ECO symbol. This means that the engine is
operating with four cylinders.
If cylinder shut-off is not active, the engine
will operate with all eight cylinders. In this
case,8, the number of active cylinders, is
shown in the èECO symbol.
Automatic engine switch-off
All vehicles (except Mercedes-AMG vehi-
cles)
If the vehicle is braked to a standstill in Dor N,
the ECO start/stop function switches off the
engine automatically.
The ECO start/stop function is operational
when:
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 temper-
ature.
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.
iAll of the vehicle's systems remain active
when the engine is stopped automatically.
iAutomatic engine switch-off can take
place a maximum of four times in a row
(initial stop, then three subsequent stops)..
iThe HOLD function can be activated if the
engine has been switched off automati-
cally. It is then not necessary to continue
applying the brakes during the automatic
stop phase. When you depress the accel-
erator pedal, the engine starts automati-
cally and the braking effe
ct of the HOLD
function is deactivated. Mercedes-AMG vehicles
If the vehicle is braked to a standstill in
Dor N,
the ECO start/stop function switches off the
engine automatically.
The ECO start/stop function is operational
and the èECO symbol 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 temper-
ature.
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 the conditions for automatic engine switch-
off are not all fulfilled, the èECO symbol is
lit yellow.
iAll of the vehicle's systems remain active
when the engine is stopped automatically.
iThe engine can be automatically switched
off an unlimited number of times.
iThe HOLD function can be activated if the
engine has been switched off automati-
cally. It is then not neces
sary to continue
applying the brakes during the automatic
stop phase. When you depress the accel-
erator pedal, the engine starts automati-
cally and the braking effect of the HOLD
function is deactivated.
144Driving
Dr iving an d parking
Automa tic engine start
Allvehicles (excep tMercedes-AM G vehi-
cles)
The engin estart sautomatically if:
Ryou switch off th eECO start/sto pfunction
by pressing th eECO butto n
Rin transmission position Dor Nthebrak e
pedal is release dand th eHOLD function is
no tactive
Ryou depress th eaccelerato rpedal
Ryou engage revers egear R
Ryou mov eth etransmission out of position
P
Ryou unfasten your seat belt or open th e
driver' sdoor
Rth evehicl estart sto rol l
Rthebrak esystem require sthis
Rth etemperature in th evehicl einterior devi-
ate sfrom th eset range
Rth esystem detects moisture on th ewind-
shield when th eair-conditioning system is
switched on
Rth ebattery's condition of charge is to olow
iShifting th etransmission to position P
does no tstart th eengine.
Mercedes-AM G vehicles
The engin estart sautomatically if:
Ryou switch off th eECO start/sto pfunction
by pressing th eECO butto n
Rin transmission position Dor Nthebrak e
pedal is release dand th eHOLD function is
no tactive
Ryou depress th eaccelerato rpedal
Ryou engage revers egear R
Ryou mov eth etransmission out of position
P
Ryou switch to driv eprogram Sor M
Ryou unfasten your seat belt or open th e
d
river' sdoor
Rth evehicl estart sto rol l
Rthebrak esystem require sthis
Rth etemperature in th evehicl einterior devi-
ate sfrom th e setrange
Rthesystem detects moisture on th ewind-
shield when th eair-conditioning system is
switched on
Rth ebattery's condition of charge is to olow
iShifting th etransmission to position P
does no tstart th eengine.
iIf you shif tth etransmission from Rto D,
th eECO start/sto pfunction is available
again once th eè ECO symbol reap -
pear sin green in th emultifunction display.
Deactivating oractivating the ECO
start/stop function
All vehicles (excep tMercedes-AM G vehi-
cles)
XTo switch off:press ECO butto n:.
Indicato rlamp ;goes out .
XTo switch on: press ECO butto n:.
Indicato rlamp ;lights up.
iIf indicator lamp ;is off ,th eECO start /
stop function has been deactivated man -
ually or as th eresult of amalfunction .The
engin ewill then no tbe switched off auto -
matically when th evehicl e stops .
iThe ECO start/sto pfunction is activated
eac htime th eengin eis switched on .
Driving145
Driving and parking
Z
Mercedes-AMG vehicles
XTo switch off:in drive program C, press
ECO button :.
or
XSwitch to drive program Sor M
(
Ypage 152).
Indicator lamp ;and the èECO sym-
bol in the multifunction display go out.
XTo switch on: press ECO button :.
Indicator lamp ;lights up. If drive pro-
gram Sor Mis active, the automatic trans-
mission switches to drive program C.
If all conditions for automatic engine
switch-off (
Ypage 144) are fulfilled, the
è ECO symbol is shown in green in the
multifunction display.
