Startin g and autom atically releasing the
parking brake
~
When you start to drive as usual, the park-
ing brake is automatically released and your
vehicle begins to move.
When stopping at a traffic signal or stopp ing
in city traffic on vehicles with an automatic
transmission, the parking brake can be ap-
plied. The vehicle does not have to be held
w ith the footbrake . The park ing brake elimi-
nates the tendency to creep with a drive range
engaged. As soon as you dr ive off as usual,
the park ing brake is released automatically
and the vehicle starts to move.
Starting on slopes
When starting on inclines, the start ing assist
prevents the vehicle from unintentionally roll-
ing back. The braking force of the parking
brake is not released until sufficient driving
force has been built up at the wheels.
(D Tips
For safety reasons, the park ing brake is re-
leased automatically only when the dr iv-
er's safety belt is engaged in the buckle.
Starting off with a trailer
To prevent rolling back unintentionally on an
incline, do the following:
~
Keep the switch @ c::> page 85, fig . 98 pulled
and depress the accelerator. The park ing
brake stays applied and prevents the vehicle
from roll ing backward.
~
You can release the switch @ once you are
sure that you are developing enough driving
force at the wheels by depressing the accel-
erator.
Depending on the weight of the rig (vehicle
and trai ler) and the severity of the incline , you
may roll backwards as you start. You can pre-
vent roll ing backwards by holding the parking
brake switch @ pulled out and accelerating -
just as you would when starting on a hill wit h
a conventional hand brake.
On th e ro a d 87
Emergency braking
In the event that the conventional brake sys-
tem fails or locks.
~
In an emergency, pull the switch @
c::>
page 85, fig. 98 and continue to pull it to
slow your vehicle down with the parking
brake.
~
As soon as you release the switch @ or ac-
celerate, the braking process stops.
If you pull the switch @ and hold it above a
speed of about 5 mph (8 km/h), the emergen-
cy braking funct ion is initia t ed. The vehicle is
braked at all four wheels by activating the hy-
draulic brake system. The brake performance
is similar to making an emergency stop c::>
&..
In order not to activate t he emergency brak-
ing by mist ake, an audib le warning tone (buz-
zer) sounds when the switch @ is pulled. As
soon as the switch @ is released, or the accel-
erato r pedal is depressed, emergency braking
stops.
A WARNING
...--
Emergency braking should only be used in
an emergency, when the normal foot brake
has fa iled or the brake pedal is obstructed .
Using the parking brake to perform emer-
gency braking will slow your vehicle down
as if you had made a full brake application .
The laws of physics cannot be suspended
even with ESC and its associated compo -
nents (ABS, ASR, EDS). In corners and
when road or weather conditions are bad,
a full brake application can cause the vehi-
cle to skid or the rear end to break away -
risking an accident.
Speed warning system
Overview
The speed warning system helps you to keep
your driving speed below a set speed limit.
The speed warn ing system warns if the driver
exceeds a previously stored maximum speed.
A warn ing tone w ill sound as soon as the
Ill>
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