sho
wall objects whic harevery nea rtooru nder
th er ear bumper .Itwill notwarny ou of acolli‐
sion ,peopl eoro bjects.
The area behin dthe vehicle is displa yedasam ir‐
ro rimage.
Sy stem limitations
The rear vie wcamer awithi nside rearvie wmirror
displa ywill no tfunction ,orwill onlypartially
function ,inthefollowing situations:
R ifth er eish eavyrain, sno worfog
R ifth ea mbient light is poor ,e.g. at night
R ifth ea reaisi lluminated wit hfluorescent
lighting, thei nside rearvie wmirro rd isplay
ma yflicker
R ifth et emperatur echanges very quickl y,for
ex ample if youd rive out of thec old int oa
heated garage inthew inter
R ifth ea mbient temp eratur eisveryh igh
R ifth ec amera lens is co vered, dirty or fogged
up. Obser vethen otes on cleaning ther ear
vie wc amer a(/pag e195).
R thec amera or rear of your vehicle is dam‐
aged. In this case, ha vethec amera and its
position and setting checkedataq ualified
specialis tworks hop.
The field of vision and other functions of ther ear
vie wc amer amaybe restricted du etoadditional
accesso ries on ther ear of thev ehicle (e.g.
license plat ebrack et or bicycle rack ).
% The inside
rearvie wmirro rd ispla ycontrast
ma ybei mpaire dd uetoincident sunligh tor
ot her light sources. In this case, pa yparticu‐
lar attention.
% Ha
ve thei nside rearvie wmirro rr epaired or
re placed if its use is considerabl yrestricted,
fo re xamp lethro ugh pixel er rors.
% Objects
that ar enotat ground le vela ppear
fur ther aw ay than they actuall yare.
Examples of suc hobjects:
R theb umper of avehicle par kedb ehind
R thed rawbar of atrailer
R theb all nec kofat railer coupling
R thet ail-en dofat ruck
R slanted posts Displaying and hiding
ther ear-vi ewmirror
displ ay
Displaying #
Engage reve rseg ear.
The rear vie wcamer aimag eappear sonthe
lef tside of thei nside rearvie wmirro r.
% Be
awareoft he sy stem limitations of ther ear
vie wc amer awithr ear-vie wmirro rd ispla y.
Hiding #
Engag eanother gear.
or #
Swit chofft he engine.
The displa ywill be hidden af teras horttime. AT
TENTION ASSI ST Fu
nction of ATTENTION ASSI ST
AT TENTION ASSIS Tcan assis tyou on long,
mono tonou sjou rney s, e.g. on highw aysa nd trunk
ro ads. If ATTENTION ASSIS Tdetects ind icator sof
fa tigue or increased lapse sinconcentration on
th ep artoft he driver ,itsuggests taking abreak.
AT TENTION ASSIS Tisonlyana id. It cannot
alw aysd etect dr owsiness or increased lapses in
concentration in good time. The sy stem is no ta
substitut efor aw ell-res teda nd attentiv edrive r.
On long journe ys,tak er egular and timel ybreaks
th at allo wyoutorest properly.
Yo uc an choose between tw osettings:
R Standard: normal sy stem sensitivity
R Sensitive: higher system sensitivity .The
driver is warned earlier and thea ttention le vel
de tected bythes ystem( Attention Le vel) is
adap teda ccordingly.
