
Observe the service intervals in the Service
Booklet or contact aqualified specialist
workshop for more information.
! You should have all work involving the
battery carried out at aqualified specialist
workshop. In the exceptional case that it is
necessary for you to disconnect the battery yourself, make sure that:
R you switch off the engine and remove the
key. On vehicles with KEYLESS-GO,
ensure that the ignition is switched off.
Check that all the indicator lamps in the
instrument cluster are off. Otherwise,
electronic components, such as the
alternator, may be damaged.
R you first remove the negative terminal
clamp and then the positive terminal
clamp. Never swap the terminal clamps.
Otherwise, the vehicle's electronic sys-
tem may be damaged.
R in vehicles with automatic transmission,
the transmission is locked in position P
after disconnecting the battery. The vehi-
cle is secured against rolling away. You
can then no longer move the vehicle.
The battery and the cover of the positive
terminal clamp must be fitted securely dur- ing operation.
Comply with safety precautions and take pro-
tective measures when handling batteries. WARNING
Fire, naked flames and smoking
are prohibited when handling the
battery. Avoid creating sparks.
Battery acid is caustic. Avoid con-
tact with the skin, eyes or clothing.
Wear suitablep rotective clothing,
in particularg loves, an apron and a
face mask.
Immediately rinse acid splashes
off with clean water. Consult adoc-
tor if necessary. Wear eye protection.
Keep children away.
Observe this Owner's Manual.
HYBRID vehicles: make sure that you read
the "HYBRID" Supplement included in the
vehicle literature. You could otherwise fail to
recognise dangers, e.g. due to high voltage.
For safety reasons, Mercedes-Benz recom-
mends that you only use batteries which have been tested and approved for your vehicle by
Mercedes-Benz.T hese batteries provide
increased impact protection to prevent vehi-
cle occupants from suffering acid burns
should the battery be damagedint he event of
an accident.
In order for the battery to achieve the maxi-
mum possibles ervice life, it must always be
sufficiently charged.
The vehicle battery, like other batteries, can
discharge over time if you do not use the
vehicle. In such cases, have the battery dis-
connected at aqualified specialist workshop.
You can also charge the battery with a
charger recommended by Mercedes-Benz.
For more information, pleasec ontactaquali-
fied specialist workshop.
Have the battery charge checked more fre-
quently if you use the vehicle mainly for short
trips or if you leave it standing idle for a
lengthy period. Consult aqualified specialist
workshop if you wish to leave your vehicle
parked up for along period of time.
i When you park the vehicle, remove the
key if you do not require any electrical con-
sumers. The vehicle will then use very little energy, thus conserving battery power. Battery (vehicle)
403Breakdown assistance Z

!
Only secure the tow cable or tow bar to
the towing eyes or, if available,tot he trailer
tow hitch. You could otherwise damage the
vehicle.
! Observe the following points when towing
with atow rope:
R Secure the tow rope on the same side on
both vehicles.
R Make sure that the tow rope is not longer
than legally permitted. Mark the tow rope
in the middle, e.g. with awhite cloth
(30 x30c m).This will make other road
users aware that avehicle is being
towed.
R Only secure the tow cable to the towing
eyes or, if available,tot he trailer tow
hitch.
R Observe the brake lamps of the towing
vehicle while driving. Alwaysm aintain a
distance adistance so that the tow rope
does not sag.
R Do not use steel cables or chains to tow
your vehicle. You could otherwise dam-
age the vehicle.
! Do not use the towing eye for recovery,
this could damage the vehicle. If in doubt,
recover the vehicle with acrane.
! Pull aways
moothly when towing awayor
tow-starting avehicle. If the tractive power
is too high, the vehicles could be damaged.
! To tow vehicles with KEYLESS-GO, use
the key instead of the Start/Stop button.
The automatic transmission may otherwise switch to position Pwhen you open the
driver's or front-passenger door which
could damage the transmission.
! You may tow the vehicle for
amaximum of
50km. Atowing speed of 50 km/h must not
be exceeded.
For towing distances over 50 km, the entire
vehicle must be lifted up and transported.
! If you tow or tow-start another vehicle, its
weight must not exceed the maximum per- missible gross vehicle weight of your vehi-
cle.
