249 Controls in detail
Power windows
Opening
Push the retractable hardtop switch in
quick succession twice in direction of
arrow1.
All side windows open.Closing
Push the retractable hardtop switch in
quick succession twice in direction of
arrow2.
Keep the retractable hardtop switch
pushed the second time until all win-
dows are closed.
The windows in the driver’s and pas-
senger door will close first, followed by
the rear side windows.Opening and closing the windows with
the SmartKey*
The retractable hardtop (
page 252) will
also be opened or closed when the power
windows are operated with the SmartKey.
Aim transmitter eye at the outside
driver’s or passenger door handle.
The SmartKey must be in close proxim-
ity to the respective outside door han-
dle.
iYou can operate the rear side windows
only by using the retractable hardtop
switch.
iIf the retractable hardtop is open, only
the windows in the driver’s and passen-
ger door will close. The rear side win-
dows remain open.
257 Controls in detail
Retractable hardtop
Opening and closing the retractable
hardtop with the SmartKey*
The power windows (
page 246) will also
be opened or closed when you operate the
retractable hardtop with the SmartKey.
Aim transmitter eye at the outside
driver’s or passenger door handle.
The SmartKey must be in close proxim-
ity to the respective outside door han-
dle.Opening (Summer opening feature)
Press and hold unlock buttonŒ un-
til the retractable hardtop is complete-
ly open.
The retractable hardtop and windows
begin to open after approximately
1 second. In the multifunction display
you will see the message
Retractable
roof in operation
.
Release buttonŒ on the SmartKey
to interrupt procedure.
Warning!
G
Before operating the retractable hardtop,
make sure no persons can be injured by the
moving parts (retractable roof, roof frame,
and trunk lid) due to negligence.
Hands must never be placed near the roof
frame, upper windshield area, hardtop, shelf
behind roll bars, or trunk lid while the re-
tractable hardtop is being raised or lowered.
Serious personal injury may occur.
If potential danger exists, release the re-
spective button on the SmartKey. This im-
mediately interrupts the raising or lowering
procedure. You can then operateŒ
or‹to raise or lower the hardtop away
from the danger zone.
260 Controls in detailDriving systemsThe driving system of your vehicle is
described on the following pages:
Cruise control, with which the vehicle
can maintain a preset speed.
The BAS, ABS and ESP
® driving systems
are described in the “Safety and Security”
section (
page 82).
Cruise control
The 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 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 22).
Warning!
G
The cruise control is a convenience system
designed to assist the driver during vehicle
operation. The driver is and must remain at
all times responsible for the vehicle 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 cruise control can be danger-
ous on winding roads or in heavy traffic
because conditions do not allow safe
driving at a steady speed.
The use of cruise control can be danger-
ous on slippery roads. Rapid changes in
tire traction can result in wheel spin and
loss of control.
Deactivate the cruise control when driv-
ing 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.
261 Controls in detail
Driving systems
1Set current or higher speed
2Set current or lower speed
3Cancel cruise control
4Resume to last set speedSetting current speed
Accelerate or decelerate to the desired
speed.
Briefly lift1 or depress2 the cruise
control lever (
page 261).
The current speed is set.
Remove your foot from the accelerator
pedal.
The cruise control is activated.
The selected speed appears in the multi-
function display.
Warning!
G
Cruise control brakes automatically so that
the set speed is not exceeded. The brake
pedal is depressed automatically to do this.
Keep in mind that cruise control is a conve-
nience system designed to assist the driver
during vehicle operation. The driver is and
must always remain responsible for the ve-
hicle’s speed and for safe braking operation.
Keep driver’s foot area clear at all times, in-
cluding the area under the brake pedal. Ob-
jects stored in this area may impair pedal
movement which could interfere with the
braking ability of the cruise control system.
Do not place your foot under the brake pedal
- your foot could become caught.
263 Controls in detail
Driving systems
Setting a higher speed
Lift the cruise control lever in direction
of arrow1 (
page 261) and hold it
up until the desired speed is reached.
Release the cruise control lever.
The new speed is set.
Setting a lower speed
Depress the cruise control lever in
direction of arrow2 (
page 261) and
hold it down until the desired speed is
reached.
Release the cruise control lever.
The new speed is set.
iThe cruise control switches off auto-
matically, if
you step on the brake pedal.
you pull up the parking brake lever
firmly.
the vehicle speed is below 20 mph
(30 km/h).
ESP
® is in operation or switched off
with the ESP
® switch (
page 84).
