With a stationary vehicle
Pull the switch.
The LED lights up.
The indicator light lights up red. The
parking brake is set.
Depending on the stopping situation, the park‐
ing brake is engaged automatically.
Steptronic transmission: in some parking sit‐
uations, the parking brake is automatically en‐
gaged, when selector lever position P is en‐
gaged. In these cases, the parking brake is
released automatically when you leave the se‐
lector lever position P.
To use as emergency brake while driving:
Pull the switch and hold it. The vehicle brakes
hard while the switch is being pulled.
The indicator light lights up red, a sig‐
nal sounds and the brake lights light
A Check Control message is displayed.
If the vehicle is decelerated to a complete stop,
the parking brake is engaged.
With the ignition switched on:
Steptronic transmission: press the
switch while the brake is pressed or se‐
lector lever position P is set.
The LED and indicator light go out.
The parking brake is released.
Automatic release in cars with
For automatic release, step on the accelerator
The LED and indicator lamp go out.
The parking brake is automatically released
when you step on the accelerator under the
▷ Engine on.
▷ Drive mode engaged.
▷ Driver buckled in and doors closed.
In the event of a failure or malfunction of the
parking brake, secure the vehicle against roll‐
ing using a wheel chock, e.g., when leaving it.
After a power failure
Putting the parking brake into
Switch on the ignition.
Press the switch while stepping on
the brake pedal or selector lever position P
It may take several seconds for the brake to be
put into operation. Any sounds associated with
this are normal.
The indicator light in the instrument
cluster goes out as soon as the parking
brake is ready for operation.
Turn signal, high beams,
Turn signal in exterior mirror
When driving and during operation of the turn
signals or hazard warning system, do not fold
Online Edition for Part no. 01 40 2 974 556 - X/16