Page 146 of 400

146 Controls in detailAutomatic transmission*
Program mode selector switch
The program mode selector switch is
located on the lower part of the center
console.
1Program mode selector switch
S Sport For standard driving
C Comfort For comfort driving
!Coasting the vehicle, or driving for any
other reason with gear selector lever
inN can result in transmission damage
that is not covered by the
Mercedes-Benz Limited Warranty.Warning!
G
Getting out of your vehicle with the gear
selector lever not fully engaged in positionP
is dangerous. Also, positionP alone is not
intended to or capable of preventing your
vehicle from moving, possibly hitting people
or objects.
Always set the parking brake in addition to
shifting to positionP (
page 50).
When parked on an incline, turn the front
wheels towards the road curb.
Do not park this vehicle in areas where
combustible materials such as grass, hay or
leaves can come into contact with the hot
exhaust system, as these materials could be
ignited and cause a vehicle fire.
Warning!
G
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. Children
could move the gear selector lever from
positionP, which could result in an accident
and/or serious personal injury.
!Never change the program mode when
the gear selector lever is out of
positionP. This could result in a
change of driving characteristics for
which you may not be prepared.
Page 152 of 400

152 Controls in detailGood visibilityRear window sunshade*
The switch is located in the center console.
Turn the SmartKey to starter switch
position1 or2.
Press upper switch position1 briefly
to raise the sunshade.
Press lower switch position2 briefly
to lower the sunshade.
Always raise the sunshade fully for its sup-
port against the window frame.
Warning!
G
When operating the rear window sunshade,
make sure there is no danger of anyone be-
ing harmed by the raising or lowering proce-
dure.
The raising or lowering procedure can be im-
mediately halted by briefly pressing the up-
per or lower half of the switch.
Briefly press upper or lower half of the
switch again to raise or lower the rear win-
dow sunshade completely.
Warning!
G
When leaving the vehicle, always remove the
SmartKey from starter switch, and lock your
vehicle. Do not leave children unattended in
the vehicle, or with access to an unlocked
vehicle. Unsupervised use of vehicle equip-
ment can cause an accident and/or serious
personal injury.
Page 171 of 400
171 Controls in detail
Automatic climate control*
Residual heat and ventilation
With the engine switched off, it is possible
to continue to heat or ventilate the interior
for up to 30 minutes. This feature makes
use of the residual heat produced by the
engine.
Activating
Turn the SmartKey in the starter switch
to position1 or0, or remove it from
the starter switch.
Press button° (
page 163).
The indicator lamp on the button
comes on.Deactivating
Press button° (
page 163).
The indicator lamp on the button goes
out.
The residual heat is automatically turned
off:
when the ignition is switched on
after about 30 minutes
if the battery voltage drops
iHow long the system will provide
heating depends on the coolant
temperature and the temperature set
by the operator. The blower will run at
speed setting1 regardless of the air
distribution control setting.
Page 175 of 400
175 Controls in detail
Audio system
Item
Page
1
CD mode selector
189
2
Manual tuning
(radio)
179
Fast forward/reverse
(cassette, CD)
188,
192
Speed dialing memory
(telephone*)
197
3
Radio mode selector
179
4
Display panelCassette compartment
behind display panel
Item
Page
5
Alpha-numeric keypadBand selection,
station buttons (radio)
179
CD selection (CD)
191
Telephone number entry,
retrieving speed dialing
memory (telephone)
194
6
Scanning (radio, cassette,
CD)
181,
188,
192
7
Function button
180
8
Light-emitting diode
Item
Page
9
Function keys
a
Cassette eject
187
b
Cassette mode selector
186
c
Telephone* mode selector
193
d
Seek tuning (radio)
180
Track search (cassette,
CD)
187,
192
Speed dialing memory
(telephone)
197
e
On/off
176
Volume
176
Page 176 of 400

