Page 153 of 491

152 Controls in detailInstrument clusterTachometer
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 instrument cluster (
page 24). For
information on how to select the unit of the
displayed temperature, i.e. degrees
Celsius (°C) or degrees Fahrenheit (°F),
see “Selecting temperature display mode”
(
page 165).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. This
means that the accuracy of the displayed
temperature can only be verified by com-
parison to a thermometer placed next to
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 tem-
perature 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 en-
gine damage that is not covered by the
Mercedes-Benz Limited Warranty.
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. The road may still be icy,
especially in wooded areas or on bridges.
Page 160 of 491

159 Controls in detail
Control system
Select satellite radio station*
The satellite radio is treated as a radio ap-
plication.
Select SAT radio with the correspond-
ing softkey in the radio menu.
1SAT mode and preset number
2Setting for station selection using
memory
3Channel name or number
Press buttonk orj repeatedly
until the desired channel is found.
Operate the CD player
Turn on the radio and select the CD
player. Refer to separate operating in-
structions.
Press buttonè orÿ repeatedly
until the settings for the CD currently
being played are shown in the display.1Current CD (for CD changer*)
2Current track
Press buttonk orj repeatedly
until the desired track is selected.
iYou can only store new stations using
the corresponding feature on the radio,
see separate operating instructions.
You can also operate the radio in the
usual manner.
iAdditional optional satellite radio
equipment and a subscription to satel-
lite radio service provider are required
for satellite radio operation. Contact an
authorized Mercedes-Benz Center for
details and availability for your vehicle.
For more information, refer to separate
COMAND operating instructions.
iTo select a CD from the magazine,
press a number on the COMAND
system key pad located in the center
console.
Page 162 of 491

161 Controls in detail
Control system
Distronic activated
When Distronic is activated,
Distronic
and the set speed are seen in the display.
1Distronic activated
Vehicle status message memory menu
Use the vehicle status message memory
menu to scan malfunction and warning
messages that may be stored in the sys-
tem. Such messages appear in the multi-
function display and are based on
conditions or system status the vehicle’s
system has recorded.
Press buttonè orÿ repeatedly
until the vehicle status message mem-
ory appears in the multifunction dis-
play.
No vehicle status messages
If no malfunctions have occurred, the mes-
sage in the display is:
NO MESSAGESVehicle status messages have been
recorded
If conditions have occurred causing status
messages to be recorded, the number of
messages appears in the multifunction dis-
play:
Warning!
G
Malfunction and warning messages are only
indicated for certain systems and are inten-
tionally not very detailed. The malfunction
and warning messages are simply a remind-
er with respect to the operation of certain
systems and do not replace the owner’s
and / or driver’s responsibility to maintain
the vehicle’s operating safety by having all
required maintenance and safety checks
performed on the vehicle and by bringing
the vehicle to an authorized Mercedes-Benz
Center to address the malfunction and
warning messages (
page 362).
Page 188 of 491

187 Controls in detail
Automatic transmission
Gear selector lever position
Effect
ì
Park position
Gear selector lever position
when the vehicle is parked. Place
gear selector lever in positionP
only when vehicle is stopped.
The park position is not intended
to serve as a brake when the
vehicle is parked. Rather, the
driver should always set the
parking brake in addition to
placing the gear selector lever in
positionP to secure the vehicle.
EffectThe SmartKey can only be
removed from the starter switch
with the gear selector lever in
positionP. With the SmartKey
removed, the gear selector lever
is locked in positionP.
If the vehicle’s electrical system
is malfunctioning, the gear
selector lever could remain
locked in positionP
(page 405).
í
Reverse gear
Place gear selector lever in
positionR only when vehicle is
stopped.
Effect
ë
Neutral
No power is transmitted from the
engine to the drive axle. When
the brakes are released, the
vehicle can be moved freely
(pushed or towed).
To avoid damage to the trans-
mission, never engageN while
driving.
If the ESP is deactivated or
malfunctioning:
Move gear selector lever toN
only if the vehicle is in danger of
skidding, e.g. on icy roads.
ê
Drive
The transmission shifts
automatically. All forward gears
are available.
Page 192 of 491

