Only
replace abattery withabattery thathas
been recommended byMercedes-Benz .
Remove theSmartKey ifyou park thevehicle
and donot require anyelectrical consumers.
The vehicle willthen usevery little energy, thus
conserving batterypower.
If the power supply hasbeen interrupted, e.g.if
you reconnec tthe battery, youwillhave to:
R set the clock using themultimedia system
(see theDigital Operator's Manual)
R reset thefunction forfolding theexterior mir-
rors in/out automaticall y,by folding themir-
rors outonce (Ypage 98) Charging
thebatter y G
WARNING
During charging andjump-startin g,explosive
gases canescape fromthebattery. Thereisa
risk ofan explosion.
Particularl yavoid fire,open flames, creating
sparks andsmoking. Ensurethereissufficient
ventilation whilecharging andjump-startin g.
Do not lean over abattery. G
WARNING
Battery acidiscaustic. Thereisarisk ofinjury.
Avoid contactwith skin, eyesorclothing. Do
not inhale anybattery gases.Donot lean over
the battery. Keepchildren awayfrom batter-
ies. Wash awaybattery acidimmediately with
plenty ofclean water andseek medical atten-
tion. G
WARNING
A discharged batterycanfreeze attempera-
tures below freezing point.Whenjump-start-
ing the vehicle orcharging thebattery, gases
can escape fromthebattery. Thereisarisk of
an explosion.
Allow thefrozen battery tothaw outbefore
charging itor jump-startin g.
! Only
usebattery chargers withamaximum
charging voltageof14.8 V.
! Only
charge thebattery usingthejump-
starting connectionpoint. The
jump-startin gconnec tionpoint isin the
engine compartment (Ypage 282).
X Open thehood.
X Connect thebattery charger tothe positive
terminal andground pointinthe same order
as when connec tingthedonor battery inthe
jump-startin gprocedure (Ypage 282).
If the <004C00510047004C004600440057005200550012005A004400550051004C0051
004A[ lampsdonot light upin
the instrument clusteratlow temperatures, itis
very likely thatthedischarged batteryhasfro-
zen. Inthis case youmay neither jump-start the
vehicle norcharge thebattery. Theservice lifeof
a thawed-out batterymaybeshorter. Thestart-
ing characteristics canbeimpaired ,particularl y
at low temperatures. Havethethawed-out bat-
tery checked ataqual ified speciali stworkshop.
Only charge theinstalled batterywithabattery
charger whichhasbeen tested andapproved by
Mercedes-Benz .A battery charger unitspeciall y
adap tedforMercedes-Benz vehiclesandtested
and approved byMercedes-Benz isavail able as
an accessory. Itpermits thecharging ofthe bat-
tery inits installed position. Contactanauthor-
ized Mercedes-Benz Centerforfurther informa-
tion andavail ability. Read thebattery charger's
operating instructionsbefore charging thebat-
tery. Replacing
the12Vbatter y
Observe thenotes onthe 12Vbattery
(Y page 279).
Mercedes-Benz recommendsthatyouhave the
12 Vbattery replaced ataqual ified speciali st
workshop, e.g.atan authorized Mercedes-Benz
Center.
If you want toreplace thebattery yourself,
observe thefollowi ngnotes:
R Alway sreplace adefective batterywithabat-
tery which meets thespecific requirements of
the vehicle.
The vehicle isequip pedwith abattery using
AGM (absorbe ntglass mat)technology ora
battery usingEFB(enhanced floodedbattery)
technology. Fullvehicle functionality isguar-
anteed onlywith anAGM orEFB battery. If
replacement isnecessary, alwaysuse thebat-
tery technology originallyinstalled. Switching
between thebattery technologies isnot per-
mitted. Forsafety reasons, Mercedes-Benz
recommends thatyouonly usebatteries Bat
tery (vehic le)
281Breakdown assistance Z
The
towing eyeislocated withthevehicle tool
kit under thecargo compart mentfloor
(Y page 274).
Vehicles withtheTIREFIT kit:the towing eyeis
beneath thetire inflation compressor
(Y page 274).
X Press themark oncover 0043inwards inthe
direction ofthe arrow.
X Take cover 0043offthe opening.
X Scr ewinthe towing eyeclock wisetothe stop.
Removing thetowing eye X
Unsc rewand remove thetowing eye.
X Attach cover 0043tothe bumper andpress until
it engages.
X Place thetowing eyeinthe stowage well
beneath thecargo compart mentfloorinthe
cargo compart ment(Ypage 274).
X Vehicles withtheTIREFIT kit:put back thetire
inflation compressor (Ypage 274). Towing
thevehicle withthefront axle
raised
Observe theimportant safetynoteswhen tow-
ing your vehicle withthefront axleraised
(Y page 284).
Only vehicles without4MATICcanbetowed
with thefront axleraised.
! Vehicles
with4MATI Cmust notbetowed
with either thefront orthe rear axle raised, as
doing sowill damage thetrans mission.
Vehicles with4MATI Cmay either betowed away
with both axles onthe ground orbe loaded up
and trans ported.
! The
ignition mustbeswitched offifthe vehi-
cle isbeing towed withthefront axleraised.
Otherwise, ESP®
may intervene anddamage
the brake system.
X On
vehicles withKEYL ESS-GO orthe KEY-
LESS-GO startfunction: youmust usethe
Smart Keyinstead ofthe Start /Stopbutton
(Y page 124).
X Make surethatthevehicle isstation ary.
X Turn theSmart Keytoposition 0048inthe igni-
tion lock.
X When thevehicle isstation ary,depress the
brake pedalandkeep itdepressed. X
Shift theautomatic transmission toposition
005D.
X Release thebrake pedal.
X Release theelectric parking brake.
X Switch offthe automatic locking
(Y page 189).
X Switch onthe hazard warning lamps
(Y page 103).
X Turn theSmart Keyinthe ignition locktoposi-
tion 005Aand leave theSmart Keyinthe ignition
lock. Towing
avehicle withboth axles on
the ground
It is important thatyouobserve thesafety
instr uctions whentowing awayyourvehicle
(Y page 284).
X On
vehicles withKEYL ESS-GO orthe KEY-
LESS-GO startfunction: youmust usethe
Smart Keyinstead ofthe Start /Stopbutton
(Y page 124).
The automatic transmission automatically shifts
to position 005Dwhen youopen thedriver's or
front -passenger doororwhen youremove the
Smart Keyfrom theignition lock.Inorder to
ensure thattheautomatic transmission staysin
position 005Cwhen towing awaythevehicle, you
must observe thefollowing points:
X Make surethatthevehicle isstation ary.
X Turn theSmart Keytoposition 0048inthe igni-
tion lock.
X Depress andhold thebrake pedal.
X Shift theautomatic transmission toposition
005C.
X Leave theSmart Keyinposition 0048inthe igni-
tion lock.
X Release thebrake pedal.
X Release theelectric parking brake.
X Switch onthe hazard warning lamps
(Y page 103).
i In
order tosignal achange ofdirection when
towing thevehicle withthehazard warning
lamps switched on,use thecombinat ion
switch asusual. Inthis case, onlytheindicator
lamps forthe direction oftravel flash.After
resett ingthe combinat ionswitch, thehazard
warning lampstartsflashing again. 286
Towing
andtow-sta rtingBr eakdown assistance
