlocks the vehicle
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 SmartKey for
an extended period of time, you can reduce the
energy consumption of the respective SmartKey.
To do so, deactivate the key functions.
To deactivate: press the ß button on the
#
SmartKey twice in quick succession.
The battery check lamp of the SmartKey
flashes twice briefly and lights up once.
To activate: press any button on the Smart‐
#
Key.
%
When the vehicle is started with the Smart‐
Key in the marked space of the center con‐
sole, the key functions are automatically
activated ( page 132).
/
Removing/inserting the emergency key
To remove: press release knob 1.
#
Emergency key 2 is pushed out slightly.
Pull out emergency key 2 until it engages in
#
the intermediate position.
Opening and closing
% You can use the intermediate position of
emergency key 2 to attach the SmartKey to
a key ring.
Press release knob 1 again and fully
#
remove emergency key 2.
To insert: press release knob 1.
#
Insert emergency key 2 to the intermediate
#
position or fully until it engages.
% Depending on the vehicle's equipment, the
intermediate position is not available.
Replacing the SmartKey battery
& DANGER Serious damage to health
caused by swallowing batteries
Batteries contain toxic and corrosive sub‐
stances. Swallowing batteries may cause
serious damage to health.
There is a risk of fatal injury.
Keep batteries out of the reach of chil‐
#
dren.
63