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er's door or the driver's and co-driver's
door: press the % button a second time.
Removing and inserting the emergency key
%
The anti-theft alarm system (ATA) is triggered
when you unlock and open the vehicle using
the emergency key (
/
To remove: slide release catch
#
direction of the arrow and at the same time,
remove emergency key
pletely.
To insert: push emergency key
#
pletely into the key until it engages and
release catch
1
is back in its basic position.
Replacing the key battery
& DANGER Serious damage to health
caused by swallowing batteries
Batteries contain toxic and corrosive substan‐
ces. Swallowing batteries may cause serious
damage to health.
There is a risk of fatal injury.
Keep batteries out of the reach of chil‐
#
dren.
If batteries are swallowed, seek medical
#
attention immediately.
+
ENVIRONMENTAL NOTE Environmental
damage due to improper disposal of bat‐
teries
Batteries contain pollutants. It is
illegal to dispose of them with the household
rubbish.
Requirements:
R
Changing the battery
Mercedes-Benz recommends that you have the
battery changed at a qualified specialist work‐
shop.
#
page 59).
1
in the
2
from the key com‐
2
com‐
#
#
#
#
#
Opening and closing
#
Dispose of batteries in an
environmentally responsible manner.
Take discharged batteries to a qualified
specialist workshop or to a collection
point for used batteries.
You require a CR 2025 3 V cell battery
Remove the emergency key (
Press emergency key
2
into the opening in
the key in the direction of the arrow until bat‐
tery compartment cover
1
doing so, do not hold battery compartment
cover
1
shut.
Tap the key against the palm of your hand so
that battery
3
falls out of the battery com‐
partment.
Insert the new battery into the battery tray
with the positive pole facing upwards. Use a
lint-free cloth to do so.
Install battery compartment cover
key casing with the front lugs first and push it
closed.
Slide emergency key
2
back into the key
(
page 43).
/
43
page 43).
/
opens. When
1
to the
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