Mercedes-Benz A Series 2015 Owner's Manual page 189

Parking
186
The function of the electric parking brake is
dependent on the on-board voltage. If the on-
board voltage is low or if there is a malfunc-
tion in the system, it may not be possible to
apply the released parking brake.
If this is the case, only park the vehicle on
X
level ground and secure it to prevent it from
rolling away.
Vehicles with automatic transmission:
X
shift the automatic transmission to posi-
tion P.
Vehicles with manual transmission:
X
engage first gear.
It may not be possible to release an applied
parking brake if the on-board voltage is low or
if there is a malfunction in the system. Con-
tact a qualified specialist workshop.
The electric parking brake carries out a func-
tion check at regular intervals when the
engine is switched off. Noises that occur are
normal.
Applying or releasing manually
To apply: push handle :.
X
When the electric parking brake is applied,
the ! red indicator lamp lights up in the
instrument cluster.
The electric parking brake can also be
applied when the key is removed.
To release: pull handle :.
X
The red ! indicator lamp in the instru-
ment cluster goes out.
The electric parking brake can only be
released:
when the key is in position 1 or 2 in the
R
ignition lock ( page 157) or
Y
if the ignition was switched on using the
R
Start/Stop button
Applying automatically (vehicles with
automatic transmission)
The electric parking brake is automatically
applied when the transmission is in position P
and:
the engine is switched off or
R
the driver is not wearing a seat belt and the
R
driver's door is opened
To prevent the electric parking brake from
being automatically applied, pull handle :.
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 keeping the vehicle
R
stationary
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 period
R
The red ! indicator lamp in the instrument
cluster lights up.
The electric parking brake is not automati-
cally applied if the engine is switched off by
the ECO start/stop function.
Applying automatically (vehicles with
manual transmission)
When the vehicle's HOLD function is holding
the vehicle at a standstill, the electric parking
brake is applied automatically.