HYBRID vehicles :make sure that you read
the "HYBRID" Supplement included in the
vehicle literature. You could otherwise fail to
recognise dangers, e.g. due to high voltage.
Observe the legal requirements for the rele-
vant countries when towing and tow-starting.
It is better to have the vehicle transported
than to have it towed.
If the vehicle has suffered transmission dam- age, have it transported on atransporter or
trailer.
When towing awayav ehicle with an auto-
matic transmission, the transmission must be
in position N.
The battery must be connected and charged.
Otherwise, you:
R cannot turn the key to position 2in the
ignition lock
R cannot shift the transmission to position N
on vehicles with automatic transmission
In the event of damage to the electrical
system
If the battery is defective, the automatic
transmission will be locked in position P.To
shift the automatic transmission to position
N,y ou must provide power to the vehicle's
electrical system in the same way as when
jump-starting (Y page 405).
Have the vehicle transported on atransporter
or trailer.
i Deactivate the automatic locking feature
before the vehicle is towed away
(Y page 102). You could otherwise be
locked out when pushing or towing the
vehicle.
i Deactivate tow-away protection before
the vehicle is towed away( Ypage 90).408
Towing away and tow-startingBreakdown assistance

Fitting/removing th
etowing eye
Fitting th etowing eye G
WARNING
The exhaust tai lpipe may be extremely hot.
Ther eisar iskofb urning when removing the
rear cover.
Do no ttou ch th eexhaust tai lpipe. Use
extreme caution when removing th erear
cover. Towin
geye cover s(example: Saloon)
Vehicles wit hatrailer to whitch :ify ou intend
to use th evehicl efor towing, fol dout th eball
couplin gand connec tthe towbar to it
(Y page 268).
The mounting sfor th eremovable towin geyes
are locate dinthebumpers .They are under
th ec oversatt hefron tand at th erear on
vehicles without atrailer coupling. On vehi-
cle sw ithat railer coupling, th emounting is at
th ef ront under th ecover.
X Remove th etow inge ye from th evehicle
tool kit (Y page 395).
X Press th emarkonc over : inwards in the
direction of th earrow. X
Remove cover :from th eopening.
X Screw in th etow inge ye clockwise as far as
it will go and tighten it.
Removing th etowing eye X
Loosen th etow inge ye and unscrew it.
X Attac hcover : to th ebumper and press
until it engages.
X Plac ethe towin geye in th evehicl etoolkit. Towing th
evehicle awa ywith both
axles on th eground
It is important that you observ ethe safety
instruction swhen towin gaway your vehicle
(Y page 407).
The automatic transmission automatically
shifts to position Pwhen you open th edriver's
or front-passenger door or when you remove th ek eyfrom th eignition lock. In order to
ensure that th eautomatic transmission stays
in position Nwhen towin gaway th evehicle,
you must observ ethe followin gpoints:
X Mak esure that th evehicl eiss tationary and
that th ekeyis in position 0in th eignition
lock.
X Turn th ekeyto position 2in th eignition
lock.
On vehicles wit hKEYLESS-GO ,use th ekey
instead of th eStart/Sto pbutton
(Y page 181).
X Depress th ebrak epedal and keep it
depressed.
X Vehicles with automatic transmission:
shif tthe transmission to position N.
X Vehicles with manua ltra nsmission:
depress th eclutch pedal fully and engage
neutral.
X Releas ethe brak epedal.
X Releas ethe parking brake. Towin
gawaya nd tow-starting
409Breakdown assistance Z

X
Switch on the hazard warning lamps
(Y page 145).
X Leave the key in position 2in the ignition
lock.
i Whe
ntowing with the hazard warning
lamps switche don, us ethe combination
switch as usua ltosignal achange of direc-
tion. In this case, onl ythe turn signal sfor
the desired direction flash. Whe nyou reset
the combination switch, the hazard warn-
ing lamps star tflashing again. Towin
gthe vehicle awa ywitht he rear
axl eraised
! Vehicles with 4MATI
Cmustn ot be towed
with the front or rea raxler aised ;otherwise,
the transmissio nmay be damaged.
! Vehicles with automatic transmission
mus tnot be towed with the rea raxler aised.
