197 Controls in detail
Power windows
Opening the door windows
Press switch1 or2 to the resistance
point.
The corresponding door window will
move downwards until you release the
switch.
Opening the rear side windows when
the hardtop is closed:
Open the door window.
Press switch1 or 2 to the resistance
point again.
The corresponding rear side window
will open completely.Closing the door windows
Pull switch1 or2 to the resistance
point.
The corresponding door window will
move upwards until you release the
switch.
Closing the rear side windows if the
hardtop is closed:
Close the door window.
Pull and hold switch1 or 2.
The corresponding rear side window
will move upwards until you release the
switch. Fully opening the door windows
(Express-open)
Press switch1 or2 past the resis-
tance point and release.
The corresponding door window opens
completely.
i
If the hardtop is open, the respective rear
side window will also open automatically.
Warning!
G
If you pull and hold the switch up when clos-
ing the door window, and upward movement
of the door window is blocked by some ob-
struction including but not limited to arms,
hands, fingers, etc., the automatic reversal
will not operate.
i
If the hardtop is open, the respective rear
side window will also open automatically.
198 Controls in detailPower windowsFully closing the door windows
(Express-close)
Pull switch1 or2 past the resis-
tance point and release.
The corresponding door window closes
completely.
If the upward movement of the door win-
dow is blocked during the closing proce-
dure, the door window will stop and open
slightly.
Stopping windows
Press or pull the respective switch
again.Closing the windows with
KEYLESS-GO*
Press and hold lock button on an out-
side door handle (
page 64) until the
windows are closed.
Synchronizing power windows
The power window must be synchronized
each time
after the battery has been disconnect-
ed
if the power windows cannot be fully
opened (Express-open) or closed
(Express-close)
Synchronizing the power windows
Switch on the ignition (
page 39).
Pull the power window switches until
the side windows are closed.
Hold the switches for approximately
1 second.
The power windows are synchronized.
Warning!
G
Driver’s door only:
If within 5 seconds the switch is again
pulled past the resistance point and re-
leased, the automatic reversal will not
operate.
Warning!
G
When closing the windows make sure that
there is no danger of anyone being harmed
by the closing procedure.
The windows will not automatically re-open
if blocked during convenience closing.
If potential danger exists, proceed as fol-
lows:
Release the lock button.
Pull on the door handle and hold firmly.
The side windows open for as long as
the door handle is held but the door not
opened.
202 Controls in detailRetractable hardtop
Engage the parking brake (
page 54).
Close the luggage cover, see “Luggage
cover” (
page 205).
Close the trunk lid.
Opening (Summer opening feature)
Aim the transmitter eye at an outside
door handle.
The SmartKey must be in close proxim-
ity to the outside door handle.
Press and hold button Œ until the
retractable hardtop is completely
open.
The seat ventilation* for the driver’s
seat switches on. The rear side win-
dows open.
Release button Œ to interrupt pro-
cedure.
Closing (Convenience feature)
Aim the transmitter eye at the outside
door handle.
The SmartKey must be in close proxim-
ity to the outside door handle.
Press and hold button ‹until the
retractable hardtop is completely
closed.
The retractable hardtop and the rear
side windows close.Locking the retractable hardtop after
raising/lowering
If the retractable hardtop is not properly
locked, lock it as follows.
i
Make sure the retractable hardtop is dry be-
fore you open it. Otherwise water may enter the
trunk interior.
Warning!
G
The hardtop is not fully closed and locked or
not fully opened and locked if:
the message K
in operation
appears in the multifunction display
a warning sounds for 10 seconds and
the message K
Lock
retractable roof appears in the mul-
tifunction display when starting to drive
238 Controls in detailUseful features
Pull strap1 out of holder2.
Secure the luggage with the strap so
that it cannot move.
Insert strap1 into latch3.
Releasing strap
Press release button4 and guide
strap1 back to holder2.
Cup holders
1Left cup holder
2Right cup holder
Opening
Briefly press cup holder cover.
The cup holder opens automatically.
Warning!
G
The shelf below the rear window should not
be used to carry objects. This will avoid such
objects from being thrown about 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 or others when contacted during braking,
vehicle maneuvers, or in an accident.
Keep in mind that objects placed in the cup
holder may come lose during braking, vehi-
cle 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.
249 Controls in detail
Useful features
Call priority
If other service calls such as a Roadside
Assistance call or Information call are ac-
tive, an Emergency call is still possible. In
this case, the Emergency call will take pri-
ority and override all other active calls.
!
If the indicator lamps do not start flashing
after pressing one of the buttons or remain illu-
minated (in red) at any time, the Tele Aid system
has detected a malfunction or the service is cur-
rently not active, and may not initiate a call. Visit
an authorized Mercedes-Benz Center and have
the system checked or contact the Response
Center at 1-800-756-9018 (in the USA) or
1-888-923-8367 (in Canada) as soon as possi-
ble.
i
The indicator lamp in the respective button
flashes until the call is concluded. Calls can only
be terminated by a Response Center or Custom-
er Assistance Center representative except
Roadside Assistance and Information calls,
which can also be terminated by pressing button
t on the multifunction steering wheel or the
respective button for ending a telephone call on
the COMAND headunit.
!
