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Starting off with a trailer
To prevent rolling back unintentionally on an in-
cline, do the following:
11-Keep the sw itch<®) pulled and depress the ac-
celerator. The parking brake stays applied and
prevents the vehicle from rolling backward .
11-You can release the switch© once you are su re
that you a re deve loping enough forwa rd mo-
mentum at the whee ls as you depress the ac-
celerator .
Depending on the weight of the rig (vehicle and
trailer) and the seve rity of t he incline, you may
roll backwards as you start. You can prevent roll-
ing backwards by holding the parking brake
switch C®> pulled out and accelerating - just as
you would when starting on a hill with a conven-
tional hand brake.
Emergency braking
In the event that the conventional brake system
fails or locks.
11-In an emergency, pull the sw itch<®) and contin-
ue to pull it to s low your vehicle down with the
parking brake.
11-As soon as you release the switch © or acceler-
ate, the brak ing process stops.
If you pull the switch<®> and hold it above a
speed of about 5 mph (8 km/h), the emergency
braking function is initiated. The vehicle is braked
at all four wheels by activating the hydrau lic
brake system . The brake performance is sim ilar
to making an emergency stop ¢ ,& .
In order not to activate the emergency brak ing by
mistake, an audib le warning tone (bu zzer)
sounds when the sw itch(®) is pu lled . As soon as
the sw itch(®) is released, or the accelerator pedal
is depressed, emergency braking stops .
A WARNING
Emergency bra king should only be used in an
emergency, when the normal foot brake has
fai led or the bra ke pedal is obstructed. Using
t he parking brake to perform emergency
braking will slow your vehicle down as if you
D r iving
had made a full brake applicat ion . The laws of
physics cannot be suspended even with ESC
and its associated components (ABS, ASR,
EDL). In corners and when road or weather
conditions are bad, a full brake application
can cause the vehicle to skid or the rear end to
break away - risking an accident.
Start/Stop system
Description
Applies to: vehicles with Start-Stop-System
The Start-Stop -System can help increase fuel
economy and reduce CO2 emissions.
In the Start-Stop-mode, the engine shuts off au-
tomatica lly when the vehicle is stopped, such as
at a traffic light . The ign ition remains switched
on during this stop phase. The eng ine will be au-
tomat ically restarted when needed.
The last Start-Stop-System setting (on/off using
the button
10-I) will be restored when the igni-
t ion is turned on. The LED in the
10~1 button turns
on when the Start-Stop-System is switched off
manually .
Basic requirements for the Start-Stop mode
- The driver's door is closed.
- The driver' sea t belt is latched .
- The hood is closed.
- The vehicle must have bee n d riven faster t han
2.5 mph (4 km/h) since the last stop.
- A trailer is not hitched to t he vehicle .
A WARNING
-
- Never let the vehicle roll with the engine
switched off. You could lose contro l over the
veh icle . This can lead to a collision and seri-
ous injuries .
- The brake booster and the steer ing support
do not work while the engine is switched
off . More force is required to stop and to
steer the vehicle.
- To reduce the risk of injur ies, ma ke sure that
the Sta rt-Stop-System is turned off when
working in the engine compartment
¢page 87.
85
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