The car/traile rcombination may otherwise
swerve or eve noverturn.
! The ignition mus
tbes witche doff if you
are towing the vehicl ewitht he rea raxle
raised .Intervention by ESP ®
could other-
wise damag ethe brake system.
Onl yvehicle swithout 4MATIC can be
towed awa ywitht he rear axl eraised.
X Switch on the hazard warning lamps
(Y page 145).
X Mov ethe front wheel stothe straight-
ahea dposition.
X Turn the key in the ignition lock to position
0 and remove the key from the ignition
lock.
X Whe nleaving the vehicle, take the key or
the KEYLESS-GO key with you.
Whe ntowing your vehicl eawayw itht he rear
axl eraised ,itisi mportant tha tyou observe
the safety instructions (Y page 407). Transporting the vehicle
! Yo
um ay onl ysecure the vehicl ebythe
wheels, not by parts of the vehicl esuchas
axl eors teering components .Otherwise,
the vehicl ecould be damaged.
The towing eyes or traile rtow hitch can be
used to pull the vehicl eonto atraile rort rans-
porter if yo uwishtot ranspor tit.
X Vehicles with manual transmission:
depress the clutch peda lfully and shift to
neutral.
X Vehicles with automatic transmission:
turn the key to position 2in the ignition
lock.
X Shift the automatic transmissio ntoposi-
tion N.
As soon as the vehicle is loaded: X Prevent the vehicl efrom rolling away by
applying the parking brake.
X Vehicles with manual transmission:
depress the clutch peda lfully and engage
first or reverse gear.
X Vehicles with automatic transmission:
shift the automatic transmissio ntoposi-
tion P.
X Turn the key in the ignition lock to position
0 and remove the key from the ignition
lock.
X Secure the vehicle. Note
sfor 4MATIC vehicles
! Vehicles with 4MATI
Cmustn ot be towed
with the front or rea raxler aised ;otherwise,
the transmissio nmay be damaged.
If the vehicl ehastransmissio ndamageor
damag etothe front or rea raxle, have it trans-
ported on atransporter or trailer.
In the even tofdamage to the electrical
system
If the battery is defective, the automatic
transmissio nwillbel ocked in position P.To
shift the automatic transmissio ntoposition 410
Towin
gawayand tow-startingBreakdown assistance

N,y
ou must provide power to the vehicle's
electrical system in the same way as when
jump-startin g(Ypage 405).
Have the vehicle transported on atransporter
or trailer. Tow-starting (emergency engine
starting)
! Vehicles with automatic transmission
must not be tow-started. The transmission
may otherwise be damaged.
i You can find information on "Jump-start-
ing" under (Y page 405).
Before tow-starting, the following conditions
must be fulfilled:
R the battery is connected
R the engin ehas cooled down
R the exhaust system has cooled down
When tow-starting, it is important that you
observ ethe safet ynotes (Y page 407) and the
legal requirementsine ach respective coun-
try.
X Switch on the hazard warnin glamps
(Y page 145).
X Fit the towin geye (Y page 409).
X Secure the rigid towin gbar or the towing
rope.
X Depress the brake pedal and keep it
depressed.
X Turn the key to position 2in the ignition
lock.
X Depress the clutc hpedal fully, engage sec-
ond gear and continue to keep the clutch
pedal fully depressed.
X Release the brake pedal.
X Tow-start the vehicle.
X Release the clutc hpedal slowly, do not
depress the accelerator pedal while doing
so.
X When the engin ehas been started, imme-
diately depress the clutc hpedal fully and
shift to neutral. X
Pull over at asuitable place and sto pthe
vehicle safely, paying attention to road and
traffic conditions.
X Depress the parkin gbrake.
X Remove the rigid towin gbar or towin grope.
X Remove the towin geye (Y page 409).
X Switch off the hazard warnin glamps. Electrical fuses
Important safet
ynotes G
WARNING
If you manipulate, bridge or replace afaulty
fuse with afuse of ahigher amperage, the
electric cables could be overloaded. This may result in afire. There is arisk of an accident
and injury.
Always replace faulty fuses with specified new fuses of the correct amperage.
