Braking and parking
Disconnecting the electronic parking
br
ak
e
●
Switch the ignition on.
●
Press the button
›››
Fig. 230. At the
same time step hard on the brake pedal or, if
the engine is running, press the accelerator
pedal slightly.
●
The control lamp of button
›››
Fig. 230 (ar-
row) and the red control lamp on the in-
strument panel go out.
Automatic release of the electronic park-
ing brake upon moving off
The electronic parking brake is automatically
switched off when starting if, after the driv-
er's door is closed and the driver's seat belt
fastened, any of the following situations take
place:
●
A gear range is engaged or switched to an-
other one and the accelerator pedal is lightly
pressed.
●
To facilitate certain manoeuvres there are
exceptions that allow the automatic parking
brake to be released without the driver's seat
belt being fastened.
The parking brake can be prevented from
being automatically released by continuously
pulling up the
›››
Fig. 230 switch when
starting off.
The electronic parking brake is not discon-
nected until the button is released. This
can facilitate starting off when a heavy load is
towed
›››
page 303.
Automatic activation of the electronic
parking brake when exiting the vehicle in-
correctly
In vehicles with automatic transmission, the
electronic parking brake is activated auto-
matically when exiting the vehicle incorrectly
if:
●
The selector lever is in the D/S or R posi-
tion or in the Tiptronic selector gate.
●
AND: the vehicle is stationary.
●
AND: the driver door is open.
Emergency brake function
Only use the emergency brake function if
you are unable to stop the vehicle with the
foot brake
›››
.
●
Pull and hold the
›
›
›
Fig. 230 button in
this position to forcefully stop the vehicle. At
the same time, an acoustic warning can be
heard.
●
To stop the braking process, release the
button or press the accelerator.
WARNING
The improper use of the electronic parking
brake can cause accidents and serious in-
jury.
●
Never use the electronic parking brake to
stop the vehicle, unless it is an emergency.
Braking distances can be considerably lon-
ger, since, under certain circumstances,
only the rear wheels brake. Always use the
foot brake.
●
Never accelerate from the engine when a
gear range or a gear is engaged and the en-
gine is running. The vehicle could move,
even if the electronic parking brake is acti-
vated.
CAUTION
To prevent the vehicle from unintentionally
moving when parking it, first apply the
electronic parking brake and then remove
your foot from the brake pedal.
Note
●
If the vehicle battery is flat, it will not be
possible to disconnect the electronic park-
ing brake. Use the jump-start
›››
page 46.
●
When the electronic parking brake is ap-
plied or released, noises may be heard.
●
The system performs automatic and au-
dible tests sporadically in the parked vehi-
cle if some time elapses without the elec-
tronic parking brake being used.
277
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