Page 81 of 376

81 Controls in detail
Locking and unlocking
Factory setting
Global unlocking
Press button
Œ
.
All turn signals blink once. The locking
knobs in the doors move up.
The vehicle will lock again automatically
within approximately 40 seconds of un-
locking if neither door nor trunk is opened.
Global locking
Press button
‹
.
All turn signals blink three times. The lock-
ing knobs in the doors move down.Individual setting
If you frequently travel alone, you may wish
to reprogram the key so that
pressing
Œ
only unlocks the driver’s
door, interior lockable storage compart-
ments and the fuel filler flap.
Press and hold buttons
Œ
and
‹
simultaneously for about six seconds
until the battery check lamp5 blinks
twice.
The key will then function as follows:
Unlocking driver’s door
Press button
Œ
once.
Global unlocking
Press button
Œ
twice.
Global locking
Press button
‹
.Restoring to factory setting
Press and hold buttons
Œ
and
‹
simultaneously for about six seconds
until the battery check lamp5 blinks
twice.
!To prevent possible malfunction, avoid
exposing the key to high levels of elec-
tromagnetic radiation.
Warning!
G
When leaving the vehicle, always remove the
key from the starter switch, take the KEY-
LESS-GO
* card (if so equipped) with you
and lock the vehicle. Do not leave children
unattended in the vehicle, or with access to
an unlocked vehicle. It is possible for chil-
dren to open a locked door from the inside,
which could result in an accident or serious
injury.
Page 82 of 376

82 Controls in detailLocking and unlocking
Checking the batteries
Press button
‹
or
Œ
.
The battery check lamp5 lights up
briefly to indicate that the key batteries
are in order.Unlocking the trunk lid
You can unlock the trunk separately.
Press and hold button
Š
until trunk
unlocks.
!If you can no longer lock or unlock the
vehicle with the key, then either the
batteries in the electronics are dis-
charged or the key is malfunctioning.
Check the batteries in the key
(page 82) and replace them if
necessary (
page 293).
or
Use the mechanical key to unlock
the doors (
page 290) and trunk
(
page 291) as required. Lock the
vehicle using the mechanical key
(page 292).
If the key is malfunctioning, contact an
authorized Mercedes-Benz Center.
!If the battery check lamp5 does not
light up briefly during check then the
key batteries are discharged.
Change the batteries (
page 293).
You can obtain the required batteries
at any authorized Mercedes-Benz Cen-
ter.
iIf the vehicle was previously centrally
locked, the trunk lid will lock automati-
cally when closed. The turn signals will
flash three times to confirm locking.
Page 88 of 376

88 Controls in detailLocking and unlockingUnlocking the trunk lid
The handle is located in the rear license
plate recess.
Pull on the handle and lift up the trunk
lid.
The vehicle unlocks the trunk lid only.Locking the vehicle
1Trunk lock button
Press the lock button at door
(page 49) or trunk.Closing the side windows
Press and hold lock button at door
(page 49) until the side windows are
closed.
iIf the vehicle was previously centrally
locked, the trunk lid will lock automati-
cally when closed. The turn signals will
flash three times to confirm locking.
To prevent a possible inadvertent lock-
out, the trunk lid will open automatical-
ly if a KEYLESS-GO card is recognized
inside the trunk.
Warning!
G
When closing the windows, be sure that
there is no danger of anyone being harmed
by the closing procedure.
If potential danger exists, proceed as fol-
lows:
Release the lock button.
Pull on the door handle and hold firmly.
The side windows will open for as long
as the door handle is held but the door
is not opened.
Page 102 of 376
102 Controls in detailLighting
LightingFor notes on how to switch on the head-
lamps and use the turn signals, see the
“Getting started” section (
page 43).
Exterior lamp switch
The exterior lamp switch is located on the
dashboard to the left of the steering wheel.M
Off
U
Automatic headlamp mode
C
Parking lamps, license plate lamps
and instrument panel lamps
B
Low beam or high beam headlamps
ˆ
Standing lamps, right
‚
Standing lamps, left
iIf you remove the key and open the
driver’s door while the parking lamps or
low beam headlamps are switched on,
then
a warning sounds
$
appears in the speedometer
display field
the message
Turn lamps off
ap-
pears in the tachometer display
field
iWith the daytime running lamp mode
activated and the engine running, the
low beam headlamps cannot be
switched off manually.
To activate the daytime running lamp
mode, see “Setting daytime running
lamp mode (USA only)” (
page 124).
Page 105 of 376
105 Controls in detail
Lighting
High beam flasher
Pull the combination switch briefly in
direction2.
Hazard warning flasher
The hazard warning flasher can be activat-
ed with the ignition switched on or off. It is
activated automatically when an airbag is
deployed.
The switch is located above and between
the center air vents.
1Hazard warning flasher switchSwitching on the hazard warning
flasher
Press the hazard warning flasher
switch.
All the turn signals will blink.
Switching off the hazard warning
flasher
Press hazard warning flasher switch
again.iWith the hazard warning flasher acti-
vated and the combination switch set
for either left or right turn, only the re-
spective left or right turn signals will
operate.
Page 178 of 376

