Rthe electric parking brake is applied.
RESP®is malfunctioning.
Furtherinformation on holding the vehicle
stationary on uphill gradients (Ypage 145).
ECO start/stopfunction
Introduction
The ECO start/stop function switches the
engine off automatically if the vehicle is
stopped undercertain conditions.
The engine starts automatically when the
driver wants to pull away again. The ECO
start/stop function thereby helps you to
reduce the fuel consumption and emissions
of your vehicle.
Important safety notes
GWARNING
If the engine is switchedoff automatically and
you exit the vehicle, the engine is restarted
automatically.The vehicle may begin moving.
There is a risk of accident and injury.
If you wish to exit the vehicle, always turn off
the ignition and secure the vehicle against
rolling away.
General notes
ECO start/stop display
If the \rsymbol is shown in green in the
multifunction display, the ECO start/stop
function switches the engine off
automatically if the vehicle stops moving.
The stop/start function is automatically
activated each time you start the engine with
the SmartKey.
If the ECO start/stop function has been
manually deactivated (Ypage 140) or a
malfunction has caused the system to be
deactivated, the \rsymbol is not
displayed.
AMG vehicles:the ECO start/stop function
is only available in drive programC.
Automatic engine switch-off
General notes
The ECO start/stop function is operational
and the \rsymbol is displayed in green in
the multifunction display, if:
Rthe indicator lamp in the ECO button is lit
green.
Rthe outside temperature is within the range
that is suitable for the system.
Rthe engine is at normal operating
temperature.
Rthe set temperature for the vehicle interior
has been reached.
Rthe battery is sufficiently charged.
Rthe system detects that the windshield is
not fogged up when the air-conditioning
system is switched on.
Rthe hood is closed.
Rthe driver's door is closed and the driver's
seat belt is fastened.
If not all conditions for automatic engine
switch-off are fulfilled, the \rsymbol is
shown in yellow.
iAll of the vehicle's systems remain active
when the engine has been stopped
automatically.
iThe engine can be switched off
automatically a maximum of four times
(first stop and three subsequent stops) in
succession. The \rsymbol is shown in
yellow in the multifunction display after the
engine has been started automatically for
the fourth time. When the \rsymbol is
shown in green in the multifunction display,
Driving139
Driving and parking
Z
automatic engine switch-off is again
possible.
Vehicles with automatic transmission
If the vehicle is braked to a standstill inDor
N, the ECO start/stop function switches off
the engine automatically.
iThe HOLD function can be activated if the
engine has been switched off
automatically. It is then not necessary to
continue applying the brakes during the
automatic stop phase.When you depress
the accelerator pedal, the engine starts
automatically and the braking effect of the
HOLD function is deactivated.
Automatic engine start
General notes
The engine starts automatically if:
Ryou switch off the ECO start/stop function
by pressing the ECO button.
Ryou engage reverse gearR.
Rthe vehicle starts to roll.
Rthe brake system requires this.
Rthe temperature in the vehicle interior
deviates from the set range.
Rthe system detects moisture on the
windshield when the air-conditioning
system is switched on.
Rthe condition of charge of the battery is too
low.
Rthe driver's seat belt is removed or the
driver's door is opened.
Vehicles with automatic transmission
The engine is started automatically if you:
Rrelease the brake pedal when HOLD is not
activated and the transmission is in
positionDorN.
Rdepress the accelerator pedal.
Rmove the transmission out of positionP.
iShifting the transmission to positionP
does not start the engine.
iIf you shift the transmission fromRtoD,
the ECO start/stop function is available
again once the \rsymbol reappears in
green in the multifunction display.
Deactivating/activating the ECO start/
stop function
ECO button
XTo switch off:press button .
Indicator lamp and the \rsymbol in
the multifunction display go out.
XTo switch on:press button .
Indicator lamp lights up.
If all conditions for automatic engine
switch-off (Ypage 139) are fulfilled, the
\rsymbol is shown in green in the
multifunction display.
If not all conditions for automatic engine
switch-off (Ypage 139) are fulfilled, the
\rsymbol is shown in yellow in the
multifunction display. If this is the case, the
ECO start/stop function is not available.
iIf indicator lamp is off, the ECO start/
stop function has been deactivated
manually or as the result of a malfunction.
