Mechanical Key - Mercedes-Benz C-CLASS CABRIOLET Operator's Manual

Changing the settings of the locking
system
You can change the settings of the locking sys-
tem. This means that only the driver's door and
the fuel filler flap are unlocked when the vehicle
is unlocked. This is useful if you frequently travel
alone.
To change the setting: press and hold down
X
the % and & buttons simultaneously
for approximately six seconds until the bat-
tery check lamp ( page 78) flashes twice.
Y
If the setting of the locking system is changed
within the signal range of the vehicle, pressing
the & or % button:
locks or
R
unlocks the vehicle
R
The SmartKey now functions as follows:
To unlock: press the % button once.
X
To unlock centrally: press the % button
X
twice.
To lock: press the & button.
X
To restore the factory settings: press and
X
hold the % and & buttons simultane-
ously for approximately six seconds until the
battery check lamp (
twice.
The KEYLESS-GO functions can be changed as
follows:
To unlock the driver's door: touch the inner
X
surface of the door handle on the driver's
door.
To unlock centrally: touch the inner surface
X
of the front-passenger door handle.
To lock centrally: touch the outer sensor
X
surface on one of the door handles.

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 sys-
tem will be triggered. Switch off the alarm
( page 73).
Y
page 78) flashes
Y
If you unlock the vehicle using the mechanical
key, the fuel filler flap will not be unlocked auto-
matically.
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 the
X
arrow and at the same time remove mechan-
ical key ; from the SmartKey.
Further information on locking/unlocking the
driver's door ( page 82).
Y
Inserting the mechanical key
Push mechanical key ; completely into the
X
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 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.
H
Environmental note
Batteries contain dangerous
substances. It is against the
law to dispose of them with
SmartKey
77
Z