If not all conditions for automatic engine
switch-off (
Ypage 144) are fulfilled, the
è ECO symbol is shown in yellow in the
multifunction display.
If this is the case, the ECO start/stop func-
tion is not available.
Conditions for the automatic engine
switch-off (
Ypage 144).
iIf indicator lamp ;is off, the ECO start/
stop function has been deactivated man-
ually or as the result of a malfunction. The
engine will then not be switched off auto-
matically when the vehicle stops.
iEach time the engine is started, the ECO
start/stop function switches to the status
(on or off) that was selected before switch- ing off the engine.
146Driving
Driving and parking
Problems with the engine
ProblemPossible causes/consequences andMSolutions
The engine does not
start.The HOLD function or DISTRONIC PLUS is activated.
XDeactivate the HOLD function (Ypage 179) or DISTRONIC
PLUS (
Ypage 170).
XTry to start the engine again.
The engine does not
start. The starter motor
can be heard.RThere is a malfunction in the engine electronics.
RThere is a malfunction in the fuel supply.
Before attempting to start the engine again:
XTurn the SmartKey back to position 0in the ignition lock.
or
XPress the Start/Stop button repeatedly until all indicator lamps in the instrument cluster go out.
XTry to start the engine again (Ypage 141). Avoid excessively
long and frequent attempts to start the engine as these will drain
the battery.
If the engine does not start after several attempts:
XConsult a qualified specialist workshop.
The engine does not
start. You cannot hear
the starter motor.The on-board voltage is too low because the battery is too weak or
discharged.
XJump-start the vehicle (Ypage 299).
If the engine does not start despite attempts to jump-start it:
XConsult a qualified specialist workshop.
The starter motor was exposed to a thermal load that was too high.
XAllow the starter motor to cool down for approximately two
minutes.
XTry to start the engine again.
If the engine still does not start:
XConsult a qualified specialist workshop.
The engine is not run-
ning smoothly and is
misfiring.There is a malfunction in the engine electronics or in a mechanical
component of the engine management system.
XOnly depress the accelerator pedal slightly.
Otherwise, non-combusted fuel may get into the catalytic con-
verter and damage it.
XHave the cause rectified immediately at a qualified specialist
workshop.
Driving147
Driving and parking
Z
mission positionDor R, park position Pis
otherwise engaged automatically.
The transmission could be damaged.
jPark position
kReverse gear
iNeutral
hDrive
The selector lever always returns to its origi-
nal position. The current transmission posi-
tion P,R, Nor Dappears in the transmission
position display in the multifunction display.
Transmission position and drive pro-
gram display
:Transmission position display
;Drive program display
The current position of the selector lever is
shown by the indicators next to the selector
lever.
The indicators light up when the SmartKey is
inserted into the ignition lock. The indicators
go out when the SmartKey is removed from
the ignition lock.
Engaging park position P (9G-TRONIC)
XWhen the vehicle is stationary, depress the
brake pedal.
XPress the Pbutton in the center console.
iPark position Pis disengaged if you:
Rdepress the brake pedal and
Rpush the selector lever forwards or back
to the first point of resistance
The transmission shifts to neutral N.
Park position Pis engaged automatically and
the electric parking brake applied:
Rif you remove the SmartKey from the igni-
tion lock
Rif you switch off the engine using the Start/
Stop button and open the driver's or front-
passenger door
Rif you open the driver's door while traveling
at low speed in transmission position Dor
R
Under certain conditions, the automatic
transmission shifts automatically to transmis-
sion position Pif the HOLD function or
DISTRONIC PLUS is activated. Observe the
information on the HOLD function
(
Ypage 180) and on DISTRONIC PLUS
(
Ypage 173).
Engaging reverse gear R (9G-TRONIC)
!Only shift the automatic transmission to R
when the vehicle is stationary.
XWhen the vehicle is stationary, depress the
brake pedal.
XPush the selector lever forwards past the
first point of resistance.
The ECO start/stop function is not available
when reverse gear is engaged. Further infor-
mation on the ECO start/stop function
(
Ypage 143).
Automatic transmission149
Driving and parking
Z
Engaging neutral N (9G-TRONIC)
XWhen the vehicle is stationary, depress the
brake pedal.
XPush the selector lever forwards or back to
the first point of resistance.
Staying in neutral N (9G-TRONIC)
GWARNING
If children are left unsupervised in the vehicle,
they could:
Ropen the doors, thus endangering other
people or road users.
Rget out and disrupt traffic.
Roperate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
Rrelease the parking brake.
Rshifting the automatic transmission out of
park position P
RStart the engine.
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 or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
Using the SmartKey:
RMake sure that the ignition is switched on.
RWhen the vehicle is stationary, depress the
brake pedal and keep it depressed.
RShift to neutral N.
