107 Controls in detail
Locking and unlocking
Selective setting
If you frequently travel alone, you may wish
to reprogram the SmartKey so that press-
ing buttonŒ only unlocks the driver’s
door, interior lockable storage compart-
ments and the fuel filler flap.
Press and hold buttonsŒand‹
simultaneously for about 5 seconds
until battery check lamp5 flashes
twice.
The SmartKey will then function as
follows:Unlocking driver’s door and fuel filler
flap
Press button Œ once.
All turn signal lamps flash once.
An acoustic warning sounds once.
The locking knob in the driver’s
door moves up.
The anti-theft alarm system is
disarmed.
Global unlocking
Press button Œ twice.
All turn signal lamps flash once.
An acoustic warning sounds once.
The locking knobs in the doors
move up.
The anti-theft alarm system is
disarmed.Global locking
Press button ‹.
With all doors and the trunk closed:
All turn signal lamps flash three
times.
An acoustic warning sounds three
times.
The locking knobs in the doors
move down.
The anti-theft alarm system is
armed.
Restoring to factory setting
Press and hold buttons Œ and ‹
simultaneously for about 5 seconds
until battery check lamp5
(
page 104) flashes twice.
108 Controls in detail
Locking and unlocking
SmartKey with KEYLESS-GO*
Vehicles equipped with KEYLESS-GO come
with two SmartKeys with KEYLESS-GO,
each with remote controls and a remov-
able mechanical key.
The function of the SmartKey overrules the
KEYLESS-GO function.
The KEYLESS-GO function is integrated
into the SmartKey. On these vehicles, the
validity of the SmartKey with KEYLESS-GO
is checked every time you grasp a door
handle.
If the SmartKey with KEYLESS-GO is valid,
your vehicle unlocks
the doors
the trunk lid
the glove box
the storage compartment under the
armrest
the storage compartments in the rear
the fuel filler flap
SmartKey with KEYLESS-GO
1‹Lock button
2Š Opening button for trunk
(
page 114)
3Mechanical key locking tab
4ŒUnlock button
5Battery check lamp
6Â Panic button (
page 88)
For information on using the SmartKey
buttons, see “SmartKey” (
page 104).
Warning!G
When leaving the vehicle, always take the
SmartKey with KEYLESS-GO with you and
lock the vehicle. Do not leave children
unattended in the vehicle, or with access to
an unlocked vehicle. A child’s unsupervised
access to a vehicle could result in an
accident and/or serious personal injury.
!To prevent possible malfunction, avoid
exposing the SmartKey with KEYLESS-GO to
high levels of electromagnetic radiation.
iUSA only:
This device complies with Part 15 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.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
112 Controls in detail
Locking and unlocking
Selective setting
If you frequently travel alone, you may wish
to reprogram the SmartKey with
KEYLESS-GO so that grasping an outside
door handle only unlocks the driver’s door,
interior lockable storage compartments
and the fuel filler flap.
Press and hold buttons Œ and ‹
simultaneously for about 5 seconds
until battery check lamp5
(
page 108) flashes twice.
The SmartKey with KEYLESS-GO will
then function as follows:Unlocking the driver’s door and fuel fill-
er flap
Grasp the driver’s door handle.
All turn signal lamps flash once.
An acoustic warning sounds once.
The locking knob in the driver’s
door moves up.
The anti-theft alarm system is
disarmed.
Global unlocking
Grasp the door handle on the passen-
ger side.
All turn signal lamps flash once.
An acoustic warning sounds once.
The locking knobs in the doors
move up.
The anti-theft alarm system is
disarmed.Global locking
Press lock button on an outside door
handle.
With all doors and the trunk closed:
All turn signal lamps flash three
times.
An acoustic warning sounds three
times.
The locking knobs in the doors
move down.
The anti-theft alarm system is
armed.
Restoring to factory setting
Press and hold buttons Œ and ‹
simultaneously for about 5 seconds
until battery check lamp5
(
page 108) flashes twice.
iVehicles with trunk opening/closing
system*: You can also lock the vehicle using
the KEYLESS-GO locking/closing switch
(
page 119).
122 Controls in detail
Locking and unlocking
Power closing assist for trunk lid
Press the trunk lid gently into its lock.
The trunk closes automatically.
Automatic central locking
The doors and the trunk lid lock automati-
cally when the vehicle is set into motion.
You can deactivate the automatic locking
using the control system (
page 166).
Locking and unlocking from the inside
You can lock or unlock the vehicle from
inside using the central locking switches.
This can be useful, for example, if you want
to unlock the passenger door from the
inside or want to lock the vehicle before
starting to drive.
The central locking switches do not lock or
unlock the fuel filler flap or the interior
storage compartments, such as the glove
box.
Warning!G
Make sure the trunk is closed when the
engine is running and while driving.
Among other dangers, deadly carbon
monoxide (CO) gases may enter vehicle
interior resulting in unconsciousness and
death.
iYou can open a locked door from the inside.
Open door only when conditions are safe to do
so.
iThe doors unlock automatically after an
accident if the force of the impact exceeds a
preset threshold.
