Page 157 of 464

157 Controls in detail
Automatic transmission*
!
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 49).
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. 
     
        
        Page 175 of 464

175 Controls in detail
Climate control
Switching climate control on/off
Switching on
Turn air volume control2 out of 
position0.
Switching off
Turn air volume control2 to 
position0.
Setting the temperature
Use temperature controls1 and4 to 
separately adjust the air temperature on 
each side of the passenger compartment. 
You should raise or lower the temperature 
setting in small increments, preferably 
starting at 72°F (22°C).
Increasing
Turn temperature control1 or4 
slightly clockwise.
The climate control system will corre-
spondingly adjust the interior air tem-
perature.
Decreasing
Turn temperature control1 or4 
slightly counterclockwise.
The climate control system will corre-
spondingly adjust the interior air tem-
perature.
Item
1
Temperature control, left side
2
Air volume control, climate control 
on/off
3
Air distribution control
4
Temperature control, right side
5
FRear window defroster
6
PDefrosting
7
°Air condition on/off,
Residual engine heat utilization
8
,Air recirculation
!With the climate control system 
switched off, the air flow and the air cir-
culation are deactivated.
Only choose this setting temporarily to 
prevent the windows from fogging up. 
     
        
        Page 179 of 464

179 Controls in detail
Climate control
Activating
Moist air can fog up the windows. You can 
dehumidify the air with the air condition-
ing.
Press air condition on/off switch° 
again (
page 175).
The indicator lamp on the air condition 
on/off switch° goes out.Maximum cooling
Turn thumbwheels4 and7 upwards 
to the first stop (
page 173).
The fixed center air vents3 and8 
and the adjustable air vents5 and6 
are open.
For draft-free ventilation, move the 
sliders for the center air vents5 
and6 to the middle position 
(page 173).
Turn thumbwheels1 anda for the 
adjustable side air2 and9 vents to 
the fully open position (
page 172).
Set air distribution control3 to 
positiona (
page 176).
The air distribution directs the air 
through the center and side air vents.
Set air volume control2 to position5 
(page 176).
The ventilation operates with maximum 
blower speed.
Turn temperature controls1 and4 
completely counterclockwise to their 
end stops (
page 175).
The lowest temperature for both sides 
is set.
!If the indicator lamp on the air condi-
tion on/off switch° comes on 
while driving and you cannot switch on 
the air conditioning again by pressing 
the air condition on/off switch°, 
the air conditioning is losing refriger-
ant.
Have the air conditioning checked at 
the nearest authorized Mercedes-Benz 
Center.
 
     
        
        Page 223 of 464

223 Controls in detail
Audio system
TDMA or CDMA network phonesUsing your Mercedes-Benz specified 
mobile telephone*, a number of functions 
and operating steps can be performed and 
displayed in the audio system display.
Further operating instructions not covered 
here can be found in the operating instruc-
tions for the multifunction steering wheel 
and the mobile telephone*.
If your audio system is set up for telephone 
operation, the t symbol will appear in 
the display.
When you insert your Mercedes-Benz 
specified mobile telephone* into the 
telephone cradle, you will be prompted to 
enter your PIN for 30 seconds 
(
page 223). This display disappears 
when you press any button.
When your mobile telephone* is inserted 
into the telephone cradle, you will see the 
reception strength in the upper right-hand 
corner of the display.Switching on the telephone
Switching on the telephone
Press h button.
If you have programmed an unlock 
code for the telephone, you must now 
enter the code.
Enter code using buttons 1 
toR.
If necessary, correct number entered 
with the 
CLR
 soft key. Press soft key 
briefly to delete the last digit entered; 
press soft key and hold to delete the 
complete number.
Warning!
G
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 tele-
phone call. If you choose to use the tele-
phone
1 while driving, please use the 
hands-free device and only use the tele-
phone when weather, road, and traffic con-
ditions permit.
Some jurisdictions prohibit the driver from 
using a cellular telephone while driving a ve-
hicle.
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.
 
