Important Safety Notes - Mercedes-Benz C-Class Operator's Manual

ignition lock. The SmartKey must be in the
vehicle.
or
Lock or unlock the vehicle using KEYLESS-
X
GO. The SmartKey must be outside the
vehicle.
If you unlock the vehicle using the mechanical
key, the fuel filler flap will not be unlocked
automatically.
To unlock the fuel filler flap: insert the
X
SmartKey into the ignition lock.
Removing the mechanical key
Push release catch : in the direction of
X
the arrow and at the same time remove
mechanical key ; from the SmartKey.
SmartKey battery

Important safety notes

Mercedes-Benz recommends that you have
the batteries replaced at a qualified specialist
workshop.
G WARNING
Batteries contain toxic substances.
Swallowing batteries can lead to serious
health issues or death.
Keep batteries out of the reach of children.
Seek medical attention immediately if a
battery is swallowed.
G
WARNING
The SmartKey batteries contain perchlorate
material, which may require special handling
and regard for the environment. Observe
government disposal guidelines. California
residents, see www.dtsc.ca.gov/
HazardousWaste/Perchlorate/
index.cfm.
Checking the battery
Press the & or % button.
X
The battery is working properly if battery
check lamp : lights up briefly.
If battery check lamp : does not light up
briefly during the test, the battery is
discharged.
i
If the SmartKey battery is checked within
the signal reception range of the vehicle,
pressing the & or % button:
locks or
R
unlocks the vehicle
R
Change the battery (
X
i
You can get a battery at a qualified
specialist workshop.
Replacing the battery
You require a CR 2025 3 V cell battery.
Take the mechanical key out of the
X
SmartKey ( page 76).
Y
I n f o r ma t i o n P r o v i d e d b y :
SmartKey
77
page 77).
Y
Z