If fatigue or increased lapse sinconcentration are
de tected, theATTENTION ASSIST: Take aBreak!
wa rning appear sinthe Instrument Displa y.Yo u
can acknowledg ethe messag eand take ab reak if
necessar y.Ifyo udon ottake ab reak and ATTEN‐
TION ASSIS Tcontinues todetect increased lap‐
ses in concentration, youw ill be warned again
af te ram inimu mof15m inutes. 15 6
Driving and pa rking
become trapped between
thev ehicle and the
traile rdrawbar. #
Do no tuncouple trailer swithan
engaged overrun brake. Do no
tuncouple atrailer wit hanoverrun brak ein
as tate ofove rrun. Otherwise, ther ebound of the
ove rrunb rake can damag eyour vehicle. #
Shif tthe selector le vertop osition 005D. #
Appl ythe vehicle's parking brake. #
Close all thed oors. #
Appl ythe trailer's parking brake. #
Secur ethe trailer agains trolling away wit ha
wheel choc kors imilar object. #
Remo vethet railer cables and saf etyc hains. #
Uncouple thet railer. Information about
towing atrailer Operatin
gatrailer is subject toman ystatutory
re gulations suc hasspeedrestrictions.
Man ystatesa lso requ ireana uxiliaryseparate
functional brakin gsystem when towing aweight
th at exc eeds acertain limit .For your saf ety, it is
re commended touse aseparat efunctional brak‐
ing sy stem on an ytowe dvehicle.
Mak esuret hat your trailer combinatio nmeets
local regulations. This no tonlya pplies to your
plac eofr esidence, but also to your destination.
In fo rm atio nont his can be obtained from the
police and local authorities.
Compl ywitht he following when driving wit ha
trailer:
R Practice cornering, stopping and backing up
in at raffic-free location. In this wa y,yo uw ill
ga in driving experience and become accus‐
to med tothen ew handling characteristics.
R Befor edriving, checkt he following:
- that thet railer towh itch and ball coupling
ar es ecure
- that thes afet ys wit ch forb rake dt railer sis
functioning cor rectly
- that thes afet yc hains ar esecur eand
undamaged
- that thee lectrical connection saresecure
- that thel ights ar efunctioning cor rectly
- thew heels ford ama geand cor rect tire
pressur e(/ page 215) R
Adjus tthe outside mir rors so that youh avea
clea rviewoft herear sectio nofthe trailer.
R Ifth et railer is equipped wit hanindividual
braking sy stem, checkb efor eeachj ourney
whe ther theb rake sa refunctioning cor rectl y.
R Ifth et railer has electronicall ycont rolled
brakes, pull away carefully wi th thevehicle/
trailer combination .Brake manually using the
brak econtroller and checkw hether the
brakes ar efunctioning cor rectl y.
R Secu rethel oad on thet railer in line wit hthe
re qu irements and rules forl oad-securing
me thods.
R When driving wit hatrailer ,chec katr egular
inter vals that thel oad is secur eand that the
light sand brakes ar efunctioning cor rectl y.
R Bea rinm indthat theh andling characteristics
ar em oreu nstable when towing atrailer than
when drivin gwithout atrailer .Avoid sudden
st eering mo vements.
R The vehicle/trailer combination is heavier,
accelerates mor eslowl y,has areduced
climbing ability and an increased braking dis‐
ta nce. It is mor esusceptible toside winds
and requ ires careful steering.
R If possible, do no tbrake suddenl y,but rath er
moderatel yatfirst so that thet railer can acti‐
va te its brakes. Then inc rease thep ressur eon
th eb rake pedal.
R Ifth ea utomatic transmission shifts between
ge arsonu phill or downhill gradients, restrict
th es hiftrange. Select shif trang e4,3,2or1.
Al owe rgear and reduced speed decrease the
ri sk of engine damage.
R When driving on adownhill gradient, shif ttoa
lo we rgear touse thee ngine' sbraking ef fect.
Av oid cons tant braking, as this could cause
th ev ehicle brakes and possibly also the
traile rbrake stoo verheat.
R Ifth ec oolant temp eratur eincreases signifi‐
cant lywhen thea ir-conditionin gsystemis
switched on, switc hthe air-conditioning sys‐
te mo ff.
Coolant heat can also be dissipated by
switching thea irflow and thet emperatur eof
th eh eater or air conditioning tothem aximum
le ve l. Open thew indo wsif necessar y.
