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Intelligent
Technology
Hill descent assist
The hill descent assist makes it possible to drive
down an incline at a constant speed .
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Fig. 187
Top of the center console: hill descent assist but-
ton
Fig. 188
Display: hill descent assist
.. Press the~
button in the center console
¢
fig . 187
or on the shift gate . The button will
illuminate .
" Press the button again to switch it off. The di-
ode in the button will go out .
Hill descent assist brakes all four wheels auto-
matically in order to limit speed when driving ei-
ther forwa rd or reverse on hills with a grade up to
approximately 50%.
When the hill descent assist is on, the current
driving speed, when your vehicle entered t he in-
cline is maintained.
It
is only possible to switch
on the assist when driving slower than 37 mph
(60 km/h). The assist works between approxi-
mately 2 and 19 mph (4 and 30 km/h) . The driver
can increase or decrease the vehicle speed within
these limits by depressing the accelerator or
brake pedal In addition, vehicle steerability is in-
creased due to the braking distribution when
driving in reverse.
192
There must be however sufficient ground adhe-
sion . The hill descent assist can
not
do its job if
the incline is icy or if the incl ine ground is loose
¢
& .
The system does not work at speeds between 19
and 37 mph (30 and 60 km/h). The system is
then in the ready-mode. The diode in the button
will come on . The system automatically switched
off when you drive faster than 37 mph (60 km/
h) . The diode will go out in this case.
Active control at a specific speed up to approxi -
mately 19 mph (30 km/h) will appear in the in-
strument cluster display
c:>
fig. 188 .
Two dashes
" •• " w ill appear in the ready mode .
Hill descent assist is automatically activated un-
der the following conditions:
- the diode in the button illuminates,
- veh icle speed is below approximately 19 mph
(30 km/h)
- the incline is 10%.
&
WARNING
- Always adapt your speed to the weather,
road and traffic conditi ons. Do not let the
increased safety provided tempt you into
taking risks.
-
- The hill descent assist system cannot over-
come the laws of physics. Your driving style
must always be adapted to the current road
and traffic conditions.
- The hill descent assist may not be able to
hold your vehicle at a constant speed under
all cond itions wh ile driving on an incline (for
example if ground under the vehicle is
loose).
Braking
What affects braking efficiency?
New brake pads
Du ring the first 2 50 miles (400 km), new brake
pads do not possess their full braking effect, they
have to be "broken in" first
c:>
& .
..,_
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