X
Push release catch
:
in the direction of the
arrow and at the same time remove
mechanical key
;
from the SmartKey.
For further information about:
R
Unlocking the driver's door (
Y
page 76)
R
Unlocking the cargo compartment
(
Y
page 82)
R
Locking the vehicle (
Y
page 77)
Inserting the mechanical key
X
Push mechanical key
;
completely into the
SmartKey until it engages and release
catch
:
is back in its basic position.
SmartKey battery
Important safety notes
G
WARNING
Batteries contain toxic and corrosive sub-
stances. 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.
The SmartKey batteries contain perchlorate
material, which may require special handling
and regard for the environment. National
guidelines must be observed during disposal.
In California, see www.dtsc.ca.gov/
HazardousWaste/Perchlorate/index.cfm.
Mercedes-Benz recommends that you have
the battery replaced at a qualified specialist
workshop.
Checking the battery
X
Press the
&
or
%
button.
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.
X
Change the battery (
Y
page 72).
i
If the SmartKey battery is checked within
the signal reception range of the vehicle,
pressing the
&
or
%
button:
R
locks or
R
unlocks the vehicle
i
You can get a battery at any qualified spe-
cialist workshop.
Replacing the battery
You require a CR 2025 3 V cell battery.
X
Take the mechanical key out of the Smart-
Key (
Y
page 71).
X
Press mechanical key
;
into the opening in
the SmartKey in the direction of the arrow
until battery tray cover
:
opens. When
doing so, do not hold cover
:
shut.
X
Remove battery tray cover
:
.
72
SmartKey
Opening
and
clo
sing