Vehicles with manual transmission:
you depress the clutch pedal for
longer than 6 seconds during shift-
ing into another gear.
Vehicles with automatic transmis-
sion*: you move the gear selector
lever to positionN while driving.
!Vehicles with automatic transmission*:
Moving gear selector lever to
positionN while driving also cancels
cruise control. However, the gear se-
lector lever should not be moved to
positionN while driving except to coast
when the vehicle is in danger of skid-
ding (e.g. on icy roads).iDepressing the accelerator pedal does
not deactivate the cruise control. After
brief acceleration (e.g. for passing), the
cruise control will resume the last
speed set.
iWhen you use the cruise control lever
to decelerate, the brake system will
automatically brake the vehicle if the
engine’s braking power does not brake
the vehicle sufficiently.
268 Controls in detailUseful featuresShelf behind roll bars
Cup holder
1Cover plate
Press briefly on cover plate1 to open
the cup holder.
The cup holder opens automatically.
Press cover plate1 until the cup hold-
er engages to close it.
Warning!
G
The shelf behind the roll bars should not be
used to carry objects. This will prevent such
objects from being thrown around and injur-
ing vehicle occupants during an accident or
sudden maneuver.
The trunk is the preferred place to carry ob-
jects.
Warning!
G
In order to help prevent spilling liquids on
vehicle occupants and/or vehicle equip-
ment, only use containers that fit into the
cup holder. Use lids on open containers and
do not fill containers to a height where the
contents, especially hot liquids, could spill
during braking, vehicle maneuvers, or in an
accident. Liquids spilled on vehicle occu-
pants may cause serious personal injury.
Liquids spilled on vehicle equipment may
cause damage not covered by the
Mercedes-Benz Limited Warranty.
When not in use, keep the cup holder
closed. An open cup holder may cause injury
to you or others when contacted during
braking, vehicle maneuvers, or in an acci-
dent.
Keep in mind that objects placed in the cup
holder may come loose during hard braking,
vehicle maneuvers, or in an accident and be
thrown around in the vehicle interior. Ob-
jects thrown around in the vehicle interior
may cause an accident and/or serious per-
sonal injury.
273 Controls in detail
Useful features
You can take and place telephone calls us-
ing the buttonssandt on the mul-
tifunction steering wheel. Use the control
system for performing other telephone
functions (
page 151).
See separate operating manual for instruc-
tions on how to use the telephone.
Tele Aid
Shortly after the completion of your Tele
Aid acquaintance call, you will receive a
user ID and password. By visiting
www.mbusa.com and selecting “Tele Aid”
(USA only), you will have access to account
information, remote door unlock and
more.The Tele Aid system
(Telematic Alarm Identification on
Demand)
The Tele Aid system consists of three
types of response:
Automatic and manual emergency
Roadside Assistance
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 buttonæ and to lower,
press buttonç or use the volume knob
on your audio system or COMAND* head
unit.
Only operate the COMAND (Cockpit Man-
agement and Data System)* or audio sys-
tem if road, weather, and traffic conditions
permit.
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.
!The initial activation of the Tele Aid sys-
tem may only be performed by com-
pleting the subscriber agreement and
placing an acquaintance call using the
¡button. Failure to complete either
of these steps will result in a system
that is not activated.
If you have any questions regarding ac-
tivation, please call the Response
Center at 1-800-756-9018 (in the USA)
or 1-888-923-8367 (in Canada).
274 Controls in detailUseful features
To activate, press the SOS button, the
Roadside Assistance button• or
the Information button¡, depend-
ing on the type of response required.System self-check
Initially, after switching on ignition, mal-
functions 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
Malfunction. Drive to
workshop appears for approximately
10 seconds in the multifunction display.
iThe SOS button is located in the over-
head control panel.
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 sum-
moned by other means.
iWhen a Tele Aid call has been initiated,
the audio system or COMAND* system
audio is muted and the selected mode
(radio, tape or CD) pauses. The optional
cellular phone* (if installed) and insert-
ed in cradle switches off. If you must
use this phone, we recommend that
you use it only with the vehicle at a
standstill in a safe location. Remove
the phone from the cradle and place
the call. The COMAND* navigation sys-
tem (if engaged) will continue to run.
The display in the instrument cluster is
available for use, and spoken com-
mands are only available by pressing
the RPT button on the COMAND* unit.
A pop-up window will appear in the
COMAND* display to indicate that a
Tele Aid call is in progress. After the
Tele Aid call has ended, the optional
cellular phone switches on again. A PIN
entry might be necessary.