Mercedes-Benz C-Class 2014 Owner's Manual page 97

Key
94
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
If the key battery is checked within the signal
reception range of the vehicle, pressing the
& or % button:
locks or
R
unlocks the vehicle
R
i
You can obtain a battery from any quali-
fied specialist workshop.
Replacing the battery
You require a CR 2025 3 V cell battery.
Take the emergency key element out of the
X
key ( page 93).
Y
Press emergency key element ; into the
X
opening in the key in the direction of the
arrow until battery compartment cover :
page 94).
Y
opens. When doing so, do not hold battery
compartment cover : shut.
Remove battery compartment 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 compart-
X
ment cover : into the housing and then
press to close it.
Insert emergency key element ; into the
X
key.
Check the function of all key buttons on the
X
vehicle.