Note
s onthe instrument clus ter and on-
board co mputer &
WARNING Risk of accident due toan
instrument clus ter malfunction
If th e instrument clus ter has failed or mal‐
functioned, you may not notice restrictions to
saf ety-re leva nt sy stem functions.
The operating saf ety of your vehicle may be
impaired. #
Drive on carefull y. #
Have theve hicle checked immediately
at a qualified specialist workshop. If
yo u are uncer tain rega rding the operational
saf ety of your vehicle, park theve hicle safely as
soon as possible. Inform a qualified specialist
wo rkshop.
The on-board computer will show only messages
and warnings from cer tain sy stems on the dis‐
pla y.Yo u should therefore make sure your vehicle
is operating safely at all times.
Yo u can find an overview of the indicator and
wa rning lamps on the instrument clus ter in "At a
gl ance". Overview of
the instrument clus ter Instrument clus
ter (e xamp le)
1 Speedome ter
2 Multifunction display
3 Rev counter
4 Coolant temp erature display
5 Fuel le vel
Speedome ter
In vehicles with Active Dis tance Assi st
DISTRONIC, there are illuminated segments on
th e speedome ter dial. These segments show
you what speed range is
av ailable:
R Variable limiter activated (/ page159)
The segments light up from thest art of the
scale tothe selected limit speed.
R Active Dis tance Assi stDISTRONIC switched
on (/ page 162)
One or two segments light up in the sa ved
speed range.
R Active Dis tance Assi stDISTRONIC de tects a
ve hicle in front.
The segments light up from the speed of the
ve hicle in front up tothe sa ved speed.
Yo u can show the speed as a digital speedome ter
on the display as well.
If yo uch ange your vehicle's wheel size, check its
assignment tothe wheel size group
(/ page 258). If the assignment changes with‐
out recoding the cont rol units in theve hicle, the
speedome ter will not display the speed accu‐
ra tely. The cur rent vehicle speed may then be
higher than the speed shown bythe speedome‐
te r.Driving and driving sa fety sy stems may then
be operationally impaired or may de tect a mal‐
function and switch themselves off.
In some count ries, an audible signal will sound
and/or a message will appear on the display
when theve hicle reaches the maximum speed
permitted bylaw, e.g. at 120 km/h.
Re v counter
* NO
TEEngine damage due tomaximum
engine speed being exceeded If
th e maximum permissible engine speed is
exc eeded, the engine may be damaged. #
Avoid driving in there d speed range
(danger zone). Outside
temperature display
Yo u should pay special attention toroad condi‐
tions when temp eratures are around freezing
point.
The outside temp erature is displa yed on the mul‐
tifunction display (/ page182).
Changes in the outside temp erature will be dis‐
pla yed af ter a short dela y. 18 0
Instrument clus ter and on-board computer
Coolant
temperature display &
WARNING Risk of burn s when opening
th e bonn et
If yo u open the bonn etwhen the engine has
ove rheated or when there is a fire inthe
engine compartment, thefo llowing situations
may occur:
R You could come into con tact with hot
ga ses.
R You could come into con tact with other
hot, escaping operating fluids. #
Before opening the bonn et, allow the
engine tocool down. #
Intheeve nt of a fire inthe engine com‐
partment, keep the bonn etclosed and
call thefire service. The coolant
temp erature display is located within
th e instrument clus ter's rev counter.
During normal driving and if the coolant le vel is
cor rect, the display is permitted torise to120°C. Overview and operation of
the on-boa rd
compu ter &
WARNING Risk of distraction from infor‐
mation sy stems and communications
equipment
If yo u operate information and communica‐
tion equipment integ rated in theve hicle when
driving, you will be distracted from the tra ffic
situation. This could also cause youto lose
control of theve hicle. #
Only operate this equipment when the
traf fic situation permits. #
Ifyo u cannot be sure of this, stop the
ve hicle whilst paying attention toroad
and traf fic conditions and ope rate the
equipment with theve hicle stationar y. Yo
u must obse rveth e legal requirements forthe
country in whi chyou are cur rently driving when
ope rating the on-board computer. 1
Display
2 Right contro l panel
3 Left control panel
When you swit ch the power supply on, the on-
board computer will be activated.
Ve hicles with manual transmission: if youre mo ve
th eke y,then quickly re-inse rtit and switch the
po we r supp lyon, the on-board computer and the
instrument clus ter will not be activated.
Yo u can control the displa ysand the settings on
th e on-board computer with thesteering wheel
buttons on the left 3and right 2contro l pan‐
els.
Ste ering-wheel but tons Left control panel on
thest eering wheel
00E2 R
Call up the main menu
0064
0063 Press briefly
R Scroll thro ugh lists
R Select menu or function
R IntheRadio orMedia menu, open
th e tra ckorstation list and select
a st ation, audio track or video
scene.
R IntheTelephone menu, switch to
th ete lephone book and select a
name or a telephone numbe r.
0064
0063 Press and hold
R Quickly scroll thro ugh all lists
R IntheRadio orMedia menu, use
ra pid scroll toselect a station,
audio track or video scene.
R IntheTelephone menu with the
te lephone book open, start rapid
scroll. Instrument clus
ter and on-board computer 181