! Only use fuses that have been approved
for Mercedes-Benz vehicles and which
have the correct fuse ratin gfor the system
concerned. Otherwise, components or sys-
tem scould be damaged.
The fuses in your vehicle serv etodisconnect
faulty circuits. If afuse blows, all the compo-
nents on the circuit and their function swill
fail.
Blown fuses must be replaced with fuses of
the same rating, which you can recognise by
the colour and fuse rating. The fuse ratings
are listed in the fuse allocation chart.
If the newly inserted fuse also blows, have the
cause traced and rectified at aqualified spe-
cialist workshop, e.g. aMercedes-Benz Ser-
vice Centre. Befor
ereplacing afuse
Pay attention to the important safet ynotes
(Y page 411). Electrical fuses
411Breakdown assistance Z

X
Safeguard the vehicl eagains trolling away
(Y page 205).
X Switch off the engine.
X Switch off al lelectrical consumers.
X Remove the key from the ignition lock.
or, on vehicles with KEYLESS‑GO,
X Ope nthe driver' sdoor.
The on-board electronics now have status
0.T hisist he same as the key having been
removed.
The driver' sdoorc an be closed again.
All indicator lamps in the instrument cluster
mus tbeo ff.
The fuses are locate dinvarious fus eboxes:
R fus ebox in the engine compartment on the
left-hand sid eofthe vehicle, when viewed
in the direction of travel
R fus ebox in the boot/luggage compartment
on the right-hand sid eofthe vehicle, when
viewe dinthe direction of travel
The fus ealloc ation chart is locate dinthe
vehicl etool kit in the stowag ecompartment
under the boot/luggage compartment floor
(Y page 395). Fus
eboxin the engine compartment
Pa ya ttention to the important safety notes
(Y page 411). G
WARNING
Whe nthe bonne tiso pen, and the windscreen
wipers are set in motion, yo ucan be injured by
the wipe rlinkage. There is ariskofi njury.
Alway sswitch off the windscreen wipers and
the ignition before opening the bonnet.
! Make sure tha
tnomoisture can enter the
fus eb ox when the cove risopen.
! Whe
nclosing the cover, make sure tha tit
is lying correctly on the fus ebox. Moisture
seeping in or dirt could otherwise impair
the operation of the fuses. X
Make sure tha tthe windscreen wipers are
switche doff.
X Ope nthe bonnet.
X Remove any existing moisture from the
fus eb ox using adry cloth.
X To open: take lines ;outoft he guides.
X Mov elines ; to one side. Route the lines
behind connection =to do this.
X Ope nretaining clamps :.
X Remove the fus ebox cove rforwards.
X To close: check whethe rthe sea lislying
correctly in the cover.
X Insert the cove ratthe rea rofthe fus ebox
into the retainer.
X Fol dd ownc ove rand close clamps :.
X Secure lines ;in the guides.
X Close the bonnet. Fus
eboxin the boot
Pa ya ttention to the important safety notes
(Y page 411).
! Make sure tha
tnomoisture can enter the
fus eb ox when the cove risopen.
! Whe
nclosing the cover, make sure tha tit
is lying correctly on the fus ebox. Moisture
seeping in or dirt could otherwise impair
the operation of the fuses. 412
Electrical fusesBreakdown assistance

phones, two-way radios) that may be being
operated in or near the vehicle.
Checking the tyr epressure electroni-
cally X
Make sure that the key is in position 2
(Y page 179) in the ignition lock.
X Press the =or; button on the steer-
ing wheel to select the Service
Servicemenu.
X Press the 9or: button to select
Tyre pressure
Tyre pressure.
X Press the abutton.
The curren ttyre pressure for each wheel
will be displayed in the multifunction dis-
play.
If the vehicle has been parked for over
20 minutes, the Tyre Tyrepressures
pressures will
willbe
be
displayed after afew minute sof
displayed after afew minute sof
driving
driving message appears.
After ateach-in period, the tyre pressure
monitor automatically detects new wheels or new sensors. As long as aclear allocation of
the tyre pressure values to the individual
wheels is not possible, the Tyre pressure Tyre pressure
monito ractive
monito ractive display message is shown
instead of the tyre pressure display. The tyre
pressures are already being monitored.