176 Controls in detailAudio systemButton and soft key operation
In these instructions, the alpha-numeric
keypad (right side of radio panel) and the
function buttons (left side of radio panel)
are referred to as “buttons”. The four keys
below the display panel are referred to as
“soft keys”.
Operation
Switching on/off
Switching on:
Turn SmartKey in starter switch to
position1 or2 .
or
Turn control knoba.
Switching off:
Remove SmartKey from starter switch.
or
Turn control knoba.Adjusting the volume
Turn control knoba.
The volume will increase or decrease
depending on the direction turned.
Adjusting audio functions
Press the AUD key to call up the bass, tre-
ble, balance and fader functions in the var-
ious operating modes. Settings for bass
and treble are stored separately for the AM
and FM frequency bands, satellite radio
(SAT) mode, cassette mode and CD mode.
!Do not press directly on the display
face. Otherwise, the display will be
damaged.
iIf the radio is switched on without the
SmartKey in the starter switch, it will
automatically switch off again after ap-
prox. 30 minutes.
iThe volume setting can be selected
separately for the telephone*, audio
system and voice control system*.
Page 177 of 400
177 Controls in detail
Audio system
Bass
Regardless of operating mode, press
the
AUD
key repeatedly until
BASS
appears on the display.
Press
+ or
- key to increase or de-
crease level.
or
Press both
+ and
- keys simultaneously
to reset the Bass to its center (flat) lev-
el.Treble
Regardless of operating mode, press
the
AUD
key repeatedly until
TREBLE
appears on the display.
Press
+ or
- key to increase or
decrease level.
or
Press both
+ and
- keys simultaneously
to reset the Treble to its center (flat)
level.Fader
Regardless of operating mode, press
the
AUD
key repeatedly until
FADER
appears on the display.
Press
F or
R key to shift sound accord-
ingly to the front or rear speakers.
or
Press both
F and
R keys simultaneously
to reset the Fader to its center level.
iYour vehicle may or may not have the
fader function, depending on the
vehicle equipment and model.
Page 178 of 400
178 Controls in detailAudio systemBalance
Regardless of operating mode, press
the
AUD
key repeatedly until
BALANCE
appears on the display.
Press
L or
R key to shift sound accord-
ingly to the left or right speakers.
or
Press both
L and
R keys simultaneously
to reset the Balance to its center level.Returning audio functions to factory
settings
Regardless of operating mode, press
and hold
AUD
key longer than two
seconds.
RESET
will appear on the
display.
All settings for bass, treble and balance
are returned to the center level and the
volume is set to a predefined level.Audio system sound selection (EXT)*
Regardless of operating mode, press
the
AUD
key.
The sound settings menu appears on
the display.
Press the
EXT
key.
Press one of the function keys.
Page 179 of 400

179 Controls in detail
Audio system
You can select from among the
following settings:
DRV
: The tone level is set to the
Driver position; sound is directed
toward the passengers.
SP: The tone level is set for Speech,
optimizing the sound for the spoken
word.
AMB
: The tone level is set for
Ambience, producing a
three-dimensional sound.
OFF
: The audio system sound
selection is turned off.
Telephone* muting
If a telephone has been installed in the
vehicle, the radio will switch to telephone
mode when a call is incoming. The current
audio source is muted.
Radio operation
Selecting radio mode
Pressb button.
You can now receive radio stations
over the analog FM, AM or WB station
frequencies or you can receive chan-
nels digitally via satellite radio (SAT)*.
Analog station frequencies
Selecting the band
You can select from among FM, AM or WB
frequency bands.
Weather band (
page 182).
Press FM, AM or WB key repeatedly un-
til desired band has been selected.
The FM, AM and WB frequency bands
are called up one after the other.
The frequency band currently selected
appears in the upper left-hand corner
of the display.
Selecting a station
The following options are available for
selecting a station:
Direct frequency band input
(page 180)
Manual tuning (
page 180)
Automatic seek tuning (
page 180)
Scan tuning (
page 181)
Preset buttons (
page 181)
Automatic station memory (Autostore)
(page 181)
iFM frequency band:
FM 87.7......107.9 MHz
AM frequency band:
MW (medium wave) 530......1 710 KHz