Mercedes-Benz A Series 2015 Owner's Manual page 89

Key
86
H Environmental note
Batteries contain pollutants.
It is illegal to dispose of them
with the household rubbish.
They must be collected sep-
arately and disposed of in an
environmentally responsible
recycling system.
Dispose of batteries in an
environmentally responsible
manner. Take discharged
batteries to a qualified spe-
cialist workshop or to a col-
lection point for used batter-
ies.
Mercedes-Benz recommends that you have
the battery replaced at a qualified specialist
workshop.
Checking the battery
Press the & or % button.
X
The battery is working properly if battery
check lamp : lights up briefly.
The battery is discharged if battery check
lamp : does not light up briefly.
Replace the battery (
X
i
If the key battery is checked within the
signal reception range of the vehicle, press-
ing the & or % button:
locks or
R
unlocks the vehicle
R
i
You can obtain a battery from any quali-
fied specialist workshop.
page 86).
Y
Replacing the battery
You require a CR 2025 3 V cell battery.
Take the emergency key element out of the
X
key ( page 85).
Y
Press emergency key element ; into the
X
opening in the key in the direction of the
arrow until battery tray cover : opens.
When doing so, do not hold cover : shut.
Remove battery tray cover :.
X
Repeatedly tap the key against your palm
X
until battery = falls out.
Insert the new battery with the positive ter-
X
minal facing upwards. Use a lint-free cloth
to do so.
Make sure that the surface of the battery is
X
free of lint, grease and other contamina-
tion.
Insert the front tabs of battery tray cover :
X
and then press to close it.
Insert emergency key element into the key
X
( page 85).
Y
Check the function of all key buttons on the
X
vehicle.