Page 43 of 424
40 Central locking system
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Locking and unlocking with KEYLESS-GO-card
Unlocking:
Grasp either 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, centrally unlocks the
vehicle.
Global unlocking mode –
Grasp either door handle to unlock both doors, fuel filler
flap, and trunk.
For choosing global or selective mode on KEYLESS-GO-
card, see page 43.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 53.
The presently active unlocking mode (selective or
global) can be determined by pressing the button on the
KEYLESS-GO-card (see page 43 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.
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47 Central locking system
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Panic button
To activate press and hold button (1) for at least one
second. An audible alarm and blinking exterior lamps
will operate for approximately 2
1/2minutes.
To deactivate press button (1) again, or insert electronic
key in starter switch.Note:
For operation in the USA only: This device complies
with Part 15, Subpart C, Section 209 of the FCC Rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received,
including interference that may cause undesired
operation.
WARNING: Changes or modification not expressly
approved by party responsible for compliance could void
the user’s authority to operate the equipment.
Mechanical keys
The mechanical keys work only in driver’s door, trunk,
and storage compartment locks.
Notes:
The mechanical key does not operate the central locking
system or antitheft alarm system.
The fuel filler flap cannot be locked or unlocked with
the mechanical key.
If the fuel filler flap cannot be opened, see page 368.
P80.35-2035-26
1
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Page 52 of 424
49 Central locking system
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index If the vehicle has previously been locked from the
outside, opening a door from the inside will trigger the
alarm. When opening a door while the central locking
system is in the:
•selective unlocking mode, only that individual door
is unlocked. The remaining door, the trunk and fuel
filler f lap remain locked.
•global unlocking mode, both doors, the trunk and
fuel filler flap are unlocked.
Notes:
When opening a door, the door window and rear side
window lower slightly. After closing the door, the
windows close again.
In case of a malfunction in the central locking system
the doors can be locked and unlocked individually.
To lock, push down lock button or turn mechanical key
in driver’s door lock to position 3. In addition lock the
trunk.To unlock, pull inside door handles or turn mechanical
key in driver’s door lock to position 2.
When unlocking the driver’s door 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 main key.
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Page 54 of 424
51 Central locking system
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index 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 main 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.
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52 Central locking system
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Automatic central locking
With the automatic central locking system activated, the
doors and trunk are locked at vehicle speeds of approx.
9 mph (15 km/h) or more. The fuel filler flap remains
unlocked.
The automatic central locking function can be switched
on or off. See page 138 for “Individual settings”.
Notes:
If doors are unlocked with the central locking switch
after activating the automatic central locking, and
neither door is opened, then the doors remain unlocked
even at vehicle speeds of approx. 9 mph (15 km/h) or
more.
If a door is opened from the inside at speeds of approx.
9 mph (15 km/h) or less with the automatic central
locking activated, the door will again be automatically
locked at speeds of approx. 9 mph (15 km/h) or more.
Important!
When towing the vehicle, or with the vehicle on a
dynamometer test stand, please, note the following:With the automatic central locking activated and the
electronic key in starter switch position 2 (vehicles with
KEYLESS-GO: operation position, see page 224), the
vehicle doors will lock if the left front wheel as well as
the right rear wheel spin at vehicle speeds of approx.
9mph (15km/h) or more.
To prevent the vehicle door locks from locking,
deactivate the automatic central locking. See page 138
for “Individual settings”.
Emergency unlocking in case of accident
The doors unlock automatically a short time after an
accident in which an airbag or emergency tensioning
retractor deploys (this is intended to aid rescue and
exit).
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54 Central locking system
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
To cancel the alarm, insert the electronic key in the
starter switch or press buttonŒ or‹ on the
electronic main 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 368.Important!
Do not place mechanical key inside trunk, since trunk is
locked again when closing the lid if the vehicle has been
previously centrally locked.
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61 Central locking system
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Trunk lid emergency release
The emergency release button (1) is located in the trunk
lid.
Briefly press emergency release button (1).
All doors, the fuel filler flap, and the trunk unlock; and
the trunk lid opens.Note:
The emergency release button (1) only unlocks and
opens the trunk while the vehicle is standing.
Important!
The emergency trunk lid release button (1) does not
open the trunk lid, if:
•the vehicle battery is discharged or disconnected,
•the trunk lid was previously locked separately with
the mechanical key, see page 53.
Illumination of the emergency release button (1):
The button will blink for 30 minutes after opening the
trunk.
The button will blink for 60 minutes after closing the
trunk.
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115 Instrument cluster
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index 1Knob for instrument cluster illumination,
s e e p a g e 116
2Engine malfunction indicator lamp, see page 290
3Brake fluid low or parking brake engaged,
see page 301
4Supplemental restraint system (SRS) malfunction
indicator lamp, see page 293
5Coolant temperature gauge, see page 117
6Outside temperature indicator, see page 117
7Fuel gauge with reserve warning lamp, see page 293
8Left turn signal indicator lamp, see combination
switch on page 160
9Speedometer, see page 118
10Electronic stability program (ESP) warning lamp,
system is adjusting to road conditions, see page 295
11Distance warning lamp – vehicles with Distronic
(DTR), distance to the vehicle ahead is insufficient,
see page 264 and page 295.12Multifunction display, see page 120
Instrument cluster display, see page 297
13Trip odometer, see page 119 and 124
14Main odometer, see page 124
15Right turn signal indicator lamp, see combination
switch on page 160
16Tachometer, see page 119
17Gear range indicator display, see selector lever
positions on page 232
18Digital clock
To set the time, see COMAND operator’s manual
19Antilock brake system (ABS) malfunction indicator
lamp, see page 294
20High beam headlamp indicator,
see exterior lamp switch, page 156, and
combination switch, page 160
21Fasten seat belts, see page 296
22Reset buttonJ, s e e p a g e s 116 , 119
Activating the instrument cluster display
The instrument cluster is activated by:•Opening the door
1.
•Pressing button Jon the instrument cluster
1.
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