Mercedes-Benz Actros 2017, Operating Instructions Manual

Page: 130 / 436

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 differences 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 31).
Instrument cluster
Important safety notes
G
WARNING
Operating the integrated information systems
and communications equipment in the vehicle
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.
G
WARNING
If the instrument cluster has failed or there is
a malfunction, you may not know about
safety-related function restrictions. The oper-
ating safety of your vehicle may be affected.
There is a risk of an accident.
Immediately stop the vehicle while paying
attention to the traffic conditions and consult
a qualified specialist workshop.
Observe the legal requirements for the country
you are currently in while operating the instru-
ment cluster.
The on-board computer only shows messages or
warnings from certain systems in the display.
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.
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.
Example: instrument cluster
:
Economical operating 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 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.
128
Instrument cluster
On-board computer and displays