Page 130 of 416

130 Controls in detailControl system
Control systemThe 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 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
1Trip odometer
2Main odometer
iThe displays for the audio systems (ra-
dio, 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, se-
lecting features through the multifunction 
steering wheel should only be done by the 
driver when traffic and road conditions per-
mit 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 (approximate-
ly 13.5 m) every second. 
     
        
        Page 321 of 416

321 Practical hints
What to do if …?
ì 
FUNCTION
NOT AVAILABLE!
This display appears if button 
ì
 or 
í
 
on the multifunction steering wheel is 
pressed and the vehicle is not equipped 
with a telephone.
Ê 
TRUNK OPEN!
This message will appear whenever the 
trunk lid is open.
Close the trunk lid. 
W 
WASHER FLUID
CHECK LEVEL!
The fluid level has dropped to about 
1/3 of 
total reservoir capacity.
Add washer fluid (
page 271).
CRUISE CONTROL
CRUISE CONTROL
VISIT WORKSHOP!
Cruise control or Distronic* is malfunction-
ing.
Have cruise control or Distronic* 
checked by an authorized 
Mercedes-Benz Center.
_ 
ENTRY POSITION
DO NOT DRIVE!
Seat, mirrors and steering wheel have not 
yet moved to their preset driving positions.
Wait until the seat, mirrors and steer-
ing wheel have moved to their driving 
positions.
The message will disappear.
± 
DISPLAY MALFUNCTION
VISIT WORKSHOP!
Certain electronic systems are unable to 
relay information to the control system. 
The following systems may have failed:
Coolant temperature display
Tachometer
Cruise control display
Have the electronic systems 
checked by an authorized 
Mercedes-Benz Center.
Display
Possible cause
Suggested solution 
     
        
        Page 383 of 416

383 Technical terms
FSS
(F
lexible S
ervice S
ystem)
Service indicator in the multifunction 
display that informs the driver when 
the next vehicle maintenance service is 
due.
Gear range
Number of gears which are available to 
the automatic transmission for shifting. 
The automatic gear shifting process 
can be adapted to specific operating 
conditions using the selector lever.
GPS
(G
lobal P
ositioning S
ystem)
Satellite-based system for relaying 
geographic location information to and 
from vehicles equipped with special re-
ceivers. Employs CD digital maps for 
navigation.
Instrument cluster
The displays and indicator/warning 
lamps in the driver’s field of vision, in-
cluding the tachometer, speedometer, 
engine temperature and fuel gauge.KEYLESS-GO*
System for entering and operating the 
vehicle without the use of a SmartKey.
Kickdown
Depressing the accelerator past the 
point of resistance shifts the transmis-
sion down to the lowest possible gear. 
This very quickly accelerates the vehi-
cle and should not be used for normal 
acceleration needs.
Lock button
Button on the door which indicates 
whether the door is locked or un-
locked. Pushing the lock button down 
on an individual door from inside will 
lock that door.
Memory function*
Used to store three individual seat, 
steering wheel and mirror positions for 
each SmartKey or, if so equipped, KEY-
LESS-GO* card.Menu
The control system displays are ar-
ranged in menus. Each menu contains 
a number of commands for particular 
systems. In the Audio menu, for exam-
ple, you will find the commands 
Select 
radio station 
or Operate CD player
. 
Using commands, you can directly 
change the settings for your vehicle.
MON
(M
otor O
ctane N
umber)
The Motor Octane Number for gasoline 
as determined by a standardized meth-
od. It is an indication of a gasoline's 
ability to resist undesired detonation 
(knocking). The average of both the 
MON (Motor Octane Number) and 
->RON (Research Octane Number) is 
posted at the pump, also known as AN-
TI-KNOCK INDEX.
Multifunction display
Display field in the speedometer used 
to present information provided by the 
control system.