RRelease the brake pedal.
RIf the electric parking brake is engaged,
release it.
RSwitch off the ignition and leave the Smart-
Key in the ignition lock.
With KEYLESS-GO:
RMake sure that the ignition is switched on.
RWhen the vehicle is stationary, depress the
brake pedal and keep it depressed.
REngage park position P.
RRelease the brake pedal.
RRemove the Start/Stop button from the
ignition lock.
RInsert the SmartKey into the ignition lock.
RSwitch on the ignition.
RDepress the brake pedal and keep it
depressed.
RShift to neutralN.
RRelease the brake pedal.
RIf the electric parking brake is engaged,
release it.
RSwitch off the ignition and leave the Smart-
Key in the ignition lock.
Engaging transmission position D (9G-
TRONIC)
XWhen the vehicle is stationary, depress the
brake pedal.
XPush the selector lever back past the first
point of resistance.
150Automatic transmission
Driving and parking
Problems with the transmission
ProblemPossible causes/consequences andMSolutions
The transmission has
problems shifting gear.The transmission is losing oil.
XHave the transmission checked at a qualified specialist work-
shop immediately.
The acceleration ability
is deteriorating.
The transmission no
longer changes gear.The transmission is in emergency mode.
7G-TRONIC:it is only possible to shift into secondgear and
reverse gear.
9G-TRONIC: it is only partly possible to engage the gears or the
transmission is in position N.
XStop the vehicle.
XShift the transmission to position P.
XSwitch off the engine.
XWait at least ten seconds before restarting the engine.
XShift the transmission to positionDor R.
7G-TRONIC: IfD is selected, the transmission shifts into sec-
ond gear, if Ris selected, the transmission shifts into reverse
gear.
XHave the transmission checked at a qualified specialist work-
shop immediately.
Deactivating the parking lock man-
ually (7G-TRONIC)
!
Do not use any sharp-edged objects to
remove the selector lever gaiter from the
center console. This could damage the
selector lever gaiter.
XApply the electric parking brake.
XPress the frame of selector level gaiter :
together somewhat on the side edge at the
back and hold with one hand ;.
XWith the other hand, pry off the frame of
selector level gaiter:with a flat, blunt
object (e.g. a screwdriver wrapped in cloth) at rear edge =, pulling it up and out at the
same time.
XPress release button ?down and simul-
taneously move the selector lever out of
position P.
The selector lever can now be moved freely
until it is returned to position P.
In the event of an electrical malfunction, it is
possible to release the selector lever lock
manually to move it out of position P. This is
the case, for example, if you wish to tow the
vehicle away.
Automatic transmission157
Driving and parking
Z
To ensure that the vehicle is secured against
rolling away unintentionally:
Rthe electric parking brake must be applied.
Rthe transmission must be in positionPand
the transmission position display must
show Pin the multifunction display.
Rthe SmartKey must be removed from the
ignition lock.
Rthe front wheels must be turned towards
the curb on steep uphill or downhill gradi-
ents.
Switching off the engine
Important safety notes
GWARNING
The automatic transmission switches to neu-
tral position Nwhen you switch off the engine.
The vehicle may roll away. There is a risk of an
accident.
After switching off the engine, always switch
to parking position P. Prevent the parked vehi-
cle from rolling away by applying the parking
brake.
Vehicles with automatic transmission
XApply the electric parking brake.
XShift the transmission to position P.
XWith the SmartKey:turn the SmartKey to
position 0in the ignition lock and remove it.
The immobilizer is activated.
7G-TRONIC: the key can only be removed if
the transmission is in position P.
XWith KEYLESS-GO:press the KEYLESS-
GO Start/Stop button (
Ypage 140).
The engine stops and all the indicator
lamps in the instrument cluster go out.
When the driver's door is closed, this cor-
responds to key position 1. When the driv-
er's door is open, this corresponds to
SmartKey position 0: "SmartKey removed". If you try to switch off the engine when the
transmission is not in position
P, a message
appears in the multifunction display. A signal
sounds.
Electric parking brake
General notes
GWARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example:
Rrelease the parking brake.
Rshift the automatic transmission out of the
parking position P.
Rstart the engine.
In addition, they may operate vehicle equip-
ment 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.
The function of the electric parking brake is
dependent on the on-board voltage. If the on-
board voltage is low or there is a malfunction
in the system, it may not be possible to apply
the released parking brake.
XIf this is the case, only park the vehicle on
level ground and secure it to prevent it roll-
ing away.
XShift the automatic transmission to posi-
tion P.
It may not be possible to release an applied
parking brake if the on-board voltage is low or
there is a malfunction in the system. Contact a qualified specialist workshop.
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.
Parking161
Driving and parking
Z