X
Slide release catch
:
in the direction of the
arrow and, at the same time, remove mechan-
ical key
;
from the key completely.
Inserting the mechanical key
X
Push mechanical key
;
completely into the
key until it engages and release catch
:
is
back in its basic position.
Unlocking/locking the vehicle using
the mechanical key
The door lock for unlocking in an emergency is
on the driver’s door.
X
To unlock the driver's door: insert the
mechanical key fully into the driver's door
lock and turn it counter-clockwise.
The driver’s door is unlocked.
X
To lock the vehicle: lock all doors except the
driver's door from the inside. To do this, press
down the door locking buttons.
X
Insert the mechanical key fully into the driv-
er's door lock and turn it clockwise.
The driver's door is locked.
Battery of the SmartKey
Important safety notes
G
WARNING
Batteries contain toxic and corrosive substan-
ces. If batteries are swallowed, it can result in
severe health problems. There is a risk of fatal
injury.
Keep batteries out of the reach of children. If
a battery is swallowed, seek medical attention
immediately.
H
Environmental note
Batteries contain dangerous
substances. It is against the
law to dispose of them with
the household rubbish. They
must be collected separately
and recycled to protect the
environment.
Dispose of batteries in an
environmentally friendly
manner. Take discharged
batteries to a qualified spe-
cialist workshop or a special
collection point for used bat-
teries.
Mercedes-Benz recommends that you have the
battery changed at a qualified specialist work-
shop.
Checking the battery
X
Press the
&
or
%
button.
If battery check lamp
:
lights up briefly, the
battery is sufficiently charged.
If battery check lamp
:
does not light up
briefly, the battery is empty.
X
Change the battery (
Y
page 70).
If the key battery is checked within the signal
range of the vehicle, pressing the
&
or
%
button results in:
R
lock or
R
unlock the vehicle
i
The battery may be obtained at any qualified
specialist workshop.
Changing the battery
You need a type CR 2025 3 V cell battery.
X
Pull out the mechanical key from the key
(
Y
page 69).
70
SmartKey
Ope
ni
ng
and
cl
os
in
g
