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
Charging th
ebattery G
WARNING
During chargin gand jump-starting, explosive
gases can escape from th ebattery. Ther eisa
ris kofane xplosion.
Particularly avoid fire, naked flames, creating
sparks and smoking. Ensure there is sufficient
ventilatio nwhile chargin gand jump-starting.
Do no tlean ove rabattery. G
WARNING
Battery acid is caustic .Ther eisar iskofi njury.
Avoid contac twitht he skin, eyes or clothing.
Do no tbreath eina ny battery gases .Donot
lean ove rthe battery. Keep th ebatteries out
of th ereac hofc hildren. Immediately rinse off
battery acid thoroughly wit hplenty of clean
wate rand seek medical attentio natonce. G
WARNING
Ad ischarged battery can freez eattempera-
tures below freezing point. When jump-start-
ing th evehicle or chargin gthe battery, gases
can escape from th ebattery. Ther eisariskof
an explosion.
Allow th efroze nbattery to thaw out before
chargin gitorjump-starting.
! Only use battery chargers wit
hamaxi-
mum chargin gvoltage of 14.8 V.
! Only charge th
ebattery usin gthe jump-
start connection point.
The jump-startin gconnectio npointisint he
engin ecom partmen t(Ypage 405).
X Open th ebonnet.
X Connect th ebattery charge rtothepositive
terminal and eart hpointint hesame order
as when connecting th edonor battery in
th ej ump-startin gprocedure (Y page 405).
If th eindicator/warning lamps do no tlight up
at low temperatures, it is ver ylikely that the
discharged battery has frozen .Inthisc ase,
you may neither charge th ebattery no rjump-
start th evehicle .The servic elife of abattery that has been thawed may be reduced. The
starting characteristic smay be impaired,
especiall yatlow temperatures. Hav ethe
thawed battery checked at aqualified spe-
cialist workshop.
Never charge abattery still installed in the
vehicle unless abattery charge runit
approved by Mercedes-Ben zisbeingu sed. A
battery charge runit specially adapted for
Mercedes-Ben zvehicle sand tested and
approved by Mercedes-Ben zisavailabl easan
accessory. This device permits chargin gof
th eb attery in position. Contac taMercedes-
Ben zServic eCentr efor informatio nand avail-
ability. Read th ebattery charger's operating
instruction sbefore chargin gthe battery. 404
Battery (vehicle)Breakdown assistance
Jump-starting
For the jump-starting procedure, use only the jump-starting connection point, consisting of a positive terminal and an earth point, in the engine compartment. G
WARNING
Battery acid is caustic. There is arisk of injury.
Avoid contact with the skin, eyes or clothing. Do not breathe in any battery gases. Do not lean over the battery. Keep the batteries out of the reach of children. Immediately rinse off battery acid
thoroughly with plenty of clean water and seek medical attention at once. G
WARNING
During charging and jump-starting, explosive gases can escape from the battery. There is arisk
of an explosion.
Particularly avoid fire, naked flames, creating sparks and smoking. Ensure there is sufficient
ventilation while charging and jump-starting. Do not lean over abattery. G
WARNING
During the charging process, abattery produces hydrogen gas. If ashort circuit occurs or sparks
are created, the hydrogen gas can ignite. There is arisk of an explosion.
R Make sure that the positive terminal of aconnected battery does not come into contact with
vehicle parts.
R Never place metal objects or tools on abattery.
R It is important that you observe the described order of the battery terminals when connecting
and disconnecting abattery.
R When jump-starting, make sure that the battery poles with identical polarity are connected.
R It is particularly important to observe the described order when connecting and disconnecting
the jump leads.
R Never connect or disconnectt he battery terminals while the engine is running.G
WARNING
Ad ischarged battery can freeze at temperatures below freezing point. When jump-starting the
vehicle or charging the battery, gases can escape from the battery. There is arisk of an explosion.
Allow the frozen battery to thaw out before charging it or jump-starting.
! Vehicles with
apetrol engine: avoid repeated and lengthy startinga ttempts. Otherwise,
the non-combusted fuel may damage the catalytic converter.
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. Jump-starting
405Breakdown assistance Z
Position number
Bidentifies the charged batter yofthe other vehicle or an equivalent jump-
starting device.
X Slide cover :of positive terminal ;in the direction of the arrow.
X Connec tpositive terminal ;on your vehicle to positive terminal =of donor battery B
using the jump lead, alway sbeginnin gwith positive terminal ;on your own vehicle first.
X Start the engine of the donor vehicle and run it at idling speed.
X Connec tnegative terminal ?of donor battery Bto earth point Aof your vehicle using the
jump lead, connectin gthe jump lead to donor battery Bfirst.
X Start the engine.
X Before disconnectin gthe jump leads, let the engines run for several minutes.
X First ,remove the jump leads from earth point Aand negative terminal ?,then from pos-
itive clamp ;and positive terminal =.Begin each time at the contacts on your own vehicle
first.
X Close cover :of positive clamp ;after removin gthe jump leads.
X Have the batter ychecked at aqualified specialist workshop.
i Jump-starting is not considered to be
anormal operating condition.
i Jump-starting cables and further information regarding jump starting can be obtained at
any qualified specialist workshop. Towing away and tow-starting
Important safety notes
G
WARNING
Safety-relevant functions are restricted or not
availabl eif:
R the engine is not running.
R the brake system or the power steerin gis
malfunctioning
R the voltage supply or the vehicle's electrical
system is malfunctioning.
If your vehicle is towed, significantly greater
force may be required to steer the vehicle or
to brake. There is arisk of an accident.
In such circumstances, use atowing bar.
Make sure that the steerin gismoving freely
before towing. G
WARNING
When towing or tow-starting another vehicle
and its weight is greater than the permissible gross weight of your vehicle, the:
R towing eye may be torn off
R car/trailer combination may swerve or
even overturn
There is arisk of an accident.
When towing or tow-starting another vehicle,
its weight should not be greater than the per- missible gross weight of your vehicle.
i Details on the permissible gross vehicle
weight of your vehicle can be found on the
vehicle identification plate (Y page 472).
! When DISTRONIC PLUS or the HOLD
function is activated, the vehicle brakes
automatically in certain situations.
To avoid damage to the vehicle, deactivate
DISTRONIC PLUS and the HOLD function in the following or similar situations:
R when towing away
R in ac ar wash Towing away and tow-starting
407Breakdown assistance Z
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