The engine will then not be switched off
automatically when the vehicle stops.
140Driving
Driving and parking
In addition, they may operate vehicle
equipment and become trapped.There is a
risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
iThe electric parking brake performs a
function test at regular intervals while the
engine is switched off. The sounds that can
be heard while this is occurring are normal.
Applying/releasing manually
Applying
XPush handle .
When the electric parking brake is applied,
the (USA only) or (Canada only)
red indicator lamp lights up in the
instrument cluster.
iThe electric parking brake can also be
applied when the SmartKey is removed.
Releasing
XPull handle .
The red (USA only) or (Canada
only) indicator lamp in the instrument
cluster goes out.
iYou can only release the electric parking
brake when the SmartKey is in position1
or2in the ignition lock.
Applying automatically
The electric parking brake is applied
automatically:
Rif DISTRONIC PLUS brings the vehicle to a
standstill or
Rif the HOLD function is keeping the vehicle
stationary or
Rif Active Parking Assist is holding the
vehicle at a standstill
In addition, at least one of the following
conditions must be fulfilled:
Rthe engine is switched off.
Rthe driver's door is open and the seat belt
is not fastened.
Rthere is a system malfunction.
Rthe power supply is insufficient.
Rthe vehicle is stationary for a lengthy
period.
The red (USA only) or (Canada
only) indicator lamp in the instrumentcluster
lights up.
iThe electric parking brake is not
automatically engaged if the engine is
switched off by the ECO start/stop
function.
Releasing automatically
Your vehicle's electric parking brake is
automatically released if all of the following
conditions are met:
Rthe engine is running.
Rthe transmission is in positionDorR.
Rthe seat belt has been fastened.
Ryou depress the accelerator pedal.
If the transmission is in positionR, the tailgate
must be closed.
Parking155
Driving and parking
Z
If yourseat belt is not fastened, the following
conditions must be fulfilled to automatically
release the electric parkingbrake:
Rthe driver's door is closed.
Ryou have shifted out of transmission
positionPor you have previously driven
faster than 2 mph (3 km/h).
Emergency braking
The vehicle can also be braked during an
emergency by using the electric parking
brake.
XWhile driving, push handle of the electric
parking brake (Ypage 154).
iThe vehicle is braked for as long as
handle of the electric parking brake is
pressed. The longer electric parking brake
handle is depressed, the greater the
braking force.
During braking:
Ra warning tone sounds
RtheRelease Park. Brakemessage
appears
Rthe red (USA only) or (Canada
only) indicator lamp in the instrument
cluster flashes
When the vehicle has been braked to a
standstill, the electric parking brake is
engaged.
Parking the vehicle foralong period
If you leave the vehicle parked for longer than
four weeks, the battery may be damaged by
exhaustive discharging.
If you leave the vehicle parked for longer than
six weeks, the vehicle may suffer damage as
a result of lack of use.
XVisit a qualified specialist workshop and
seek advice.
iYou can obtain information about trickle
chargers from a qualified specialist
workshop.
Driving tips
General notes
Important safety notes
GWARNING
If you switch off the ignitionwhile driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect,
for example, the power steering and the brake
boosting effect.You will require considerably
more effort to steer and brake. There is a risk
of an accident.
Do not switch off the ignition while driving.
GWARNING
If you operate mobile communication
equipment while driving, you will be
distracted from traffic conditions. You could
also lose control of the vehicle. There is a risk
of an accident.
Only operate this equipment when the vehicle
is stationary.
Observe the legal requirements for the
country in which you are driving. Some
jurisdictions prohibit the driver from using a
mobile phone while driving a vehicle.
If you make a call while driving, always use
hands-free mode. Only operate the telephone
when the traffic situation permits. If you are
unsure, pull over to a safe location and stop
before operating the telephone.
Bear in mind that at a speed of only 30 mph
(approximately 50 km/h), the vehicle covers
a distance of 44 ft (approximately 14 m) per
second.
156Driving tips
Driving and parking