     
        
        Page 224 of 464

224 Controls in detailAudio system
Press 
OK soft key after entering correct 
code.
The telephone is unlocked. If you have 
entered an incorrect code, you must 
enter the correct code.
Switching off the telephone
Press h button for approx. three 
seconds.PROCESSING
 appears in the display until 
the telephone is off. Afterward, 
PHONE OFF
 appears in the display.
Adjusting the volume
Turn rotary control of
E
button 
during a telephone call.
The volume will increase or decrease 
depending on the direction turned.Adjusting sound
Adjust sound during a telephone call. 
Sound adjustment (
page 195).
Placing a call
Entering a telephone number and 
starting the dialing process
Enter desired telephone number using 
buttons 1 to R.
The number can have up to 32 digits, 
but only twelve of these are visible in 
the display.
If necessary, correct number entered 
with the 
CLR
 soft key. Press soft key 
briefly to delete the last digit entered; 
press soft key and hold to delete the 
complete number.
After correct telephone number has 
been entered, press s button.
Phone book
The numbers stored in the phone book of 
the mobile telephone can be called up 
either by name or number.
In addition, incoming calls are stored in the 
phone book.
iThe volume can be adjusted separately 
for telephone mode and audio mode.
iIf the telephone number has been 
saved together with a name in the 
phone book, the name will appear in 
the display.
 
     
        
        Page 230 of 464

230 Controls in detailAudio systemThe following conditions must be met for a 
“911” emergency call:
Telephone must be switched on. 
The corresponding mobile communica-
tions network must be available. 
If you cannot make an emergency call, you 
will have to initiate rescue measures 
yourself. GSM network phones
Placing a “911” emergency call using 
audio head unit with the phone locked
Press hbutton to switch to 
telephone operation. PIN?
 appears in the audio display. 
Enter 911 using the number keypad on 
the audio head unit. 
Press 
OK soft key or sbutton for 
dialing to begin. 
DIALING
 appears in the audio display 
while the telephone establishes the 
connection. 
Wait until the emergency call center 
answers, then describe the emergency. Placing a “911” emergency call using 
audio head unit with the phone 
unlocked
Press hbutton to switch to 
telephone operation. 
Enter 911 using the number keypad on 
the audio head unit. 
Press sbutton for dialing to begin. DIALING
 appears in the audio display 
while the telephone establishes the 
connection. 
Wait until the emergency call center 
answers, then describe the emergency. 
iEmergency calls may not be possible 
with all telephone networks or if certain 
network services and/or telephone 
functions are active. Check with your 
local service providers.
iIf no SIM card is in the mobile phone, NO SERVICE
 appears in the audio 
display. In that case, you only can make 
an emergency call on the mobile phone 
itself, without the use of the head unit.  
     
        
        Page 231 of 464
231 Controls in detail
Audio system
TDMA/CDMA network phones
Placing a “911” emergency call using 
audio head unit with the phone locked
Press hbutton to switch to 
telephone operation. CODE?
 appears in the audio display. 
Enter 911 using the number keypad on 
the audio head unit. 
Press 
OK soft key or sbutton for 
dialing to begin.
DIALING
 appears in the audio display 
while the telephone establishes the 
connection. 
Wait until the emergency call center 
answers, then describe the emergency. Placing a “911” emergency call using 
audio head unit with the phone 
unlocked
Press hbutton to switch to 
telephone operation. 
Enter 911 using the number keypad on 
the audio head unit. 
Press sbutton for dialing to begin. DIALING
 appears in the audio display 
while the telephone establishes the 
connection. 
Wait until the emergency call center 
answers, then describe the emergency.  
     
        
        Page 232 of 464

232 Controls in detailPower windowsOpening and closing the windows
The windows are opened and closed eletri-
cally. Switches for operating the driver and 
passenger door windows are located on 
the driver's door. A switch for operating 
the passenger door window is located on 
the passenger door.
The door windows can also be operated us-
ing the retractable hardtop switch 
(page 234). The rear side windows can 
only be operated using the retractable 
hardtop switch (
page 234) or the 
SmartKey* (
page 235).
1Left window
2Right window
Warning!
G
When closing the windows, make sure there 
is no danger of anyone being harmed by the 
closing procedure.
The closing of the door windows can be im-
mediately halted by releasing the switch or, 
if the switch was pressed past the resis-
tance point and released, by pressing the re-
spective switch.
The door windows are equipped with the ex-
press-close and automatic reversal func-
tion. If a door window encounters an 
obstruction that blocks its path in a circum-
stance where you pressed the switch past 
the resistance point and released it to close 
the window, the automatic reversal function 
will stop the window and open it slightly.
If a door window encounters an obstruction 
that blocks its path in a circumstance where 
you are closing the window by pressing and 
holding the switch, by pressing and holding 
button‹ on the SmartKey*, by pushing 
and holding the retractable hardtop switch, 
or by pressing and holding the 
,
button 
on the climate control panel or automatic 
climate control panel*, the automatic rever-
sal function will not operate.
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. Unsuper-
vised use of vehicle equipment can cause an 
accident and/or serious personal injury.