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Driver assistance systems
WARNING
The brake servo and the power steering do
not work when the engine is swit
ched off.
●
Never allow the vehicle to move when the
engine is switched off.
CAUTION
Using the Start-Stop function for a long pe-
riod at very high outside temper
atures
could damage the vehicle's battery.
Note
●
In some cases, you may have to r
estart
the vehicle using the key. Observe the cor-
responding message on the instrument
panel display.
●
If the steering wheel is turned more than
270°, Stop will not function; however, the
angle of steering wheel turn does not af-
fect starting the vehicle.
Auto Hold function*
Fig. 245
Detail of centre console: Auto Hold
butt
on.
The control lamp on the button switches on
when the Aut
o Hol
d function is on.
When the Aut
o Hold function is on, this helps
the driver if they must regularly stop the vehi-
cle or if they must stop with the engine run-
ning for prolonged periods, for example, on
hills, before a traffic light or in traffic jams with
continuous stopping and starting.
The Auto Hold function automatically pre-
vents the vehicle from rolling away acciden-
tally when at a standstill, without the driver
having to keep his/her foot on the brake ped-
al.
When the system that detects that the vehi-
cle has stopped, the Auto Hold keeps the ve-
hicle at a standstill. The brake pedal can be
released.
If the driver presses the brake pedal briefly or
the accelerator to start off, the Auto Hold
function releases the brake once more. The
vehicle moves according to the gradient.
If any of the conditions necessary for the Auto
Hold function change while the vehicle stop-
ped, the system is turned off as is the indica-
tor on the button
›››
Fig. 245. The electronic
parking brake engages where necessary to
park the vehicle safely
›››
.
Conditions f
or k
eeping the v
ehicle at a
standstill with Auto Hold:
●
The driver door must be closed.
●
The driver seat belt must be buckled.
●
The engine must be running.
●
The ASR system is switched on
›››
page 238.
Automatically engaging and disengaging
the Auto Hold function
If the Auto Hold function was engaged with
the AUTO HOLD
button before disengaging
the ignition, the function will aut
omatically r
e-
main engaged aft
er the ignition is re-engag-
ed.
If the Auto Hold function was not engaged, it
will automatically remain disengaged after
the ignition is engaged.
»
261
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