
sufficient room for the pedals. Do not use
loose floormats and do not place several floor- mats on top of one another. G
WARNING
Unsuitable footwear can hinder correct usage of the pedals, e.g.:
R shoes with thick soles
R shoes with high heels
R slippers
There is arisk of an accident.
Wear suitable footwear to ensure correct
usage of the pedals. G
WARNING
If you switch off the ignition while 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 arisk
of an accident.
Do not switch off the ignition while driving. G
WARNING
If the parking brake has not been fully
released when driving, the parking brake can:
R overheat and cause afire
R lose its hold function.
There is arisk of fire and an accident. Release
the parking brake fully before driving off.
! Do not warm up the engine when the vehi-
cle is stationary. Drive off immediately.
Avoid high engine speeds and driving at full throttle until the engine has reached its
operating temperature.
Only shift the automatic transmission to
the desired drive position when the vehicle is stationary.
Where possible,a void spinning the drive
wheels when pulling awayons lippery
roads. You could otherwise damage the
drive train. !
AMG vehicles:
at low engine oil temper-
atures (below +20 †), the maximum
engine speed is restricted in order to pro-
tect the engine. To protect the engine and
maintain smooth engine operation, avoid
driving at full throttle when the engine is
cold.
HYBRID vehicles :make sure that you read
the "HYBRID" Supplement included in the
vehicle literature. Otherwise, you may not
recognise dangers. Key positions
Key g
To remove the key
1 Power supplyf or some consumers, such
as the windscreen wipers
2 Ignition (power supplyf or all consumers)
and drive position
3 To start the vehicle
i If the key does not belong to the vehicle, it
can still be turned in the ignition lock. How-
ever, the ignition will not be switched on.
The engine cannot be started.
KEYLESS-GO General notes
Vehicles with KEYLESS-GO are equipped with
keys featuring an integrated KEYLESS-GO
function and adetachable Start/Stop button. Driving
179Driving and parking Z

The Start/Stop button must be inserted in the
ignition lock and the key must be in the vehi-
cle.
When you insert the Start/Stop button into
the ignition lock, the system needs approx-
imately two seconds recognition time. You
can then use the Start/Stop button.
Pressing the Start/Stop button several times
in succession corresponds to the different
key positions in the ignition lock. This is only
the case if you are not depressing the brake
pedal.
If you depress the brake pedal and press the
Start/Stop button ,the engine start simmedi-
ately.
Ac heck which periodically establishes aradio
connection between the vehicle and the key
determines whether avalid key is in the vehi-
cle. This occurs, for example, when starting
the engine.
To start the vehicle without actively using the
key:
R the Start/Stop button must be inserted in
the ignition lock
R the key must be in the vehicle
R the vehicle must not be locked with the key
or KEYLESS-GO (Y page 95)
Do not keep the KEYLESS-GO key:
R with electronic devices, e.g. amobile
phone or another key
R with metallic objects, e.g. coins or metal
film
R inside metallic objects, e.g. ametal case
This can affect the functionality of KEYLESS-
GO.
If you lock the vehicle with the key's remote
control or with KEYLESS-GO, after ashort
time:
R you will not be able to switch on the ignition
with the Start/Stop button
R you will not be able to start the engine with
the Start/Stop button until the vehicle is
unlocked again If you lock the vehicle centrally using the but-
ton on the frontd oor (Ypage 101), you can
continue to start the engine with the Start/
Stop button.
The engine can be switched off while the vehi-
cle is in motion by pressing and holding the
Start/Stop button for three seconds. This
function operates independently of the ECO
start/stop automatic engine switch-off func-
tion.
Key positions with KEYLESS-GO :
Start/Stop button
; Ignition lock
When you switch on the ignition ,all of the
indicator lamps in the instrument cluster light up. Further information on situations where
an indicator lamp either fails to go out after
starting the engine or lights up while driving
(Y page 330).
If Start/Stop button :has not yet been
pressed, this corresponds to the key being
removed from the ignition.
X To switch on the power supply: press
Start/Stop button :once.
The power supply is switched on. You can
now activat ethe windscreen wipers, for
example.
The power supply is switched off again if:
R the driver's door is opened and
R you press Start/Stop button :twice when
in this position 180
DrivingDriving and parking

