Mercedes-Benz Actros 2017, Operating Instructions Manual

Page: 270 / 436

ASR is also deactivated. Activate Stability Con-
trol Assist as soon as the situations previously
described are no longer present.
! If you drive with more than two trailers/
semitrailers, you must switch off Stability
Control Assist. Otherwise, malfunctions or
faults can occur as a result.
When you start the engine, Stability Control
Assist is automatically activated.
X Press the
k
button.
If the
k
indicator lamp in the instrument
cluster lights up, Stability Control Assist is
deactivated.
Differential locks
G
WARNING
When driving off-road or driving with an
engaged differential lock in the automatic
driving program, the electronic management
system may perform unwanted gear changes.
Due to the interruption in the tractive power,
the vehicle may roll backwards on uphill
slopes, for instance. There is a risk of an acci-
dent.
Always drive carefully and be prepared to
brake. In particularly difficult driving condi-
tions, switch to the manual driving program.
G
WARNING
If you engage the differential locks when driv-
ing on a firm, high-traction surface, the steer-
ability of the vehicle is severely impaired. You
could lose control of the vehicle, especially
when activating on a bend. There is a risk of an
accident.
Disengage the differential locks immediately
on a firm, high-traction surface.
G
WARNING
If ABS is deactivated, the wheels may lock
when braked. As a result, the vehicle can no
longer be steered. There is an increased risk
of skidding and an accident.
Always leave ABS on when driving on roads
and firm surfaces.
! Observe the following points. You could oth-
erwise damage the differential lock.
R
Do not engage the differential lock if the
drive wheels are spinning.
R
Engage the differential lock only when the
vehicle is stationary or when travelling at
walking pace.
R
Do not engage the differential lock while
depressing the accelerator or brake pedal.
R
Pull away slowly after engaging the differ-
ential lock. The differential lock teeth may
not be fully engaged.
R
Do not drive on high-grip surfaces with the
differential lock engaged.
R
Do not exceed a maximum speed of
50 km/h with the differential lock engaged.
! If the
£
display flashes when the differ-
ential locks are switched off, briefly change
speed, e.g. pull away, or change your direc-
tion of travel. Do not drive any further if the
£
display flashes. Otherwise, the differ-
ential gear system may be damaged.
268
Operation
Driving mode