Mercedes-Benz S-Class Coupe 2015 Operator's Manual page 171

The electric parking brake is also engaged
automatically if:
DISTRONIC PLUS brings the vehicle to a
R
standstill or
the HOLD function is keeping the vehicle
R
stationary
Active Parking Assist is holding the vehicle
R
at a standstill
In addition, at least one of the following con-
ditions must be fulfilled:
there is a system malfunction.
R
the power supply is insufficient.
R
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.
The electric parking brake is not automati-
cally 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 automatic 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).
Ensure that you do not depress the acceler-
ator pedal unintentionally. Otherwise the
parking brake will be released and the vehicle
will start to move.
Emergency braking
The vehicle can also be braked during an
emergency by using the electric parking
brake.
While driving, push handle : of the electric
X
parking brake ( page 168).
Y
The vehicle is braked as long as you keep
handle : of the electric parking brake
pressed. The longer electric parking brake
handle : is depressed, the greater the brak-
ing force.
During braking:
a warning tone sounds
R
the Release parking brake Release parking 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 and further damaged
in the event of this occurring again.
Connect 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.
Visit a qualified specialist workshop and
X
seek advice.
Parking
169
message
Z