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136 Instrument cluster and on-board computer
Notes on the instrument cluster and on-
board computer
& WARNING Risk of accident due to an
instrument cluster malfunction
If the instrument cluster has failed or mal‐
functioned, you may not notice restrictions to
safety-relevant system functions.
The operating safety of your vehicle may be
impaired.
Drive on carefully.
#
Have the vehicle checked immediately
#
at a qualified specialist workshop.
If you are uncertain regarding the operational
safety of your vehicle, park the vehicle safely as
soon as possible. Inform a qualified specialist
workshop.
The on-board computer will show only messages
and warnings from certain systems on the dis‐
play. You should therefore make sure your vehicle
is operating safely at all times.
You can find an overview of the indicator and
warning lamps on the instrument cluster in "At a
glance".
Overview of the instrument cluster
Instrument cluster (vehicles without steering
wheel buttons)
1
Speedometer
2
Multifunction display
3
Tachometer
4
Set the instrument lighting, change values or
settings, scroll through lists
5
Selects a submenu or resets values
6
Selects the menu or display
Instrument cluster (vehicles with steering wheel
buttons)
1
Speedometer
2
Multifunction display
3
Tachometer
4
Coolant temperature display
5
Fuel level
Fuel filler flap location t: the fuel filler
cap is on the left
6
Adjusts the instrument lighting
Speedometer
Vehicles with steering wheel buttons:
In vehicles with Active Distance Assist
DISTRONIC, there are illuminated segments on
the speedometer dial.
These segments show you what speed range is
available:
Variable limiter activated (
R
The segments light up from the start of the
scale to the selected limit speed.
Active Distance Assist DISTRONIC switched
R
on (
page 116)
/
One or two segments light up in the saved
speed range.
Active Distance Assist DISTRONIC detects a
R
vehicle in front.
The segments light up from the speed of the
vehicle in front up to the saved speed.
You can show the speed as a digital speedometer
on the display as well.
If you change your vehicle's wheel size, check its
assignment to the wheel size group
(
page 218). If the assignment changes with‐
/
out recoding the control units in the vehicle, the
speedometer will not display the speed accu‐
rately. The current vehicle speed may then be
higher than the speed shown by the speedome‐
ter. Driving and driving safety systems may then
be operationally impaired or may detect a mal‐
function and switch themselves off.
/
page 115)
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