Braking With Anti-Lock Protection - Mercedes-Benz Unimog Operating Instructions Manual

X
Vehicles with Telligent
slippery road surfaces, also depress the
clutch pedal.
The engine braking effect cannot affect the
ABS control system.

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.
If ABS intervenes when braking, you will feel
the steering wheel vibrate slightly.
X
If ABS intervenes: keep the brake pedal
firmly depressed until the braking situation
has passed.
X
During full brake application: depress
the brake pedal with full force.
During ABS braking intervention, the contin-
uous brake and the differential locks are dis-
engaged automatically.
The following symbols can appear in the sta-
tus area of the on-board computer:
! s: anti-lock protection for the
R
tractor vehicle is deactivated.
! u: anti-lock protection for the
R
tractor vehicle and trailer are deactivated.
! r: there is a possibility of the
R
trailer being overbraked. Observe the
trailer in the exterior rear view mirror and
avoid heavy braking. Thereby, the tractor/
trailer combination remains stable.
ABS off-road program
®
gearshift: on
The ABS off-road program can be activated
for off-road driving. When braking at speeds
of between approximately 40 and 15 km/h,
the ABS off-road program allows the wheels
to lock briefly. This reduces the braking dis-
tance on corresponding surfaces.
At speeds below approximately 15 km/h,
ABS is deactivated and the wheels may lock.
The steerability of the vehicle is impaired
when the wheels are locked.
ABS on the trailer cannot be controlled using
button :.
X
X
G
WARNING
If the ABS Off-road program is activated, 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.
Deactivate the ABS Off-road program on pub-
lic roads and firm surfaces.
To activate the ABS off-road program:
press button :.
ABS is in the off-road program.
The indicator lamp in the status area
of the on-board computer lights up.
To deactivate the ABS off-road program:
press button : once more.
The ABS off-road program is switched off
and ABS is activated.
The indicator lamp in the status area
of the on-board computer goes out.
Brakes
165
Z