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Brakes
240
the on-board computer for approximately
3 seconds. The ! indicator lamp is sup-
plemented with 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 described 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:
the trailer/semitrailer does not have ABS
R
the ABS of the trailer/semitrailer has failed
R
ABS has failed completely
R
As a result, you could lose control of the vehi-
cle and cause an accident.
Always adapt your driving style to the prevail-
ing road and weather conditions and maintain
a sufficient, safe distance from other road
users. Avoid full brake applications; except in
emergency situations.
Anti-lock protection improves the directional
stability and the steerability of the vehicle or
tractor/trailer combination during braking.
If you fail to adapt your driving style or if you
are inattentive, the driving safety systems can
neither reduce the risk of an accident nor
override the laws of physics. Driving safety
systems are merely aids designed to assist
driving. You are responsible for the distance
to the vehicle in front, for vehicle speed and
for braking in good time. Always adapt your
driving style to the prevailing road and
weather conditions and maintain a sufficient,
safe distance from other road users. Drive
carefully.
If ABS is deactivated or if there is a malfunc-
tion in the vehicle's brake system, Active
Brake Assist is automatically deactivated.
When ABS is intervening:
X
Continue to depress the brake pedal until
the braking situation is over.
When ABS is intervening, the continuous
brake is switched off. The à indicator
lamp in the instrument cluster remains on.
During a full brake application:
X
Depress the brake pedal with force.
If you want to drive the tractor vehicle with a
trailer/semitrailer with ABS or an electronic
brake system:
X
Connect a control cable to the socket or to
the ABS plug (
Y
page 313).
If you want to drive the semitrailer tractor
vehicle without a trailer or with a trailer with-
out ABS:
X
Insert the control cable into the blank
socket.
Deactivating/activating ABS
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.
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