191 Controls in detail
Good visibility
Good visibility
For information on windshield wipers, see
“Windshield wipers” (
page 52).
Headlamp cleaning system*
The button is located on the left side of the
dashboard.
1Headlamp washer button
Switch on the ignition (
page 34).
Press button1.
The headlamps are cleaned with a
high-pressure water jet.For more information on filling up the
washer reservoir, see “Windshield washer
system and headlamp cleaning system*”
(
page 306).
Rear view mirror
For more information on setting the rear
view mirrors, see “Mirrors” (
page 41).
Auto-dimming mirror
The reflection brightness of the exterior
rear view mirror on the driver’s side and
the interior rear view mirror will respond
automatically to glare when
the ignition is switched on, and
incoming light from headlamps falls on
the sensor in the interior rear view mir-
ror
The rear view mirror will not react if
reverse gear is engaged
the interior lighting is turned on
Warning!
G
The auto-dimming function does not react if
incoming light is not aimed directly at sen-
sors in the interior rear view mirror.
The interior rear view mirror does not react,
for example, if the rear window sunshade is
in raised position.
Glare can endanger you and others.Warning!
G
In the case of an accident liquid electrolyte
may escape from the mirror housing if the
mirror glass breaks.
Electrolyte has an irritating effect. Do not al-
low the liquid to come into contact with
eyes, skin, clothing, or respiratory system.
In case it does, immediately flush affected
area with water, and seek medical help if
necessary.
Page 196 of 491

195 Controls in detail
Good visibility
Rear window defroster
The rear window defroster uses a large
amount of power. To keep the battery
drain to a minimum, switch off the defrost-
er as soon as the rear window is clear. The
defroster is automatically deactivated af-
ter approximately 6 to 17 minutes of oper-
ation depending on the outside
temperature.
Activating
Press buttonF (
page 198) or
(
page 210) or1(
page 199)
or (
page 211) on the respective
climate control panel.
The indicator lamp on the button
comes on.Deactivating
Press buttonF or1 again.
The indicator lamp on the button goes
out.Warning!
G
Any accumulation of snow and ice should be
removed from the rear window before driv-
ing. Visibility could otherwise be impaired,
endangering you and others.
!If the rear window defroster switches
off too soon and the indicator lamp
starts flashing, this means that too
many electrical consumers are operat-
ing simultaneously and there is insuffi-
cient voltage in the battery. The system
responds automatically by deactivating
the rear window defroster.
As soon as the battery has sufficient
voltage, the rear window defroster
automatically turns itself back on.
Page 205 of 491

204 Controls in detailDual-zone automatic climate controlAir recirculation mode
Switch to air recirculation mode to prevent
unpleasant odors from entering the vehicle
from the outside. This setting cuts off the
intake of outside air and recirculates the
air in the passenger compartment.Activating
Press buttonO (
page 198) or
(
page 199).
The indicator lamp on the button
comes on.
Warning!
G
When the outside temperature is below
41°F (5°C), only switch to air recirculation
mode for short periods to prevent window
fogging.
Window fogging may impair visibility and
endanger you and others.
iIf you keep buttonO pressed, the
side windows and tilt/sliding sunroof*
or tilt/sliding panel* will close.
Warning!
G
Never operate the windows and tilt/sliding
sunroof* if there is the possibility of anyone
being harmed by the opening or closing pro-
cedure.
In case the procedure causes potential dan-
ger:
The closing of the side windows can be im-
mediately halted by pressing or pulling the
respective window switch. The closing of the
tilt/sliding sunroof can be immediately halt-
ed by moving the switch for the tilt/sliding
sunroof in any direction.
The closing of the side windows and the
tilt/sliding sunroof can be reversed by again
pressing and holding theO button.
Page 218 of 491

217 Controls in detail
4-zone automatic climate control*
Deactivating
Press buttonO(
page 210) or
(
page 211).
The indicator lamp on the button goes
out.The air recirculation mode is deactivated
automatically:
after five minutes if the outside temper-
ature is below approximately 41°F
(5°C)
after five minutes if the air conditioning
is turned off
after 30 minutes if the outside temper-
ature is above approximately 41°F
(5°C)
At outside temperatures above 79°F
(26°C) the system will not automatically
switch back to outside air. A quantity of
outside air is added after approximately
30 minutes.
Warning!
G
Never operate the side windows and
tilt/sliding sunroof* if there is the possibility
of anyone being harmed by the opening or
closing procedure.
In case the procedure causes potential dan-
ger:
The closing of the side windows can be im-
mediately halted by pressing or pulling the
respective window switch. The closing of the
tilt/sliding sunroof can be immediately halt-
ed by moving the switch for the tilt/sliding
sunroof in any direction.
The closing of the side windows and the
tilt/sliding sunroof can be reversed by again
pressing and holding theO button.
iThe air recirculation mode is activated
automatically:
at high outside temperatures
if the concentration of carbon mon-
oxide and nitrogen oxide in the out-
side air increases, for example in a
tunnel)
If you have turned off the air condition-
ing (page 210) or (
page 211) or
the outside temperature is below 41°F
(5°C), the air recirculation mode will
not switch on automatically.
iIf you keep buttonO pressed, the
side windows and the tilt/sliding sun-
roof* will return to their previous posi-
tion.