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 80)
R
unlocking the trunk (Y page 82)
R
locking the vehicle (Y page 80)
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 75).
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 74).
SmartKey
75
Opening and closing
Z
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