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Driving
Automatically engaging and disengaging
the Aut
o Hold function
If the Auto Hold function was switched on with
the button before switching off the ignition,
the function will remain on the next time the
ignition is switched on.
If the Auto Hold function was not switched on,
it will automatically remain off next time the
ignition is engaged.
The Auto Hold function connects automat-
ically if the following conditions are met
(all points must be met at the same time
›››
):
The v
ehicle is kept stationary with the
brake pedal on a flat surface or on a
slope.
The engine rotates “correctly”.
The Auto Hold function is automatically
turned off if the following conditions are
met:
If any of the conditions mentioned on
›››
page 261, Conditions for keeping
the vehicle stationary with the Au-
to Hold function are no longer met.
If the engine is running irregularly or an
anomaly is detected.
If the engine is turned off or stalls.
Manual gearbox: The clutch and the ac-
celerator are pressed at the same time.
1.
2.
1.
2.
3.
4.
Automatic gearbox: If the accelerator is
pressed
Automatic gearbox: If any of the tyres
has only minimal contact with the
ground, e.g. in the case of axle articula-
tion.
WARNING
The smart technology incorporated into
the Aut
o Hold function cannot defy the
laws of physics; it only works within the lim-
its of the system. The greater convenience
provided by the Auto Hold function should
never tempt you to take any risk that may
compromise safety.
●
Never leave the vehicle running and with
the Auto Hold function switched on.
●
The Auto Hold function cannot always
keep the vehicle stationary uphill or down-
hill or stop it sufficiently, for example, on
slippery or frozen surfaces.
Note
Before entering a car wash, always switch
off the Aut
o Hold function, because if the
electronic parking brake is automatically
connected, it may cause damage.
5.
Stabilisation and brake as-
sist
ance systems
Control lamps
It lights up
Fault in the ESC or ABS, or disconnection caused by
the system.
The ESC works in combination with the ABS. If the
ABS fails, the lamp also lights up.
Flashes
ESC or ASR activated.
It lights up
ASR switched off manually.
Or: ESC in Sport mode
›››
page 264.
It lights up
ABS faulty or does not work.
WARNING
When the ignition is switched on, the status
of the br
ake system and the brake assist
functions is automatically checked. The
control lights on the instrument cluster
light up briefly and then turn off again. If a
warning light stays on permanently, there
262
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