The vehicle locks automatically when the
ignition is switched on and the wheels are
turning at vehicle speeds of approximately
9 mph (15 km/h) or more. You could therefore
lock yourself out when the vehicle
is pushed
is on a test stand
Warning!G
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children
unattended in the vehicle, or with access to
an unlocked vehicle. A child’s unsupervised
access to a vehicle could result in an
accident and/or serious personal injury.
142 Controls in detail
Instrument cluster
Tachometer
The red marking on the tachometer de-
notes excessive engine speed.
To help protect the engine, the fuel supply
is interrupted if the engine is operated
within the red marking.Outside temperature indicator
The outside temperature is displayed in
the left or right multifunction display
(
page 160).The temperature sensor is located in the
front bumper area. Due to its location, the
sensor can be affected by road or engine
heat during idling or slow driving. There-
fore, the accuracy of the displayed temper-
ature can only be verified by comparison to
a thermometer placed next the sensor, not
by comparison to external displays, e.g.
bank signs, etc.
When moving the vehicle into colder ambi-
ent temperatures (e.g. when leaving your
garage), you will notice a delay before the
lower temperature is displayed.
A delay also occurs when ambient temper-
atures rise. This prevents inaccurate
temperature indications caused by heat
radiated from the engine during idling or
slow driving.
!Avoid driving at excessive engine speeds, as
it may result in serious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.
Warning!G
The outside temperature indicator is not
designed to serve as an ice-warning device
and is therefore unsuitable for that purpose.
Indicated temperatures just above the
freezing point do not guarantee that the
road surface is free of ice. The road may still
be icy, especially in wooded areas or on
bridges.
148 Controls in detail
Control system
Menu 6Menu 7Menu 8Menu 9
Vehicle status
message memory1SettingsTrip computerTelephone*
(page 156)(page 157)(page 167)(page 169)
Commands/submenus
Calling up vehicle
malfunction, warning
and system status
messages stored in
memoryResetting to factory
settingsFuel consumption
statistics since startLoading phone book
Instrument cluster
submenuFuel consumption
statistics since last re-
setSearching for name in
phone book
Time submenuResetting fuel consump-
tion statistics
Lighting submenuDistance to empty
Vehicle submenu
Convenience submenu
1The vehicle status message memory menu is only displayed if there is a message stored.
iThe headings used in the menus table are
designed to facilitate navigation within the system and are not necessarily identical to
those shown in the control system displays.
The first function displayed in each menu willautomatically show you which part of the system
you are in.
167 Controls in detail
Control system
Move the selection marker with
theæ orç button to the
Convenience
submenu.
Press button j or k repeatedly
until the message
Easy-entry
Function
appears in the multifunction
display.
The selection marker is on the current
setting.
Press button æ or ç to switch
the easy-entry/exit feature
On or Off.
Trip computer menu
Use the trip computer menu to call up
statistical data on your vehicle.
The following information is available:
Warning!G
You must make sure no one can become
trapped or injured by the moving steering
wheel when the easy-entry/exit feature is
activated.
To stop steering wheel movement, do one of
the following:
Move steering wheel adjustment stalk
(
page 47).
Press one of the memory position
buttons* or the memory button M*
(
page 129).
Do not leave children unattended in the ve-
hicle, or with access to an unlocked vehicle.
Children could open the driver’s door and
unintentionally activate the easy-entry/exit
feature, which could result in an accident
and/or serious personal injury.
FunctionPage
Fuel consumption statistics
since start168
Fuel consumption statistics
since last reset168
Resetting fuel consumption
statistics168
Distance to empty169
iThe last function called up will reappear the
next time you enter the trip computer menu.
168 Controls in detail
Control system
Fuel consumption statistics since start
Press button ÿ or è repeatedly
until you see the first function of the
trip computer menu.
Press button j or k repeatedly
until you see this message in the left
multifunction display:
From Start.
1Distance driven since start
2Average speed since start
3Time elapsed since start
4Average fuel consumption since startFuel consumption since last reset
Press button ÿ or è repeatedly
until you see the first function of the
trip computer menu.
Press button j or k repeatedly
until you see this message in the left
multifunction display:
From Reset.
1Distance driven since last reset
2Average speed since last reset
3Time elapsed since last reset
4Average fuel consumption since last
resetResetting fuel consumption statistics
Press button ÿ or è repeatedly
until you see the first function of the
trip computer menu.
Press button j or k repeatedly
until you see the reading that you want
to reset in the left multifunction dis-
play.
Press and hold the reset button in the
instrument cluster (
page 27) until
the value is reset to
0.
iAll statistics stored since the last engine
start will be reset approximately 4 hours after
the SmartKey in the starter switch is turned to
position0 or removed from the starter switch.
Resetting will not occur if you turn the SmartKey
back to position1 or2 within this time period.
iThe fuel consumption statistics reset
automatically to
0 when either of the following
values is exceeded:
distance covered: 100 000 miles
time elapsed: 10 000 hours