Displays and operation
238
If the operating safety of your vehicle is
impaired, park the vehicle safely as soon as
possible. Contact a qualified specialist work-
shop.
For an overview, see the instrument panel
illustration (Y page 30).
Useful information
i This Owner's Manual describes all mod-
els, series and optional equipment for your
vehicle that were available at the time of
going to press. National variations are pos-
sible. Note that your vehicle may not be
equipped with all of the functions descri-
bed. This is also the case for systems and
functions relevant to safety.
Displays and operation
Instrument cluster lighting
i Read the information on qualified special-
ist workshops: (Y page 24).
The light sensor in the instrument cluster
automatically controls the brightness of the
multifunction display. In daylight, the displays
in the instrument cluster are not illuminated.
The lighting in the instrument cluster, in the
displays and the controls in the vehicle inte-
rior can be adjusted using the brightness con-
trol knob.
Important safety notes
WARNING
G
Operating the integrated information systems
and communicationsequipmentinthevehicle
while driving will distract you from traffic con-
ditions. You could then lose control of the
vehicle. There is a risk of an accident.
Only operate these devices if road traffic con-
ditions permit. If you are unsure about the
surrounding conditions, pull over to a safe
location and make entries only while the vehi-
cle is stationary.
The brightness control knob is located on the
bottom left of the instrument cluster
(Y page 30).
X
Turn the brightness control knob clockwise
or anti-clockwise.
If the light switch is set to the Ã, T or
L position, the brightness is dependent
upon the brightness of the ambient light.
You must observe the legal requirements for
the country in which you are currently driving
when operating the on-board computer.
Speedometer with segments
The speedometer is divided into segments
only on vehicles with DISTRONIC PLUS.
WARNING
G
The segments in the speedometer indicate
which speed range is available.
If the instrument cluster has failed or mal-
functioned, you may not recognise function
restrictions relevant to safety. The operating
safety of your vehicle may be impaired. There
is a risk of an accident.
Drive on carefully. Have the vehicle checked
at a qualified specialist workshop immedi-
ately.
R
Variable SPEEDTRONIC activated
(Y page 194):
The segments light up from the start of the
scale to the selected limit speed.
R
DISTRONIC PLUS activated (Y page 196):
One or two segments in the set speed
range light up.
The on-board computer only shows messages
or warnings from certain systems in the mul-
tifunction display. You should therefore make
sure your vehicle is operating safely at all
times.
R
DISTRONIC PLUS detects a vehicle in front
moving more slowly than the stored speed:
English 
