If you unlock the vehicle using the mechanical
key, the fuel filler flap will not be unlocked
automatically.
X
To unlock the fuel filler flap: insert the
SmartKey into the ignition lock.
Removing the mechanical key
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 90)
R
unlocking the trunk (
Y
page 96)
R
locking the vehicle (
Y
page 90)
Inserting the mechanical key
X
Push mechanical key
;
completely into
the SmartKey until it engages and release
catch
:
is back in its basic position.
Push mechanical key
;
completely into
the SmartKey until it engages and the
release catch is back in its basic position.
SmartKey battery
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.
Mercedes-Benz recommends that you have
the batteries replaced at a qualified specialist
workshop.
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/Hazard-
ousWaste/Perchlorate/index.cfm.
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 86).
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
SmartKey
85
Opening
and
closi
ng
Z
