139 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
position 1. 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
The multifunction display consists of the
display fields in the speedometer and the
tachometer. In its default state, the left
multifunction display shows the main
odometer and the outside temperature,
while the trip odometer appears in the
right multifunction display. This default
setting is referred to as the standard
display.
1Main odometer
2Outside temperature
3Current gear selector lever position
4Trip odometer
5Automatic transmission program mode
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 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
(approximately 14 m) every second.
374 Practical hintsWhat to do if …Left display
Right display
Possible cause/consequence
Possible solution
Check doors
2
You are attempting to drive with
one or more doors open.
Close the doors.
Vehicles with KEYLESS-GO*:
You are pressing the lock button on
the door handle and at least one
door is open.
±
Visit
workshop
Certain electronic systems are un-
able to relay information to the con-
trol system. The following systems
may have failed:
Coolant temperature gauge
Tachometer
Have the electronic systems checked by an
authorized Mercedes-Benz Center
(page 336).
Engine
Service
There may be a malfunction in the
fuel injection system
ignition system
exhaust system
fuel system
Have the engine checked as soon as possible
by an authorized Mercedes-Benz Center
(page 336).