If an emergency spare wheel is fitted, for a
few minutes the system may continue to
show the tyre pressure of the wheel that has
been removed. If this occurs, not ethat the
value displayed for the position where the
spare wheel is fitted is not the same as the
curren ttyre pressure of the emergency spare
wheel.
Warning messages of the tyr epressure
monitor If the tyre pressure monitor detects
apres-
sure loss in one or more tyres, awarning mes-
sage is shown in the multifunction display and
the yellow tyre pressure monitor warning
lamp comes on.
R If the Please correc ttyre pressure
Please correc ttyre pressure
message appears in the multifunction dis- play, the tyre pressure in at least one tyre is
too low and must be corrected at the next
opportunity.
R If the Check tyre(s) Check tyre(s) message appears in
the multifunction display, the tyre pressure in one or more tyres has dropped signifi-
cantly and the tyres must be checked.
R If the Warnin gtyre defect
Warnin gtyre defect message
appears in the multifunction display, the
tyre pressure in one or more tyres has drop-
ped suddenly and the tyres must be
checked.
Observ ethe instructions and safety notes in
the display messages in the "Tyres" section
(Y page 322).
If the wheel position sonthe vehicle are inter-
changed, the tyre pressures may be displayed for the wrong position sfor as hort time. After
af ew minutes of driving, this is rectified and
the tyre pressures are displayed for the cor-
rect positions.
Restarting the tyr epressure monitor When you restart the tyre pressure monitor,
all existing warning messages are deleted and
the warning lamps go out. The monitor uses
the currently set tyre pressures as the refer-
enc evalues for monitoring. In most cases, the
tyre pressure monitor will automatically
detec tthe new referenc evalues after you
have changed the tyre pressure. However,
you can also define referenc evalues man-
ually as described here. The tyre pressure
monitor then monitors the new tyre pressure values.
X Use the table on the inside of the fuel filler
flap to ensure that the tyre pressure is set
correctly in all four tyres for the current
operatin gconditions.
Also observe the notes in the section on
tyre pressures (Y page 420).
X Make sure that the key is in position 2in the
ignition lock.
X Press the =or; button on the steer-
ing wheel to select the Service Servicemenu. 424
Tyrep
ressureWheels and tyres

X
Remove th ekeyfrom th eignition lock.
or, on vehicles wit hKEYLESS‑GO:
X Ope nthe driver's door.
The on-boar delectronics no whaves tatus
0 .T his is th esam east hekeyh avin gbeen
removed.
X Remove th eStart/Sto pbutto nfromt he
ignition loc k(Ypage 179).
X If included in th evehicl eequipment,
remove th etyre-chang etoolkitfrom the
vehicl e(Ypage 395).
X Safeguar dthe vehicl eagainst rollin gaway.
i Apart from som
ecountry-specific var-
iants ,vehicles are no tequipped wit htyre-
changin gtools. Some tools for changin ga
whee lare specific to th evehicle. Fo rmore
information on whic htools are require dto
perfor mawheelcha ng eony our vehicle,
consult aqualified specialist workshop.
Necessary tyre-changin gtools may
include, for example:
R Jack
R Wheel chock
R Wheel wrench
Securing th evehicle against rolling
away If your vehicl
eisequipped wit hawheelchock,
it can be found in th etyre-chang etoolkit
( Y page 395).
The foldin gwhee lchock is an additional
securin gmeasure to preven tthe vehicl efrom rollin
gaway, for exampl ewhen changin ga
wheel.
X Fold bot hplates upwards :.
X Fold out lower plate ;.
X Guide th elugs on th elower plat efully into
th eo penings in base plate =. Securin
gthe vehicl eonlevel ground (example:
Saloon)
X On level ground: placechock soro ther
suitable items under th efront and rear of
th ew hee ltha tisd iagonally opposit ethe
whee lyou wish to change. Securin
gthe vehicl eons light downhill gradients
(example: Saloon)
X On sligh tdownhil lgradie nts:place
chocks or other suitable items in fron tof
th ew heels of th efront and rear axle.
Raisin gthe vehicle G
WARNING
If you do no tposition th ejackc orrectly at the
appropriat ejacking poin tofthevehicle, the Changing
awheel
427Wheels and tyres
Z