X
To switc honthe ignition: press Start/
Stop button :twice.
The ignition is switched on.
The ignition is switched off if:
R the driver's door is opene dand
R yo up ress Start/Stop button :twice when
in thi sposit ion
Removing the Start/Sto pbutton
Yo uc an remove the Start/Stop button from
the ignition lock and start the vehicl easnor-
ma lusing the key.
It is onl ypossibl etos witch between Start/
Stop button mod eand key operatio nwhen
the transmission is in position P.
X Remov eStart/Stop button :from ignition
lock ;.
Yo udon ot have to remove the Start/Stop
button from the ignition lock when yo uleave
the vehicle. Yo ushould, however, always take
the key with yo uwhenleavi ng the vehicle. As
long as the key is in the vehicle:
R the vehicl ecan be started using the Start/
Stop button
R the electrically powered equipment can be
operated Starting the vehicle
Important safety notes G
WARNING
If children ar eleftu nsupervised in the vehicle,
they could:
R open doors ,thereb yendangering othe rper-
sons or roa dusers
R ge to utand be struck by oncoming traffic
R operate vehicl eequipment and become
trapped ,for example In addition, the children could also set the
vehicl
einm otion, for example, if they:
R release the parking brake
R shift the automatic transmission ou tofpark
positio nPors hift manua ltransmission into
neutral
R start the engine
There is ariskofana ccident and injury.
Whe nleavi ng the vehicle, always take the key
with yo uand lock the vehicle. Never leave
children and animals unattended in the vehi-
cle .Keept he key soutof the reach of children. G
WARNING
Combustion engine semitp oiso nousexhaust
gases such as carbo nmonoxide. Inhaling
thes eexhaust gases lead stopoisoning. There
is ar iskoff atal injury .Therefore neve rleave
the engine running in enclose dspaces with-
ou tsufficient ventilation. G
WARNING
Flammabl ematerial sintroduced through
environmenta linfluence or by animals can
ignite if in contact with the exhaust system or parts of the engine tha theatu p.There is arisk
of fire.
Carry ou tregular checks to make sure that
ther eareno flammabl eforeig nmaterial sin
the engine compartment or in the exhaust
system.
! Do not depress the accelerator when
starting the engine.
General notes i
Vehicles with
apetro lengine: the cat-
alyti cconverter is preheated for up to
30 second safter acold start. The sound of
the engine may change during this time. Driving
181Driving and parking Z

Manual transmission
X
Depress the brake peda land keep it
depressed.
X Full ydepress the clutch pedal.
X Shift to neutral N.
Automatic transmission X
Shift the transmission to position P.
The transmission position indicator in the
multifunction display shows P.
i You can start the engine in transmission
position Pand N.
Starting procedure with the key i
To start the engine using the key instead
of KEYLESS-GO, pullt he Start/Stop button
out of the ignitio nlock.
X Vehicles with diese lengine: turn the key
to position 2in the ignitio nlock
(Y page1 79).
The % preglow indicator lampint he
instrument cluster lights up.
X Turn the key to position 3in the ignition
lock and release it as soon as the engine is running (Y page179).
i Vehicles with
adiesele ngine: you can
start the engine without preglow if the
engine is warm.
Using KEYLESS-GO to start the engine i
The Start/Stop button can be usedto
start the vehicl emanually without inserting
the key into the ignitio nlock. The key must
be in the vehicl eand the Start/Stop button
must be inserted in the ignitio nlock. This
mode for starting the engine operates inde- pendently of the ECO start/stop automatic engine start function. X
Depress the brake peda land keep it
depressed.
X Press the Start/Stop button once
(Y page1 79).
Vehicles with apetrol engine: the engine
starts.
Vehicles with adiesele ngine: preglow is
activated and the engine starts. Pulling away
General notes G
WARNING
Vehicles with automatic transmission:
If the engine spee disabove the engine idling
spee dand you then engag etransmission
position Dor R,t he vehicl emay accelerate
suddenly .There is arisk of an accident.
When engaging transmission position Dor R,
alwaysk eep the brake peda lfirmly depressed
and do not depress the accelerator peda lat
the same time.
! Vehicles with manual transmission:
change gearing ood time and avoi dspin-
ning the wheels. You coul dotherwise dam-
age the vehicle.
! If
aw arning tone sound sand the
Release park. brake Release park. brake message appears
in the multifunction display,t he parking
brake is still applied. Releaset he parking
brake.
Depress the accelerator carefully when pull-
ing away.
The vehicl elocks centrall yonce you have
pulled away.T he locking knobs in the doors
drop down.
You can open the doors from the insid eatany
time.
You can alsod eactivate the automatic locking
feature (Y page293).
Vehicles with automatic transmission: it
is only possible to shift the transmission from 182
DrivingDriving and parking

