Mercedes-Benz 2015 M-Class Operator's Manual page 187

In addition, at least one of the following con-
ditions must be fulfilled:
the engine is switched off.
R
the driver's door is open and the seat belt is
R
not fastened.
the vehicle is stationary for a lengthy
R
period.
The red F (USA only) or ! (Canada
only) indicator lamp in the instrument cluster
lights up.
i The electric parking brake is not automat-
ically engaged if the engine is switched off
by the ECO start/stop function.
Releasing automatically
The electric parking brake is released auto-
matically when all of the following conditions
are fulfilled:
the engine is running.
R
the transmission is in position D or R.
R
the seat belt has been fastened.
R
you depress the accelerator pedal.
R
If the transmission is in position R, the trunk
lid must be closed.
If your seat belt is not fastened, the following
conditions must be fulfilled to automatically
release the electric parking brake:
the driver's door is closed.
R
you have shifted out of transmission posi-
R
tion P or you have previously driven faster
than 2 mph (3 km/h).
i
Ensure that you do not depress the accel-
erator pedal unintentionally. Otherwise the
parking brake will be released and the vehi-
cle will start to move.
Emergency braking
While driving, push handle : of the electric
X
parking brake.
The vehicle can also be braked during an
emergency by using the electric parking
brake.
i
The vehicle is braked for as long as the
handle of the electric parking brake is
pressed. The longer the electric parking
brake handle is depressed, the greater the
braking force.
During braking:
a warning tone sounds
R
the Release Park. Brake Release Park. Brake
R
appears
the red F (USA only) or ! (Canada
R
only) indicator lamp in the instrument clus-
ter flashes
When the vehicle has been braked to a stand-
still, the electric parking brake is engaged.
Parking the vehicle for a long period
If you leave the vehicle parked for longer than
four weeks, the battery may be damaged by
exhaustive discharging.
Connecting a trickle charger.
X
i
You can obtain information about trickle
chargers from a qualified specialist work-
shop.
If you leave the vehicle parked for longer than
six weeks, the vehicle may suffer damage as a
result of lack of use.
Parking
185
message
Z