Mercedes-Benz C-Sedan 2015 Owners Manual - Manual (Page 91)

X Turn the mechanical key back and remove
it.
X
Insert the mechanical key into the Smart-
Key.
X Hold the cover over the lock of the driver's
door with the thicker end towards the front
of the vehicle and press to secure. Then
make sure that the slit of the cover is hor-
izontal.
Vehicles without KEYLESS-GO:
X Insert the mechanical key into opening :
in the protective cap.
X
Pull and hold the door handle.
X Pull the protective cap on the mechanical
key as straight as possible away from the
vehicle until it releases.
X
Release the door handle.
X
Insert the mechanical key into the lock of
the driver's door as far as it will go.
X Turn the mechanical key counter-clockwise
as far as it will go to position 1.
The locking knob pops up and the door
unlocks.
X Turn the mechanical key back and remove
it.
X
Insert the mechanical key into the Smart-
Key (
Y
page 83).
X Carefully press the protective cap onto the
lock cylinder until it engages and is seated
firmly. Do not pull the door handle when
doing so.
All vehicles:
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
(
Y
page 76).
Locking the vehicle (mechanical key)
If the vehicle can no longer be locked with the
SmartKey or KEYLESS-GO, use the mechani-
cal key.
X
Open the driver's door.
X
Close the front-passenger door, the rear
doors and the trunk lid.
X Press the locking button (
Y
page 87).
X Check whether the locking knobs on the
front-passenger door and the rear doors
are still visible. Press down the locking
knobs by hand, if necessary.
X Close the driver's door.
X
Take the mechanical key out of the Smart-
Key (
Y
page 83).
Vehicles with KEYLESS-GO:
X
Insert the tip of the mechanical key into the
slit on the cover of the driver's door lock
and turn it until the cover is released.
Doors
89
Opening
and
closing
Z