Page 110 of 400

110 Controls in detailInstrument clusterCoolant temperature display
Turn the SmartKey in the starter switch to 
position1 or2.
Call up the trip odometer and main 
odometer by pressing buttonè 
orÿ on the multifunction steering 
wheel (
page 114).
Press buttonj ork until the 
coolant temperature display appears.During severe operating conditions, e.g. 
stop-and-go traffic, the coolant tempera-
ture may rise close to 248°F (120°C).
The engine should not be operated with 
the coolant temperature above 248°F 
(120°C). Doing so may cause serious en-
gine damage which is not covered by the 
Mercedes-Benz Limited Warranty.
Warning!
G
Driving when your engine is badly 
overheated can cause some fluids which 
may have leaked into the engine 
compartment to catch fire. You could be 
seriously burned.
Steam from an overheated engine can 
cause serious burns and can occur just 
by opening the hood. Stay away from 
the engine if you see or hear steam com-
ing from it.
Turn off the engine, get out of the vehicle 
and do not stand near the vehicle until the 
engine has cooled down.
iExcessive coolant temperature triggers 
a warning in the multifunction display. 
         
        
        
     
        
        Page 113 of 400

113 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. The control system 
enables you to
call up information about your vehicle
change vehicle settings
For example, you can use the control 
system to find out when your vehicle is 
next due for service, to set the language 
for messages in the instrument cluster 
display, and much more.
The control system relays information to 
the multifunction display.
Multifunction display
1Outside temperature
2Main odometer
3Trip odometer
4Automatic transmission program mode
5Current gear selector lever position
6Digital clock
iThe displays for the audio systems 
(radio, CD player, cassette 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 
(approximately 13.5 m) every second. 
         
        
        
     
        
        Page 119 of 400
119 Controls in detail
Control system
Select radio station
Turn on the radio (
page 176). 
Vehicles with COMAND*: 
Refer to separate operating 
instructions.
Press buttonè orÿ repeatedly 
until you see the currently tuned 
station in the display.
1Station frequency
2Waveband setting
3Setting for station selection using 
memory
Press buttonk orj repeatedly 
until the desired station is found.
The type of search depends on the 
setting for the station tuning 
(page 132):
The next stored station is selected 
(SP)
Station searchSelect satellite radio station*
The Sirius-Satellite-Radio is treated as a 
radio application.
Select SAT radio with the correspond-
ing softkey in the radio menu.
1Channel name or number
2SAT mode and preset number
3Setting for station selection using 
memory
iYou can only store new stations using 
the corresponding feature on the radio 
(page 181). 
Vehicles with COMAND*: 
Refer to separate operating 
instructions.
You can also operate the radio in the 
usual manner.
 
         
        
        
     
        
        Page 120 of 400
120 Controls in detailControl system
Press buttonk orj repeatedly 
until the desired channel is found.Operate the CD player*
Turn on the radio and select the CD 
player (
page 189). 
Vehicles with COMAND*:
Refer to separate operating 
instructions.
Press buttonè orÿ repeatedly 
until the settings for the CD currently 
being played are shown in the display.
1Current track
2Current CD (for CD changer*)
Press buttonk orj repeatedly 
until the desired track is selected.
iFeature description is based on 
preliminary information available at 
time of printing.
For more information on satellite radio 
operation, see “Satellite radio (SAT)* 
(USA only)” (
page 182). 
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 122 of 400

122 Controls in detailControl systemMalfunction memory menu
Use the malfunction memory menu to scan 
malfunction and warning messages that 
may be stored in the system. What 
information is shown in the display 
depends on whether malfunctions have 
actually occurred.
Press buttonè orÿ repeatedly 
until you see the malfunction message 
memory in the display.
No malfunction messages
If no malfunctions have occurred, the 
message in the display is: 
NO MALFUNCTIONMalfunctions have occurred
If malfunctions have occurred, you will see 
the number of malfunctions in the display:
1Number of malfunctions
Press buttonk orj.
The stored messages will now be dis-
played in order. For malfunction and 
warning messages, see “Messages in 
the display” (
page 280).
Should any malfunctions occur while 
driving, the number of malfunctions will 
reappear in the display when the SmartKey 
in the starter switch is turned to position0 
or removed from the starter switch.
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 280).
iThe message memory will be cleared 
when you turn the SmartKey in the 
starter switch to position1 or2. You 
will then only see high-priority 
messages in the multifunction display 
(page 280). 
         
