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You can re lease the switch once you are sure
that you are developing enough driving force at
the wheels by depressing the accelerator .
Depending on the weight of the rig (vehi cle and
tra iler) and the severity of the incline, you may
ro ll backwards as you start . You can prevent roll -
ing backwards by holding the parking brake
switch pulled out and accelerating - j ust as you
wou ld when starting on a hill with a conventiona l
hand brake .
Emergency braking
In the event that the conven tional brake system
fails or locks.
~
In an emergency, pull the sw itch and cont inue
to pull it to slow your veh icle down with the
parking brake.
~
As soon as you release the switch or accelerate,
the braking process stops .
If you pull the sw itch and hold it above a speed of
about 5 mph (8 km/h) , the eme rgency braking
function is init iated . The vehicle is braked at all
four wheels by activating t he hydraulic brake sys-
te m . The brake perfo rman ce is sim ila r t o making
an e m ergen cy st op ~ ,& .
In o rder not to activate the emergency brak ing by
mista ke, an audib le wa rning tone (buzze r)
sounds w hen the sw itch is pulled. As soon as t he
sw itch is rele ased, or t he acce le ra to r pedal is de-
pressed, eme rgency bra king stops.
A
WARNING
Emergency bra king should only be use d in an
emergency, w hen the normal foot brake has
fai led or the bra ke pedal is obstructed . Using
the par king brake to perfo rm emergency
brak ing will slow your vehicle down as if you
had made a full bra ke ap plication . The laws of
physics cannot be suspended even wit h ESC
and its associated components
(ABS, ASR,
EDS). In corners and when road o r weath e r
condi t ions ar e bad, a fu ll brake a pplication
can ca use the vehicle to sk id or the rear end to
break away· risking an accident .
D r iving
Driver messages in the instrument cluster
Caution: Vehicle parked too steep
Th is message appears when the pa rking bra ke is
applie d on an incline that exceeds about 30%.
In this case the braki ng power of the pa rking
brake may not be adequate to prevent the ve hi-
cle from roll ing uninten t ionally.
Press brake pedal to release park ing brake
This dr iver message appears when the sw itch to
re lease the par king brake was pressed. The park-
ing brake can only be released if you step o n the
brake pedal and at the same time press the
switch or you automatica lly re lease the park ing
bra ke w ith t he sta rtin g ass ist ~
page 90 .
r.lJ
Parking brake malfunction!
This dr iver message appears together w ith the
yellow
rlJ
symbol whe n there is a parki ng brake
malfu nction .
Start/Stop
system
Description
Applies to vehicles: wit h Start-Stop-Syste m
The Sta rt -Stop -System can he lp increase fuel
economy and reduce CO2 emissions.
In t he Start -St op -mode, the engine sh ut s off au-
tomat ica lly when the vehicle is stoppe d, such as
at a t raff ic light. The ignition remains switched
on d ur ing this stop phase. The eng ine will be a u-
tomat ically restarted when needed.
The last Start-Stop -System setting (on/off usin g
the button
1 0~ 1 )
will be restored when the ign i-
t ion is turned on. The LED in the
1 0'"1
button turns
on when the Start-Stop-System
is switched off
manua lly.
Basic requirements for the Start-Stop mode
- The d river 's door is closed.
- The d river 's sea t belt is lat ched.
- The hood is closed.
- The vehicle must have bee n d riven fast e r t han
2.5 mph (4 km/h) s ince the last st op.
- A t railer is not hitched t o t he vehicle .
.,.
91
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