position
Pto the desired position if you
depress the brake pedal. If you do not
depress the brake pedal, the DIRECT SELECT
lever can still be moved but the parkin glock
remains engaged.
i Vehicles with automatic transmis-
sion: upshifts tak eplace at higher engine
speeds after acold start .This helps the
catalytic converter to reach its operating
temperature more quickly.
Hill start assist Hill start assist helps you when pulling away
forwards or in reverse on an uphill gradient .It
holds the vehicle for ashort time after you
have removed your foot from the brake pedal.
This gives you enough time to move your foot from the brake pedal to the accelerator pedal and depress it before the vehicle begins to
roll. G
WARNING
After ashort time, hill start assist will no lon-
ger brake your vehicle and it could roll away.
There is arisk of an acciden tand injury.
Therefore, quickly move your foot from the
brake pedal to the accelerator pedal. Never
leave the vehicle when it is held by hill start
assist.
Hill start assist is not activ eif:
R you are pulling away on alevel road or a
downhill gradient
R on vehicles with automatic transmission,
the transmission is in position N
R the parkin gbrake is applied
R ESP ®
is malfunctioning ECO start/stop function
Introduction The ECO start/stop function switches the
engin eoff automatically if the vehicle is stop-
ped under certain conditions. When pulling away again, the engin
estarts
automatically. The ECO start/stop function
thereby helps you to reduce the fuel con-
sumption and emission sofyour vehicle.
Importan tsafet ynotes G
WARNING
If the engin eisswitched off automatically and
you exit the vehicle, the engin eisrestarted
automatically. The vehicle may begin moving. There is arisk of acciden tand 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
Hybrid vehicles: observe the notes on the
ECO start/stop function in the "HYBRID "Sup-
plement.
The ECO start/stop function is activated
whenever you start the engin eusing the key
or the Start/Stop button.
If the ¤ symbol is shown in green in the
multifunction display, the ECO start/stop
function switches the engin eoff automati-
cally if the vehicle stops moving.
If the ECO start/stop function has been man- ually deactivated (Y page 185) oramalfunc-
tion has caused the system to be deactivated, the ¤ symbol is not displayed.
AMG vehicles: theStop/Start active Stop/Start active or
Stop/Start inactive
Stop/Start inactive message in the AMG
menu in the multifunction display goes out.
AMG vehicles: the ECO start/stop function
is only available in drive program C. Driving
183Driving and parking Z

Problems with the engine
Problem
Possible causes/consequences and
M
MSolutions The engine does not
start. The HOLD function or DISTRONIC PLUS is activated.
X Deactivat ethe HOLD function (Y page 228) or DISTRONIC
PLUS (Y page 224).
X Try to start the engine again. The engine does not
start. The starter motor
can be heard. R
There is amalfunction in the engine electronics.
R There is amalfunction in the fuel supply.
Before attempting to start the engine again:
X Turn the key back to position 0in the ignition lock.
or
X Press the Start/Stop button repeatedly until all indicator lamps
in the instrumen tcluster go out.
X Try to start the engine again (Y page 181). Avoid excessively
long and frequent attemptstos tart the engine, as this will drain
the battery.
If the engine does not start after several attempts: X Consult aqualified specialist workshop. The engine does not
start. The starter motor
can be heard. The
reserve fuel warning
lamp is lit and the fuel
gauge display shows 0. The fuel tank is empty.
X Refuel the vehicle. 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.
X Jump-start the vehicle (Y page 405).
If the engine does not start despite attemptstoj ump-start it:
X Consult aqualified specialist workshop. The starter motor was exposed to
athermal load that was too high.
X Allow the starter motor to cool down for approximately two
minutes.
X Try to start the engine again.
If the engine still does not start:
X Consult aqualified specialist workshop. Driving
187Driving and parking Z