        
        
     
        
        Page 123 of 400

123 Controls in detail
Control system
Settings menu
In the 
SETTINGS
 menu there are two 
functions:
The function 
RESET TO FACTORY 
SETTINGS
, with which you can reset all 
the settings to the original factory 
settings.
A collection of submenus with which 
you can make individual settings for 
your vehicle.
Press buttonè orÿ repeatedly 
until the 
SETTINGS
 menu is seen in the 
display.Resetting all settings
You can reset all the functions of all 
submenus to the factory settings.
Press the reset button in the 
instrument cluster (
page 22) for 
approximately three seconds.
In the display you will see the request 
to press the reset button again to 
confirm.
Press the reset button again.
The functions of all the submenus will 
reset to factory settings.
iThe settings you have changed will not 
be reset unless you confirm the action 
by pressing the reset button a second 
time. Approximately five seconds after 
pressing the reset button for the 
second time, the 
SETTINGS...
 menu 
reappears in the display.
For safety reasons, the following 
functions are not reset while driving:
the 
LIGHT CIRCUIT HEADLIGHT MODE
 
function in the 
LIGHTING
 submenu
the 
SETTINGS KEY-DEPENDENT 
function in the 
CONVENIENCE
 
submenu 
         
        
        
     
        
        Page 125 of 400
125 Controls in detail
Control system
The table below shows what settings can 
be changed within the various menus. 
Detailed instructions on making individual 
settings can be found on the following 
pages.INSTRUMENT CLUSTER
LIGHTING
VEHICLE
CONVENIENCE
Set time (hours)
Set daytime running lamp mode 
(USA only)
Set station selection mode 
(radio)
Activate easy-entry/exit feature
Set time (minutes)
Set locator lighting
Set automatic locking
Set key-dependency
Select time display mode
Exterior lamps delayed shut-off
Set parking position for exterior 
rear view mirror
Select temperature display 
mode
Interior lighting delayed shut-off
Select speedometer display 
modeSelect languageSelect display (speed display or 
outside temperature) 
         
        
        
     
        
        Page 130 of 400

130 Controls in detailControl system
With daytime running lamp mode 
selected and the exterior lamp switch 
at position0, the following lamps will 
come on automatically when the 
engine is turned on:
Parking lamps and low beam 
headlamps
License plate lamps (in low ambient 
light conditions)Setting locator lighting
During darkness, the following lamps will 
come on when the exterior lamp switch is 
in positionU, the locator lighting 
feature is activated, and the vehicle is 
unlocked by SmartKey:
Parking lamps
Tail lamps
License plate lamps
Front fog lamps
To activate locator lighting:
Make sure the function 
LOCATOR 
LIGHTING
 is set.
Turn the exterior lamp switch to 
positionU.
The locator lighting switches off when the 
driver’s door is opened. It switches off 
automatically after a period of approxi-
mately 40 seconds.
Move the selection marker with 
theæ orç button to the LIGHTING 
submenu.
Press buttonj ork repeatedly 
until you see this message in the 
display: 
LOCATOR LIGHTING
.
The selection marker is on the current 
setting.
Pressæ orç to select the 
desired setting.
The locator lighting will be switched on 
or off.
iIf you turn the exterior lamp switch to 
another position, the corresponding 
lamp(s) will switch on.
For safety reasons, resetting the LIGHTING
 submenu to factory settings 
(
page 124) while driving will not 
reset the daytime running lamp mode.
In the display you will then see the 
message: 
LIGHTING – CANNOT BE 
TOTALLY RESET TO FACTORY SETTINGS 
WHILE DRIVING
!.