Page 203 of 425
202 Controls in detail
Power windows
Convenience closing feature
When locking the vehicle, you can close
the windows.Aim transmitter eye of the SmartKey at
the rear quarter window.
The SmartKey must be in close proxim-
ity to the rear quarter window.
Press and hold button ‹ until the
side windows are completely closed.
Release button ‹ to interrupt
procedure.
Warning!G
When closing the windows, make sure that
there is no danger of anyone being harmed
by the closing procedure.
If potential danger exists, release
button‹ to stop the closing procedure.
To open, press and hold button Œ. To
continue the closing after making sure that
there is no danger of anyone being harmed
by the closing procedure, press and hold
button‹.
Page 204 of 425

203 Controls in detail
Driving systems
Driving systems
The driving system of your vehicle is
described on the following pages:
Cruise control, with which the vehicle
can maintain a preset speed
For information on the BAS, ABS and ESP
®,
see “Driving safety systems” (
page 81).
Cruise control
Cruise control automatically maintains the
speed you set for your vehicle.
Use of cruise control is recommended for
driving at a constant speed for extended
periods of time. You can set or resume the
cruise control at any speed over 20 mph
(30 km/h).
The cruise control function is operated by
means of the cruise control lever.
The cruise control lever is the uppermost
lever on the left-hand side of the steering
column (
page 30).
Warning!G
The Cruise control is a convenience system
designed to assist the driver during vehicle
operation. The driver is and must always
remain responsible for the vehicle’s speed
and for safe brake operation.
Only use the cruise control if the road, traffic
and weather conditions make it advisable to
travel at a steady speed.
The use of the cruise control can be dan-
gerous on winding roads or in heavy traf-
fic because conditions do not allow safe
driving at a steady speed.
The use of the cruise control can be dan-
gerous on slippery roads. Rapid changes
in tire traction can result in wheel spin
and loss of control.
Deactivate the cruise control when
driving in fog.
The “Resume” function should only be oper-
ated if the driver is fully aware of the previ-
ously set speed and wishes to resume this
particular preset speed.
Page 206 of 425

205 Controls in detail
Driving systems
Setting a higher speed
Lift the cruise control lever to
position1 and hold it up until the de-
sired speed is reached.
Release the cruise control lever.
The new speed is set.
Setting a lower speed
Depress the cruise control lever to
position2 and hold it down until the
desired speed is reached.
Release the cruise control lever.
The new speed is set.Fine adjustment in 1 mph
(Canada: 1 km/h) increments
Faster
Briefly tip the cruise control lever in
direction of arrow1.
Slower
Briefly tip the cruise control lever in
direction of arrow2.Setting to last stored speed
(“Resume” function)
Briefly push the cruise control lever to
position4.
The cruise control resumes the last set
speed.
Remove your foot from the accelerator
pedal.
iDepressing the accelerator pedal does not
deactivate the cruise control. After brief acceler-
ation (e.g. for passing), the cruise control will
resume the last speed set.
iWhen you use the cruise control lever to de-
celerate, the transmission will automatically
downshift if the engine’s braking power does not
brake the vehicle sufficiently.
Warning!G
The speed stored in memory should only be
set again if prevailing road conditions per-
mit. Possible acceleration or deceleration
differences arising from returning to preset
speed could cause an accident and/or
serious injury to you and/or others.
Page 207 of 425
206 Controls in detail
Useful features
Map pocket in passenger footwellStorage compartments Armrest storage compartment
Reach into the recess and lift armrest.
The armrest opens automatically.
Warning!G
Do not place heavy or fragile objects, or ob-
jects having sharp edges in the map pocket.
In an accident, during hard braking or sud-
den maneuvers, they could be thrown
around inside the vehicle, and cause injury
to vehicle occupants.
Warning!G
To help avoid personal injury during a colli-
sion or sudden maneuver, exercise care
when storing objects in the vehicle. Put lug-
gage or cargo in the trunk. Do not pile lug-
gage or cargo higher than the seat backs.
Do not place anything on the shelf below the
rear window.
Parcel nets cannot secure hard or heavy
objects.
Keep compartment lids closed. This will help
to prevent stored objects from being thrown
about and injuring vehicle occupants during
an accident.
Page 209 of 425

