Useful information
These Operating Instructions describe all the
models and standard and optional equipment
of your vehicle that were available at the time
of going to print. Country-specific deviations
are possible. Bear in mind that your vehicle
may not be equipped with all the functions
described. This also applies to safety-relevant
systems and functions.
Read the information on qualified specialist
workshops: (
Y
page 22).
Instrument cluster
Important safety notes
G
WARNING
If you operate information systems and com-
munication equipment integrated in the
vehicle while driving, you will be distracted
from traffic conditions. You could also lose
control of the vehicle. There is a risk of an
accident.
Only operate the equipment when the traffic
situation permits. If you are not sure that
this is possible, park the vehicle paying
attention to traffic conditions and operate
the equipment when the vehicle is station-
ary.
G
WARNING
If the instrument cluster has failed or mal-
functioned, you may not recognize function
restrictions in systems relevant to safety.
The operating safety of your vehicle may be
impaired. There is a risk of an accident.
Pull over as soon as it is safe to do so and
consult a qualified specialist workshop.
You should therefore make sure your vehicle is
operating safely at all times. Otherwise, you
could cause an accident by driving an unsafe
vehicle. If your vehicle is not operating safely,
stop immediately, paying attention to the road
and traffic conditions.
Observe the legal requirements for the country
you are currently in while operating the instru-
ment cluster.
Rev counter
!
If you exceed the maximum permissible
engine speed, the warning tone sounds.
You should not drive and change gear by the
sound of the engine, but according to the
engine speed shown in the rev counter.
Avoid driving in the red overrevving range.
This could lead to engine damage.
Rev counter (example: instrument cluster with
large screen)
:
Economical speed range (green)
;
Engine brake operating range (yellow)
=
Overrevving range, danger of engine dam-
age (red)
If the
W
indicator lamp in the instrument
cluster lights up, the engine speed is too high,
e.g. if you select a low gear when shifting
down. Observe further information in the event
window of the on-board computer.
X
Decelerate using the service brake.
or
X
Shift up a gear.
The
W
indicator lamp in the instrument
cluster goes out.
General notes on the rev counter:
R
Observe the rev counter while driving and
stay within economical speed range
:
.
In some situations, it may make sense to
operate the engine outside economical
engine speed range
:
, e.g. on uphill gradi-
ents or when overtaking.
R
If you drive the vehicle within economical
engine speed range
:
, you achieve low fuel
consumption and reduced wear.
R
In engine braking mode, use yellow engine
speed range
;
. The highest engine braking
effect will be achieved just before red over-
revving range
=
.
68
Instrument cluster
On-boar
dc
omputer
and
disp
lays
