..... N
co ~ CX)
..... I.Cl U"I
.... I.Cl .....
wheels can spin even with these ass istance
systems that cannot always he lp to reduce
the risk of loss of vehicle control.
@ Tips
-ABS and AS R on ly work correctly when a ll
fo ur whee ls are e quipped w ith ide ntical
Switching on /off
Intelligent Technology
tires. Diff eren t tire s izes can lead to a red uc
tion i n engine po wer .
- You may hear noises when t he sy stems de
scribe d are workin g.
- Whe n in sta lling a facto ry-s up plied roo f ra ck
system o n the roof r ailing , the ESC wi ll
adapt itself to a different center of gravity .
ESC turns on automatically when you start the engine.
Fig . 18 5 Versio n A: Lowe r cente r conso le,~ OFF b utto n
The follow ing s ituations are except ions where it
may be usef ul to sw itch on offroad mode to allow
the wheels to spi n:
- Rocking the vehicle to free it when it is stuck
- Driv ing in deep snow or on loose ground
Offroad mode on
~ Q:)01_1 _ --.!'3.- -ft.
Fig. 18 6 Version B: Uppe r center console,~ OFF button
- Driving with snow chains
- Dr iving down hill wh ile braking on loose ground
- Dr iving on ro ugh te rra in when m uch of the car's
weight is lifted off the wheels (axle articula
tion)
Offroad mode off
Behavio r
The ESC and AS R stabilization f unctions Th
e fu ll sta bilization f unction of the ESC
a re limited
c:> &. .
Operation Press the 1.$ OFF I button.
Indicator II turns on.
lights
Driver mes- Stabilization
control (ESC): Offroad.
sages Wa rning! Restricted stability
A WARNING
- You should only sw itch o ffroad mode o n if
yo ur dr iv ing abilit ies a nd road cond it io ns
permit.
- The stabilization function is limited when offroa d mode is switched on. The dr iv ing
wheels co uld spi n and th e vehicle cou ld
swerve, es pec ially on s lick o r sli ppery roa d
s ur fac es. and ASR
is avai lab le again.
P ress t he
1.$ OFFI button aga in.
II turns off.
Stabilization control (ESC ): On
(D Tips
Offro ad mode ca nno t be switche d on whe n
adaptive c ruise co ntro l* is switched on.
191
Intelligent Technology
Hill descent assist
The hill descent assist makes it possible to drive
down an incline at a constant speed .
~~,·~ ('l)ofF ___ P..1 --- fl~ IIL..~
---
Fig. 187 Top of the center conso le: 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 ass ist brakes all four wheels auto
matically in order to limit speed when driving ei
ther forwa rd o r reverse on hills with a grad e up to
approximately 50%.
When the hill descent assist is on, the current
driving speed, when your vehicle entered the 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 app roxi
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 sw itched
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 cond itions. Do not let the
increased safety provided tempt you into
taking risks.
-
-The hill descent assist system cannot over
come the laws of phys ics. Your driving style
must always be adapted to the current road
and traffic conditions.
- The hill descent assist may not be ab le 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:> &. ..,_
