Page 41 of 430

38 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Locking and unlocking with KEYLESS-GO-card
Unlocking:
Grasp any door handle. All turn signal lamps blink once
to indicate that the vehicle is unlocked.
The KEYLESS-GO-card can be programmed for two
kinds of unlocking modes (see below):
Selective unlocking mode –
Grasp driver’s door handle to unlock driver’s door and
fuel filler flap.
Grasping the passenger door or a rear door, centrally
unlocks the vehicle.
Global unlocking mode –
Grasp any door handle to unlock both doors, fuel filler
flap, and trunk.
For choosing global or selective mode on KEYLESS-GO-
card, see page 41.Notes:
The door which was unlocked, can be opened
immediately after the audible click. The other door can
be opened after its lock button rises up.
If the trunk was previously locked separately, it will
remain locked, see page 51.
The presently active unlocking mode (selective or
global) can be determined by pressing the button on the
KEYLESS-GO-card (see page 41 for changing mode).
If within 40 seconds of unlocking with the
KEYLESS-GO-card, neither door nor trunk is opened,
the electronic key is not inserted in the starter switch,
or the central locking switch is not activated, the vehicle
will automatically lock.
Page 42 of 430
39 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Locking:
Press lock button (1) at any door. All turn signal lamps
blink three times to indicate that the vehicle is locked. If
they do not blink three times, a door or trunk is not
properly closed, or the KEYLESS-GO-card is still in the
vehicle. Check the multifunction display, see page 328.Note:
Locking the vehicle with the door lock button (1) is only
possible if a KEYLESS-GO-card is outside the vehicle.
P80.00-2040-26
1
Page 43 of 430
40 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Unlocking:
Press trunk lid lock (2) to open trunk only.
Locking:
Press the trunk lid lock button (3). All turn signal lamps
blink three times to indicate that the vehicle is locked. If
they do not blink three times, a door or trunk is not
properly closed or a KEYLESS-GO-card is still in the
vehicle. Check the multifunction display, see page 328.Notes:
If the trunk was previously locked separately, it will
remain locked, see page 51.
The vehicle cannot be centrally unlocked via the trunk
lid lock (2).
To prevent a possible inadvertent lockout, the trunk lid
will open automatically if a KEYLESS-GO-card is
recognized in the area of the rear shelf or inside the
trunk.
P54.25-2457-26
Page 44 of 430
41 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Choosing global or selective mode
on KEYLESS-GO-card
To choose between the selective or global opening mode
press and hold button (1) until the indicator lamp at the
requested symbol (2) or (3) comes on.Checking last KEYLESS-GO-card locking mode
Briefly press button (1). The indicator lamp (2) or (3)
lights up in red (vehicle locked) or in green (vehicle
unlocked).
P80.30-2027-26
1
2
3
Page 45 of 430

42 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Simultaneous use of electronic key and
KEYLESS-GO-card
When using the electronic key and the KEYLESS-GO-
card at the same time, the electronic key overrules the
KEYLESS-GO-card.
If the engine is started with the start- / stop button on
the gear selector lever, and afterwards the electronic
key is inserted in the starter switch, the engine
continues to run with the gear selector lever in positions
“R”, “N”, “D” plus ranges “4”, “3”, “2”, “1” until it is
stopped by using the start- / stop button on the gear
selector lever.If the electronic key is inserted in the starter switch
while the gear selector lever is in position “P”, the
electronic key takes over. The vehicle operates
according to the electronic key position in the starter
switch (see page 230), eventually even stopping the
engine.
Wa r n i n g !
When leaving the vehicle always remove the
electronic key from the starter switch, take the
KEYLESS-GO-card with you, and lock your vehicle.
Unsupervised use of vehicle equipment may cause
serious personal injury.
Page 52 of 430

49 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Important!
When the driver’s door is open and the central locking
switch activated, the complete vehicle is locked after
closing driver’s door.
If the vehicle was previously locked with the central
locking switch, while in the selective remote control
mode, only the door opened from the inside is unlocked.
If the vehicle was previously locked with the central
locking switch, while in the global remote control mode,
the complete vehicle is unlocked when a door is opened
from the inside.
Notes:
If the vehicle was previously locked with the remote
control or the lock button at any door handle (vehicles
with KEYLESS-GO), the doors and trunk cannot be
unlocked with the central locking switch.
The fuel filler flap cannot be locked or unlocked with
the central locking switch.If the vehicle has previously been locked from the
outside, opening a door from the inside will trigger the
alarm. To cancel the alarm, insert the electronic key in
the starter switch or press buttonŒ or‹ on the
electronic key; or (vehicles with KEYLESS-GO) when
carrying the KEYLESS-GO-card, grasp the door handle
or press the start- / stop button on the gear selector lever.
Wa r n i n g !
When leaving the vehicle always remove the
electronic key from the starter switch, take the
KEYLESS-GO-card (if so equipped) with you, and
lock your vehicle. Do not leave children unattended
in the vehicle, or with access to an unlocked
vehicle. Unsupervised use of vehicle equipment
may cause serious personal injury.
Page 54 of 430

51 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Trunk
0Neutral position – push to open (arrow)
1Unlocking
2Separate locking of trunk – remove mechanical key
in this position.
The lock is located in the license plate recess.When the trunk is separately locked, it remains locked
when centrally unlocking the vehicle.
To deny any unauthorized person access to the trunk,
lock it separately with the mechanical key. Leave only
the electronic key less its mechanical key with the
vehicle.
Notes:
In case of a malfunction in the central locking system
the trunk can be unlocked individually.
To unlock and open the trunk lid, turn mechanical key
to position 1, hold and push to open.
The mechanical key does not operate the central locking
system or antitheft alarm system.
When unlocking the trunk with the mechanical key, the
exterior lamps will flash and the alarm will sound.
To cancel the alarm, insert the electronic key in the
starter switch or press buttonŒ or‹ on the
electronic key or (vehicles with KEYLESS-GO) when
carrying the KEYLESS-GO-card, grasp the door handle
or press the start-/stop button on the gear selector lever.
If the fuel filler flap cannot be opened, see page 376.
P54.25-2404-26
0
2
Page 57 of 430
54 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
In case of a malfunction the trunk lid can be opened and
closed manually.
To open, unlock trunk lid with the mechanical key and
open lid by hand, see page 51.
To close, lower trunk lid with hands placed flat on trunk
lid. Please remember to keep your fingers out of the
space between the lid and the vehicle.
Vehicles with KEYLESS-GO:
To prevent a possible inadvertent lockout, the trunk lid
will open automatically if a KEYLESS-GO-card is
recognized in the area of the rear shelf or inside the
trunk.Trunk lamp
The trunk lamp will switch off after approximately
10 minutes if the trunk lid is left open.