Page 140 of 498

138 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 143 of 498
141 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 142)
(page 143)
(page 144)
(page 145)
(page 146)
(page 160)
(page 162)
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 145 of 498

143 Controls in detail
Control system
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 210). 
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.Select 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.
Function
Page
Select radio station
143
Select satellite radio station* 
(USA only)
143
Operate CD player
144
iYou can only store new stations using 
the corresponding feature on the radio 
(page 218).
Vehicles with COMAND*: Refer to 
separate operating instructions.
You can also operate the radio in the 
usual manner. 
     
        
        Page 146 of 498

144 Controls in detailControl systemOperate the CD player
Turn on the radio and select the 
CD player (
page 227). 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.
NAV* menu
The 
Nav
 menu contains the functions 
needed to operate your navigation system.
Press buttonè orÿ repeatedly 
until the message 
Nav
 appears in the 
multifunction display.
If the navigation system is switched off, 
the message 
Nav off
 appears in the 
multifunction display. 
If the navigation system is on, different 
messages, depending on the current 
state of the navigation system, appear 
in the multifunction display.
Please refer to the COMAND* manual for 
instructions on how to activate the route 
guidance system*.
iFor more information on satellite radio 
operation, see “Introduction to satellite 
radio* (USA only)” (
page 220). 
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 164 of 498

162 Controls in detailControl systemCall up range (distance to empty)
Press buttonÿ orè repeatedly 
until the first function of the Trip com-
puter menu appears in the 
multifunction display.
Press buttonj ork repeatedly 
until the message 
Range
 appears in the 
multifunction display.
The calculated range based on the 
current fuel tank level appears in the 
multifunction display.
TEL 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.
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 209 of 498

207 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
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*, telephone* and voice control 
system* are interconnected. When one of 
the components is not operational 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. 
     
        
        Page 211 of 498
209 Controls in detail
Audio system
Item
Page
1
CD changer mode selector
AUX mode selector
225
215
2
Single CD mode selector 
227
3
Radio mode selector
4
Mute function (radio)
219
Pause (CD)
231
5
Volume distribution
213
6
Sound settings
211
7
Display
8
Alphanumeric keypad
Item
Page
9
Speed dialing memory 
(telephone) in descending 
order
a
Accepting a call
(telephone)
237
b
Telephone mode selector
232
c
Speed dialing memory 
(telephone) in ascending 
order
233
d
Terminating a call
(telephone)
237
e
CD slot
f
CD ejection
227
Item
Page
g
Soft keys
210
h
Volume
211
j
Switching on/off
210
k
Manual tuning / seek 
tuning (radio)
217
Track search, reverse (CD)
230
l
Manual tuning / seek 
tuning (radio)
217
Track search,
fast forward (CD)
230 
     
        
        Page 212 of 498
210 Controls in detailAudio systemButton and soft key operation
In these instructions, the alphanumeric 
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 the unit on/off
Switching on
Turn the SmartKey in the starter switch 
to position 1 or 2. 
If the audio system was on as you 
removed the SmartKey from the starter 
switch, the audio system will 
automatically come back on as you 
turn the SmartKey to position 1 or 2.
or
Press M button.
!Do not press directly in the display 
face. Otherwise, the display will be 
damaged.
iIf the radio is switched on without the 
key in the starter switch, it will 
automatically switch off again after 
approx. 30 minutes.
If your vehicle is equipped with a 
telephone, the display may prompt you 
to enter your PIN (GSM network) or 
code (TDMA or CDMA network).