Page 134 of 506

133 Controls in detail
Control system
Control system
The control system is activated as soon as 
the SmartKey in the starter switch is 
turned to position1 or as soon as the 
KEYLESS-GO* start/stop button is in 
position1. The control system enables you 
to
call up information about your vehicle
change vehicle settings
For example, you can use the control sys-
tem to find out when your vehicle is next 
due for service, to set the language for 
messages in the instrument cluster dis-
play, and much more.
The control system relays information to 
the multifunction display.
Multifunction display
1Outside temperature
2Trip odometer
3Automatic transmission program mode
4Main odometer
5Current gear selector lever position
For more information on menus displayed 
in the multifunction display, see “Menus” 
(page 136).
iThe displays for the audio systems 
(radio, CD player) will appear in English, 
regardless of the language selected.
Warning!
G
A driver’s attention to the road and traffic 
conditions must always be his /her primary 
focus when driving.
For your safety and the safety of others, 
selecting features through the multifunction 
steering wheel should only be done by the 
driver when traffic and road conditions 
permit it to be done safely.
Bear in mind that at a speed of just 30 mph 
(approximately 50 km/h), your vehicle is 
covering a distance of 44 feet (approxi-
mately 14 m) every second. 
     
        
        Page 135 of 506

134 Controls in detailControl systemMultifunction steering wheel
The displays in the multifunction display 
and the settings in the control system are 
controlled by the buttons on the multifunc-
tion steering wheel (
page 26).Pressing any of the buttons on the multi-
function steering wheel will alter what is 
shown in the multifunction display.
The information available in the multifunc-
tion display is arranged in menus, each 
containing a number of functions or sub-
menus.
The individual functions are then found 
within the relevant menu (radio or CD op-
erations under 
Audio
, for example). These 
functions serve to call up relevant informa-
tion or to customize the settings for your 
vehicle.
1
Multifunction displayOperating the control system
2
Selecting the submenu or setting 
the volume:
Press buttonæup / to increaseçdown / to decrease
3
Telephone*:
Press buttonsto take a calltto end a call
4
Menu systems:
Press buttonèfor next menuÿfor previous menu
5
Moving within a menu
Press buttonjfor next displaykfor previous display 
     
        
        Page 138 of 506
137 Controls in detail
Control system
Menus, submenus and functions
Menu1
Menu2
Menu3
Menu4
Menu5
Menu6
Menu7
Commands/submenusStandard dis-
play
AUDIO
NAV*
Vehicle status 
message memory
Settings
Trip computer
Telephone
(page 138)
(page 139)
(page 141)
(page 141)
(page 142)
(page 158)
(page 160)
Digital speed-
ometer
Select radio 
station
Activate route 
guidance
Call up vehicle 
malfunction, warning 
and system status 
messages stored in 
memory
Reset to factory 
settings
Fuel consumption 
statistics after 
start
Load phone 
book
Call up mainte-
nance service 
display
Select satellite 
radio station* 
(USA only)
Instrument clus-
ter submenu
Fuel consumption 
statistics since the 
last reset
Search for name 
in phone book
Check engine 
oil level
Operate CD 
player
Time/Date sub-
menu
Call up range
Lighting 
submenuVehicle submenuConvenience 
submenu 
     
        
        Page 140 of 506

139 Controls in detail
Control system
Display digital speedometer
Press buttonj ork repeatedly 
until the digital speedometer appears 
in the multifunction display.
The current vehicle speed is shown in 
the multifunction display and the sta-
tus line appears.
1Digital Speedometer
2Status line with outside temperature
3Trip odometer
AUDIO menu
The functions in the 
Audio
 menu operate 
the audio equipment which you currently 
have turned on.
If no audio equipment is currently turned 
on, the message 
Audio off
 is shown in the 
multifunction display.
The following functions are available:
Select radio station
Turn on the radio (
page 204). 
Vehicles with COMAND*: Refer to 
separate operating instructions.
Press buttonè orÿ repeatedly 
until the currently tuned station 
appears in the multifunction display.1Waveband setting
2Station frequency
Press buttonk orj repeatedly 
until the desired station is found.
iYou can have the digital speedometer 
displayed instead of the outside tem-
perature in the status line. You can se-
lect the setting in the submenu 
Instr. 
cluster
 via the function 
Status line 
display
 (page 146).
Function
Page
Select radio station
139
Select satellite radio station* 
(USA only)
139
Operate CD player
140
iYou can only store new stations using 
the corresponding feature on the radio 
(page 211).
Vehicles with COMAND*: Refer to 
separate operating instructions.
You can also operate the radio in the 
usual manner. 
     