208 Controls in detail
Useful features
Ashtray and cigarette lighter
The ashtray and the cigarette lighter are lo-
cated in the storage compartment under
the armrest.
1Cigarette lighter
2Ashtray insertAshtray
Removing ashtray insert
Pull ashtray insert2 upwards.
Replacing ashtray insert
Press the ashtray insert into the holder
until you hear it click into place.Cigarette lighter
Switch on the ignition (page 40).
Push in cigarette lighter 1.
The cigarette lighter pops out automat-
ically when hot.
Warning!G
Remove ashtray insert only with vehicle
standing still.
Warning!G
Never touch the heating element or sides of
the lighter; they are extremely hot. Hold the
knob only.
Make sure that any children traveling with
you do not injure themselves or start a fire
with the hot cigarette lighter.
When leaving the vehicle, always remove the
SmartKey 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.
Page 210 of 425

209 Controls in detail
Useful features
Power outlet
The power outlet is located on the left side
in the trunk.
1Power outlet
Switch on the ignition (page 40).
Flip up cover and insert electrical plug
(cigar lighter type).
Telephone
The telephone is located in the center
storage compartment (
page 207).
!The lighter socket can accommodate
12V DC electrical accessories (up to a maximum
of 85 W) designed for use with the standard
“cigarette lighter” plug type. Keep in mind, how-
ever, that connecting accessories to the lighter
socket (for example extensive connecting and
disconnecting, or using plugs that do not fit prop-
erly) can damage the lighter socket. With the
socket damaged, the lighter may no longer be
able to be placed in the heating (pushed-in) posi-
tion, or the lighter may pop out too early with the
lighter not hot enough.
To help avoid damaging the cigarette lighter
socket, we recommend connecting 12V DC elec-
trical accessories designed for use with a stan-
dard “cigarette lighter” plug type to the
12 V power outlets in your vehicle whenever
possible.
iThe power outlet can be used to accommo-
date 12V DC electrical accessories (e.g. air
pump, auxiliary lamps) up to a maximum
of 180 W or as a battery charging point
(
page 368).
Warning!G
Never operate radio transmitters equipped
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna)
from inside the vehicle while the engine is
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, pos-
sibly resulting in an accident and personal
injury.
Page 211 of 425

210 Controls in detail
Useful features
Radio transmitters, such as a portable tele-
phone or a citizens band unit, should only
be used inside the vehicle if they are con-
nected to an antenna that is installed on
the outside of the vehicle.
The external antenna must be approved by
Mercedes-Benz. Please contact an autho-
rized Mercedes-Benz Center for informa-
tion on the installation of an approved
external antenna. Refer to the radio trans-
mitter operation instructions regarding use
of an external antenna.You can take and place telephone calls
using the í and ì buttons on the
steering wheel. To carry out other tele-
phone functions, use the control system
(
page 141).
See separate instruction manual for
instructions on how to operate the
telephone.
Warning!G
Please do not forget that your primary re-
sponsibility is to drive the vehicle. A driver’s
attention to the road must always be
his/her primary focus when driving. For
your safety and the safety of others, we rec-
ommend that you pull over to a safe location
and stop before placing or taking a
telephone call.
If you choose to use the telephone
1 while
driving, please use the hands-free device
and only use the telephone when road,
weather and traffic conditions permit. Some
jurisdictions prohibit the driver from using a
mobile telephone while driving a vehicle.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet
(approximately 14 m) every second.
1Observe all legal requirements.
iFor additional information on operating the
telephone using the audio system head unit, see
“Telephone operation” (
page 162).
iStandard Mercedes-Benz mobile phone
design shown, SLR phone design may vary.
Page 216 of 425

215 Controls in detail
Useful features
System self-check
Initially, after switching on the ignition,
malfunctions are detected and indicated
(the indicator lamps in the SOS button, the
Roadside Assistance button• and the
Information button¡ stay on longer
than 10 seconds or do not come on). The
message
Tele Aid – inoperative
appears for approximately 10 seconds in
the multifunction display.Emergency calls
An emergency call is initiated
automatically following an accident in
which the emergency tensioning devices
(ETDs) or air bags have deployed.
An emergency call can also be initiated
manually by opening the cover next to the
inside rear view mirror labeled SOS, then
briefly pressing the button located under
the cover.
For more information, see “Initiating an
emergency call manually” (
page 217).
Warning!G
If the indicator lamps in the SOS button, in
the Roadside Assistance button, and/or in
the Information button do not come on dur-
ing the system self-check, or if any of these
indicators remain illuminated continuously
in red and/or the message
Tele Aid -
inoperative
is displayed in the multifunc-
tion display after the system self-check, a
malfunction in the system has been
detected.
If a malfunction is indicated as outlined
above, the system may not operate as ex-
pected. Have the system checked at the
nearest Mercedes-Benz Center as soon as
possible.