When the HOLD function is activated, the trans-
mission is shifted automatically to position P if:
R
the driver's seat belt is not fastened and the
driver's door is open
R
the engine is switched off, unless it is auto-
matically switched off by the ECO start/stop
function
The electric parking brake secures the vehicle
automatically if the HOLD function is activated,
the vehicle is stationary and:
R
a system fault occurs
R
the power supply is insufficient
If a malfunction occurs, then the transmission
may also be shifted into position P automati-
cally.
Vehicles with manual transmission
The electric parking brake secures the vehicle
automatically if the HOLD function is activated
and:
R
the driver's seat belt is not fastened and the
driver's door is open
R
the engine is switched off, unless it is auto-
matically switched off by the ECO start/stop
function
R
a system fault occurs
R
the power supply is insufficient
The
Brake immediately
Brake immediately
message may also
appear in the multifunction display.
X
Immediately depress the brake pedal firmly
until the warning message in the multifunc-
tion display goes out.
The HOLD function is deactivated.
A horn will sound at regular intervals if you turn
off the engine, take off your seat belt or open the
driver's door when the HOLD function is activa-
ted. The horn alerts you to the fact that the
HOLD function is still activated. If you attempt to
lock the vehicle, the tone becomes louder. The
vehicle cannot be locked until you have deacti-
vated the HOLD function.
i
Once you have switched off the engine, you
cannot restart it until you have deactivated
the HOLD function.
RACE START
Important safety notes
i
RACE START must not be used on normal
roads. RACE START must only be activated
and used on dedicated road circuits, outside
of public road use.
i
RACE START is only available in
Mercedes
‑
AMG vehicles.
RACE START enables optimum acceleration
from a standing start. For this, a suitably high-
grip road surface is required, along with the
tyres and vehicle being in good condition.
G
WARNING
If you use RACE START, individual tyres may
get into a spin and the vehicle could skid.
Depending on the selected ESP
®
mode, there
is an increased risk of skidding and having an
accident. Make sure that no persons, animals
or obstacles are within range of the vehicle.
i
Observe the safety notes on driving safety
systems (
Y
page 66).
Be sure to read the safety notes and informa-
tion on ESP
®
(
Y
page 71).
Activation conditions
You can activate RACE START if:
R
the doors are closed
R
the engine is running and it has reached an
operating temperature of approximately
71 †. This is the case when the oil tempera-
ture gauge in the multifunction display is
shown in white.
R
the drive program S, S+ or Race is selected
(
Y
page 154)
R
the steering wheel is in the straight-ahead
position
R
the vehicle is stationary and the brake pedal is
depressed (left foot)
R
the transmission is in position D
Activating RACE START
i
When manual mode (
Y
page 163) is active,
the transmission automatically shifts up to
RACE START in the drive program. This func-
tion supports maximum acceleration with
194
Driving systems
Driving
and
parking
