Mercedes-Benz C-Class Operator's Manual page 92

SmartKey
90
To unlock the vehicle: touch the inner
X
surface of the door handle.
To lock the vehicle: touch sensor sur-
X
face : or ;.
Make sure that you do not touch the inner
surface of the door handle.
Convenience closing feature: touch
X
recessed sensor surface ; for an exten-
ded period.
To unlock the trunk lid: pull the handle on
X
the trunk lid.
Deactivating and activating
If you do not intend to use a SmartKey for an
extended period of time, you can deactivate
the KEYLESS-GO function of the SmartKey.
The SmartKey will then use very little power,
thereby conserving battery power. For the
purposes of activation/deactivation, the
vehicle must not be nearby.
To deactivate: press the & button on
X
the SmartKey twice in rapid succession.
The battery check lamp of the SmartKey
( page 91) flashes twice briefly and
Y
lights up once, then KEYLESS-GO is deac-
tivated.
To activate: press any button on the
X
SmartKey.
or
Insert the SmartKey into the ignition lock.
X
KEYLESS-GO and all of its associated fea-
tures are available again.
KEYLESS-GO start function
Bear in mind that the engine can be started by
any of the vehicle occupants if there is a
SmartKey in the vehicle.
Changing the settings of the locking
system
You can find information about this in the
Digital Operator's Manual.
Mechanical key
General notes
If the vehicle can no longer be locked or
unlocked with the SmartKey or KEYLESS-GO,
use the mechanical key.
If you use the mechanical key to unlock and
open the driver's door, the anti-theft alarm
system will be triggered. Switch off the alarm
( page 85).
Y
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.