Transmission position and driv
epro-
gram display !
If the transmission positio
ndisplay in the
multifunctio ndisplay is not working ,you
shoul dpulla wa ycarefull ytocheck whether
the desired transmission positio nis
engaged .Ideally ,you shoul dselect trans-
mission position Dand automatic drive pro-
gram Cor S. :
Transmission positio ndisplay
; Driv eprogra mdisplay
The current transmission positio nand drive
progra mappea rinthe multifunctio ndisplay.
In addition, displays on the trim next to the
selecto rlev er indicate the current positio nof
the selecto rlev er.
The displays light up when the key is inserted in the ignition. The displays go ou twhent he
key is remove dfromt he ignition.
Engagin gpark position P X
When the vehicl eisstationary, press but-
ton :. DIREC
TSELECT lever
Overvie woftransmission positions j
Park positio nwithp arking lock
k Reverse gear
i Neutral
h Drive
The DIRECT SELEC Tlev er is on the right of the
steering column.
The DIRECT SELEC Tlever always returns to
its original position. The current transmission position P,R,N or Dappear sinthe transmis-
sion positio ndisplay in the multifunctio ndis-
play (Y page 190).
Transmission position and driv epro-
gram display !
If the transmission positio
ndisplay in the
multifunctio ndisplay is not working ,you
shoul dpulla wa ycarefull ytocheck whether
the desired transmission positio nis
engaged .Ideally ,you shoul dselect trans-
mission position Dand drive program Eor
S.
The current transmission positio nand drive
progra mappea rinthe multifunctio ndisplay.
The arrow sinthe transmission positio ndis-
play sho whow and into which transmission
positions yo ucan change using the DIRECT
SELEC Tlever. 190
Automati
ctransmissionDriving an dparking

Children could also set th
evehicle in motion,
for example by:
R releasin gthe parking brake
R shiftin gthe automatic transmission out of
park position P
R starting th eengine.
Ther eisar iskofana ccidentand injury.
When leaving th evehicle ,always tak ethe key
wit hyou and loc kthe vehicle .Never leave
children unattende dinthevehicle .Always
keep th ekeyout of reac hofchildren.
X If th etransmission is in position Dor R:
push th eDIRECT SELECT leve rupordown
to th efirst poin tofresistance.
X If th etransmission is in position P:depress
th eb rak epedal and push th eDIRECT
SELECT leve rupordown to th efirst poin tof
resistance.
If you switch th eengineo ff wit hthe trans-
mission in position Ror D,t heautomatic
transmission shifts to Nautomatically.
Wit hthe key: if you then open th edriver's
door or th efront-pa ssenger door or remove
th ek eyfrom th eignition ,the automatic trans-
mission shifts to Pautomatically.
Wit hKEYLESS-GO: if you then open th edriv-
er' sorf ront-pa ssenger door ,the automatic
transmission shifts to P.
If you want th eautomatic transmission to
remain in neutral N,e.g.w hen havin gthe
vehicle cleane dinanautomatic car wash with
at ow ing system:
Wit hthe key:
X Switch th eignition on.
X Depres sthe brak epedal and keep it
depressed.
X Shift to neutral N.
X Release th ebrak epedal.
X Release th eparking brake.
X Switch off th eignition and leave th ekeyin
th ei gnition lock. Wit
hKEYLESS-GO:
X Remove th eStart/Sto pbutto nfromt he
ignition lock.
X Inser tthe keyintot he ignition lock.
X Switch th eignition on.
X Depres sthe brak epedal and keep it
depressed.
X Shift to neutral N.
X Release th ebrak epedal.
X Release th eparking brake.
X Switch off th eignition and leave th ekeyin
th ei gnition lock.
Engaging drive position D X
If th etransmission is in position Ror N:
push th eDIRECT SELECT leve rdown past
th ef irst poin tofresistance.
X If th etransmission is in position P:depress
th eb rak epedal and push th eDIRECT
SELECT leve rdown past th efirst poin tof
resistance. 192
Automatic transmissionDriving and parking