178 Controls in detailDriving systemsDeactivating Distronic
There are several ways to deactivate the
Distronic system:
Briefly tip the cruise control lever in the
direction of arrow3 (
page 175).
or
Step on the brake pedal.
Distronic will be deactivated. The last
speed set will be stored into memory.Distronic deactivates automatically when
you set the parking brake
you drive slower than 25 mph
(Canada: 40 km/h)
ESP is active (
page 70) or you deac-
tivate ESP
You move the transmission selector le-
ver into positionN.
A signal will sound. The
DTR off
mes-
sage appears in the speedometer dis-
play for approximately five seconds.Setting the following distance in
Distronic
You can set the specified following for Dis-
tronic by varying the time setting between
1.0 and 2.0 seconds. Using this time set-
ting and the current speed of your vehicle,
Distronic calculates and sets the required
following distance to the vehicle ahead.
The set distance will be shown in the
speedometer display field.
The thumbwheel for making the time set-
ting is located on the lower section of the
center console.
iThe last stored speed is deleted when
you turn off the engine.
Warning!
G
Distronic switches off and releases the
brakes when the vehicle decelerates below
the minimum speed of 25 mph ( 40 km / h)
by operation of the system. At that time the
driver must apply the brakes in order to re-
duce vehicle speed further or bring it to a
stop.
Warning!
G
It is up to the driver to exercise discretion to
select the appropriate setting given road
conditions, traffic, driver’s preferred driving
style and applicable laws and driving recom-
mendations for safe following distance.
Page 201 of 376

201 Controls in detail
Useful features
The Tele Aid system
(Tele
matic A
larm I
dentification on D
e-
mand)
The Tele Aid system consists of three
types of response:
automatic and manual emergency
roadside assistance and
information.
The Tele Aid system is operational provid-
ing that the vehicle’s battery is charged,
properly connected, not damaged and cel-
lular and GPS coverage is available.
The speaker volume of a Tele Aid call can
be adjusted when using the volume control
on the multifunction steering wheel. To
raise, press button
æ
and to lower,
press button
ç
.
To activate, press the SOS button, the
Roadside Assistance button
•
or
the Information button
¡
, depend-
ing on the type of response required.Shortly after the completion of your Ac-
quaintance Call, you will receive a user ID
and password via first call mail. By visiting
www.mbusa.com and selecting “Tele Aid”
(USA only), you will have access to account
information, remote door unlock, and
more.System self-check
Initially, after turning the key in the starter
switch to position 2, malfunctions are de-
tected and indicated (the indicator lamps
in the SOS button, the Roadside Assis-
tance button
•
and the Information
button
¡
stay on longer than
10 seconds or do not come on). The mes-
sage
Tele Aid – Visit workshop!
ap-
pears for approx. 10 seconds in the
multifunction display.
iThe SOS button is located above the in-
side rear view mirror.
The Roadside Assistance button
•
and the Information button
¡
are
located below the center armrest cov-
er.
!The Tele Aid system utilizes the cellular
network for communication and the
GPS (Global Positioning System) satel-
lites for vehicle location. If either of
these signals are unavailable, the Tele
Aid system may not function and if this
occurs, assistance must be summoned
by other means.
Page 205 of 376

205 Controls in detail
Useful features
These programs are only available in the
USA:
Sign and Drive services: Services such
as jump start, a few gallons of fuel or
the replacement of a flat tire with the
vehicle spare tire are obtainable,
Remote Vehicle Diagnostics: This func-
tion permits the Mercedes-Benz Road-
side Assistance dispatcher to
download malfunction codes and actu-
al vehicle data.Information button
¡
Located below the center armrest cover is
the Information button
¡
.
Press and hold the button (for longer
than 2 seconds).
A call to the Customer Assistance Cen-
ter will be initiated. The button will
flash while the call is in progress. The
message
Info – Connecting call
will
appear in the multifunction display.
When the connection is established, the
message
Info – Call connected
appears
in the multifunction display. The Tele Aid
system will transmit data generating the
vehicle identification number, model, color
and location (subject to availability of cel-
lular and GPS signals).
A voice connection between the Customer
Assistance Center representative and the
occupants of the vehicle will be estab-
lished. When a voice connection is estab-
lished the audio system mutes and the
message
Tele Aid – Info call active
appears in the multifunction display.
iThe indicator lamp in the Roadside As-
sistance button
•
remains illumi-
nated in red for approx. 10 seconds
during the system self-check after turn-
ing the key in the starter switch to
position2 (together with the SOS but-
ton and the Information button
¡
).
See system self-check (
page 201)
when the indicator lamp does not light
up in red or stays on longer than ap-
proximately 10 seconds.
If the indicator lamp in the Roadside
Assistance button
•
is illuminated
continuously and there was no voice
connection to the Response Center es-
tablished, then the Tele Aid system
could not initiate a Roadside Assis-
tance call (e.g. the relevant cellular
phone network is not available). The
message
Roadside assistance –
Call failed
appears in the multifunc-
tion display.
Roadside Assistance calls can be ter-
minated using the
ì
button on the
multifunction steering wheel.