If the indicator lamp continues to flash or
the system does not reset, contact the Response
Center at 1-800-756-9018 (in the USA) or
1-888-923-8367 (in Canada), or Mercedes-Benz
Customer Assistance at 1-800-FOR-MERCedes
(1-800-367-6372) in the USA or Customer Ser-
vice at 1-800-387-0100 in Canada.
i
When a Tele Aid call has been initiated, the
COMAND system audio is muted and the select-
ed mode (radio or CD) pauses. The optional cel-
lular phone (if installed) switches off. If you must
use this phone, the vehicle must be parked. Dis-
connect the coiled cord and place the call. The
COMAND navigation system (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.
267 Operation
Driving instructions
Road salts and chemicals can adversely af-
fect braking efficiency. Increased pedal
force may become necessary to produce
the normal brake effect.
Depressing the brake pedal periodically
when traveling at length on salt-strewn
roads can bring road-salt-impaired braking
efficiency back to normal.
If the vehicle is parked after being driven
on salt-treated roads, the braking efficien-
cy should be tested as soon as possible af-
ter driving is resumed.
For more information, see “Winter driving”
(
page 316).
Standing water
Warning!
G
Make sure not to endanger any other road
users when carrying out these braking ma-
neuvers.
Warning!
G
If the vehicle becomes stuck in snow, make
sure that snow is kept clear of the exhaust
pipe and from around the vehicle with the
engine running. Otherwise, deadly carbon
monoxide (CO) gases may enter vehicle in-
terior resulting in unconsciousness and
death.
To assure sufficient fresh air ventilation,
open a window slightly on the side of the ve-
hicle not facing the wind.Warning!
G
The outside temperature indicator is not de-
signed to serve as an Ice-Warning Device
and is therefore unsuitable for that purpose.
Indicated temperatures just above the freez-
ing point do not guarantee that the road sur-
face is free of ice.
!
Do not drive through flooded areas or water
of unknown depth. Before driving through water,
determine its depth. Never accelerate before
driving into water. The bow wave could force wa-
ter into the engine and auxiliary equipment, thus
damaging them.
If you must drive through standing water, drive
slowly to prevent water from entering the pas-
senger compartment or the engine compart-
ment. Water in these areas could cause damage
to electrical components or wiring of the engine
or transmission, or could result in water being in-
gested by the engine through the air intake,
causing severe internal engine damage. Any
such damage is not covered by the
Mercedes-Benz Limited Warranty.
312 OperationTires and wheelsTire and loading terminology
Accessory weight
The combined weight (in excess of those
standard items which may be replaced) of
automatic transmission, power steering,
power brakes, power windows, power
seats, radio, and heater, to the extent that
these items are available as
factory-installed equipment (whether
installed or not).
Air pressure
The amount of air inside the tire pressing
outward on each square inch of the tire.
Air pressure is expressed in pounds per
square inch (psi), or kilopascal (kPa) or
bars.
Aspect ratio
Dimensional relationship between tire
section height and section width
expressed in percentage.Bar
Another metric unit for air pressure. There
are 14.5038 pounds per square inch (psi)
to 1 bar; there are 100 kilopascals (kPa)
to 1 bar.
Bead
The tire bead contains steel wires wrapped
by steel cords that hold the tire onto the
rim.
Cold tire inflation pressure
Tire inflation pressure when your vehicle
has been sitting for at least 3 hours or driv-
en no more than 1 mile (1.6 km).
Curb weight
The weight of a motor vehicle with stan-
dard equipment including the maximum
capacity of fuel, oil, and coolant, and, if so
equipped, air conditioning and additional
optional equipment, but without passen-
gers and cargo.DOT (D
epartment o
f T
ransportation)
A tire branding symbol which denotes the
tire meets requirements of the
U.S. Department of Transportation.
GAWR (G
ross A
xle W
eight R
ating)
The GAWR is the maximum permissible
axle weight. The gross vehicle weight on
each axle must never exceed the GAWR for
the front and rear axle indicated on the
certification label located on the driver’s
door B-pillar.
GVW (G
ross V
ehicle W
eight)
The GVW comprises the weight of the
vehicle including fuel, tools, spare wheel,
installed accessories, passengers and
cargo and, if applicable, trailer tongue
load. The GVW must never exceed the
GVWR indicated on the certification label
located on the driver’s door B-pillar.
316 OperationWinter drivingBefore the onset of winter, have your vehi-
cle winterized at an authorized
Mercedes-Benz Center. This service in-
cludes:
Check of anticorrosion and antifreeze
concentration.
Addition of cleaning concentrate to the
water of the windshield and headlamp
cleaning system. Add MB Concentrate
“S” to a pre-mixed windshield washer
solvent/antifreeze which is formulated
for temperatures below freezing point
(page 451).
Battery test. Battery capacity drops
with decreasing ambient temperature.
A well charged battery helps to ensure
that the engine can be started and the
electro-hydraulic brake system will be
fully operational even at low ambient
temperatures.
Tire change.
Winter tires
Always use winter tires at temperatures
below 45°F (7°C) and whenever wintry
road conditions prevail. Not all M+S rated
tires provide special winter performance.
Make sure the tires you use show M+S and
the mountain/snowflake sym-
bol.marking on the tire sidewall.
These tires meet specific snow traction
performance requirements of the Rubber
Manufacturers Association (RMA) and the
Rubber Association of Canada (RAC) and
have been designed specifically for use in
snow conditions. Use of winter tires is the
only way to achieve the maximum effec-
tiveness of the ABS and ESP
® in winter op-
eration.
For safe handling, make sure all winter
tires mounted are of the same make and
have the same tread design.
!
When scraping ice or snow from the rear
window, be careful not to damage the sealing
strip or apertures along the side of the window.