Mercedes-Benz Actros 2017, Руководство по эксплуатации

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Have the compressed-air system repaired at a
qualified specialist workshop.
Do not let anyone enter or exit the vehicle during
the test. This avoids you mistaking pressure loss
from the air-sprung seats or the level control
system for a leak.
X Stop the vehicle on a level surface.
X Apply the parking brake.
X
Use chocks to safeguard the vehicle against
rolling away.
X Release the parking brake.
X Switch the ignition lock to the drive position.
X
Call up the
Reserve pressure
menu window
in the on-board computer in the
ã
Monitor-
ing info menu (
Y
page 148).
X Run the engine until the display shows a res-
ervoir pressure of at least 11 bar.
X
Switch off the engine.
X Switch the ignition lock to the drive position.
X Call up the
Reserve pressure
menu window
in the on-board computer again.
X
Depress the brake pedal and keep it in this
position.
X Read off the reservoir pressure after approx-
imately 1 minute.
X
Read off the reservoir pressure again after
another minute.
If no significant loss of pressure can be detec-
ted in the Reserve pressure menu window
in the on-board computer after this minute,
the compressed-air brake system is free from
leaks.
If a significant loss of pressure is detected,
the compressed-air brake system is leaking.
X If the compressed-air brake system is leaking,
have it checked and repaired by a qualified
specialist workshop.
ABS (Anti-lock Braking System)
General notes
ABS controls the braking pressure so that the
wheels do not lock under braking. This means
that the vehicle can still be steered while brak-
ing.
ABS is operational from walking pace, regard-
less of road surface conditions. If the road is
slippery, ABS intervenes even if you only brake
gently.
i Vehicles with engaging four-wheel drive
(VG 3000): always deactivate ABS when driv-
ing off-road.
ABS display check
G
WARNING
If ABS is malfunctioning, the wheels could
lock when braking. The steerability and brak-
ing characteristics are thus severely impaired.
There is an increased risk of skidding and an
accident.
Drive on carefully. Have the ABS checked at a
qualified specialist workshop as soon as pos-
sible.
The anti-lock protection function is not guaran-
teed if, after the ignition is switched on:
R
no brake system display appears in the status
area of the on-board computer or
R
the display does not go out after 3 seconds or
R
the display does not go out when the vehicle
pulls away
X
Switch the ignition lock to the drive position.
The
!
indicator lamp for ABS equipment is
shown in grey in the status area of the on-
board computer for approximately 3 seconds.
The
!
indicator lamp is supplemented by
the
s
,
r
or
u
indicator lamps for
towing vehicles and/or trailers/semitrailers.
If the electronic control detects ABS faults, a
corresponding event window appears in the on-
board computer. A coloured indicator lamp for
the affected ABS equipment also lights up in the
status area of the on-board computer as descri-
bed above.
Braking with anti-lock protection
G
WARNING
The wheels of the trailer/semitrailer may lock
when braking and the vehicle combination
may become unstable if:
R
the trailer/semitrailer does not have ABS
R
the ABS of the trailer/semitrailer has failed
R
ABS has failed completely
Brakes
245
Driving mode
Z