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Key
80
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
batteries replaced at a qualified specialist work-
shop.
Checking the battery
Press the & or % button.
X
The battery is OK 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 battery of the key 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 qualified
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 79).
Y
page 80).
Y
Press emergency key element ; into the
X
opening in the key in the direction of the arrow
until battery compartment cover : opens.
When doing so, do not hold battery compart-
ment cover : shut.
Remove battery compartment cover :.
X
Repeatedly tap the key against your palm until
X
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 contamination.
Insert the front tabs of battery compartment
X
cover : into the housing and then press to
close it.
Insert emergency key element ; into the key
X
(
page 79).
Y
Check the function of all key buttons on the
X
vehicle.
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