        
        Page 141 of 506

140 Controls in detailControl systemSelect satellite radio station* 
(USA only)
The satellite radio is treated as a radio 
application.
Select satellite radio with the 
corresponding soft key (SAT) 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 (
page 218). Vehicles with 
COMAND*: Refer to separate 
operating instructions.
Press buttonè orÿ repeatedly 
until the settings for the CD currently 
being played appear in the multifunc-
tion display.1Current CD (for CD changer*)
2Current track
Press buttonk orj repeatedly 
until the desired track is selected.
iFor more information on satellite radio 
operation, see “Introduction to satellite 
radio* (USA only)” (
page 213). 
Vehicles with COMAND*: Refer to 
separate operating instructions.
iTo select a CD from the magazine, 
press a number on the audio system or 
the COMAND* system key pad located 
in the center dashboard. 
     
        
        Page 161 of 506

160 Controls in detailControl systemTEL menu*
You can use the functions in the 
Tel
 menu 
to operate your telephone, provided it is 
connected to a hands-free system and 
switched on.
Switch on the telephone and Audio or 
COMAND*.
Press buttonÿ orè on the 
steering wheel repeatedly until the 
message 
Tel
 appears in the 
multifunction display.Which messages will appear in the 
multifunction display depends on whether 
your telephone is switched on or off:
If the telephone is off, the message Tel off
 appears in the multifunction 
display.
If the telephone is on:
The telephone will then search for a 
network. During this time the multi-
function display is empty.
As soon as the telephone has found a 
network, the message 
READY
 appears in 
the multifunction display.
This standby message indicates that your 
telephone is ready for use and you can 
operate it using the control system.
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 
recommend that you pull over to a safe 
location and stop before placing or taking a 
telephone call. If you choose to use the 
telephone while driving, please use the 
hands-free device and only use the tele-
phone when weather, road and traffic 
conditions permit.
Some jurisdictions prohibit the driver from 
using a cellular telephone while driving a 
vehicle.
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.
Never operate radio transmitters equipped 
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna) 
from inside the vehicle while the engine is 
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, 
possibly resulting in an accident and /or 
personal injury. 
     
        
        Page 202 of 506

201 Controls in detail
Audio system
Audio system
Audio and telephone, operation
These instructions are intended to help 
you become familiar with your 
Mercedes-Benz audio system. They con-
tain useful tips and a detailed description 
of the user functions.
Operating safety
Sound system*
Your vehicle is equipped with a sound sys-
tem. The subwoofer is located between the 
rear seats.
Warning!
G
In order to avoid distraction which could 
lead to an accident, the driver should enter 
system settings with the vehicle at a 
standstill and operate the system only when 
road and traffic conditions permit. Always 
pay full attention to traffic conditions first 
before operating system controls while 
driving.
Bear in mind that at a speed of just 30 mph 
(approximately 50 km/h), your car is 
covering a distance of 44 feet 
(approximately 14 m) every second.
Warning!
G
Any alterations made to electronic 
components can cause malfunctions.
The radio, amplifier, CD changer*, satellite 
radio*, and telephone* are interconnected. 
When one of the components is not opera-
tional or has not been removed/replaced 
properly, the function of other components 
may be impaired.
This condition might seriously impair the 
operating safety of your vehicle.
We recommend that you have any service 
work on electronic components carried out 
by an authorized Mercedes-Benz Center.
!Make sure no objects fall into the open-
ings of the subwoofer between the rear 
seats.
If necessary, contact an authorized 
Mercedes-Benz Center to remove any 
objects which may have fallen into the 
openings. 
     
        
        Page 204 of 506
203 Controls in detail
Audio system
Item
Page
1
CD changer mode selector
AUX mode selector
218
208
2
Single CD mode selector 
219
3
Radio mode selector
4
Mute function (radio)
212
Pause (CD)
223
5
Volume distribution
207
6
Sound settings
205
7
Display
8
Alphanumeric keypad
Item
Page
9
Speed dialing memory 
(telephone) in descending 
order
a
Accepting a call
(telephone)
229
b
Telephone mode selector
224
c
Speed dialing memory 
(telephone) in ascending 
order
226
d
Terminating a call
(telephone)
230
e
CD slot
f
CD ejection
220
Item
Page
g
Soft keys
204
h
Volume
205
j
Switching on/off
204
k
Manual tuning / seek 
tuning (radio)
210
Track search, reverse (CD)
223
l
Manual tuning / seek 
tuning (radio)
210
Track search,
fast forward (CD)
223