R When overtak ing, pa yparticular attention to
th ei ncreased overtakin gdista nce of your
ve hicle/trailer combination. 16 6
Driving and pa rking
Overvie
wofInstrument Display &
WARNING Risk of accident du etoan
instrumen tdispla ymalfunction
If th eI nstrument Displa yhasfailed or mal‐
functioned, youm aynotrecognize function
re strictions applying tosaf etyr ele vant sys‐
te ms.
The operating saf etyofy ourvehicle ma ybe
impaired. #
Driv eonc arefull y. #
Have thev ehicle checkedi mmediately
at aq ualified specialis tworks hop. If
yo ua reuncer tain rega rding theo perational
saf etyofy ourvehicle, par kthe vehicle safel yas
soon as possible. Infor maqualified specialist
wo rkshop.
Instrument Display Example: Instrument Displa
ywithc olor display
1 Speedome ter
2 Multifunction display
3 Tach ome ter
4 Coolan ttemperatur edisplay
5 Fuel le vela nd fuel filler flap locatio nindicator
In normal drivin gmode,coolant temp eratur edis‐
play 4is permitted torise tother ed marking. Example: Instrument Displa
ywithb lacka nd white
display
1 Speedome ter
2 Indicator lamps display
3 Tach ome ter
4 Multifunction display
* NO
TEEngine damag eduetoexc essively
high engine speeds The engine will be damaged if
youd rive with
th ee ngine in theo verrev ving range. #
Do no tdrive with th eengine in theo ver‐
re vving range. Whe
nthe redm arking in tach ome ter3 is
re ached (o verspeed range) ,the fuel supply will be
inter rupte dino rder toprotect thee ngine. &
WARNING Danger of bu rnsw hen open‐
ing theh ood
If yo uo pen theh ood when thee ngine has
ove rheated or during afireint he engine com‐
partment, youc oul dc om eintoc ontact wi th
ho tg ases or other escaping operating fluids. #
Befor eopening theh ood, allo wthe
engine tocool down. #
Inthee vent of afireint he engine com‐
partment, keep theh ood closed and call
th ef ires ervice. Instrument Displa
yand on-boar dcomputer 16 9
#
Toopen: pull handle 1torelease theh ood. #
Reachi ntot he gapa nd push theh ood catch
handle upwards. #
Open theh ood and hold it up. #
Take support 1from theb rack et on the
hood and pull it down wards. #
Inse rtthes uppor tint ot he brac ketb elow 2. &
WARNING Risk offire due toflammable
material in thee ngine compartmen tor
th ee xhau stsystem
Clo thsoro ther flammable materials lef tin
th ee ngine compartmen tbymista ke could
igni teupon coming int ocontact wi thhots ec‐
tions of thee ngine or exhaus tsyst em. #
Ensur ethat ther ea reno flammable
ex tern al materials in thee ngine com‐
partmen torontheexhaus tsyst em
af te rm aintenance workhas been con‐
ducted. &
WARNING Risk of accident and inju ry
when opening and closing thee ngine
hood
When opening or closing thee ngine hood, it
ma ysuddenl ydropi ntot he end position.
Ther eisar isk of injur yfor an yone in the
engine hood's rang eofm ovement. #
Only open or close thee ngine hood
when ther ea reno persons in thee ngine
hood's rang eofm ovement. *
NO
TEDama getotheh ood Pushing
theh ood closed wit hyour hands
could dama geit. #
Toclos ethe hood, le titdropf romt he
specified height. #
Toclose: liftt he hood slightl y. #
Movesupport 1totheb rack et on theh ood
and apply light pressur etoengageit. #
Lowe rthe hood and le titdropf romah eight
of appr oximately 0.5 ft(15c m). #
If it is still possible toliftt he hood alittle,
open theh ood again and le titdropf roma
height of appr oximately 0.7 ft(20 cm) until it
engages cor rectly. Engin
eoil Che
cking thee ngine oil le velw ithad ipst ick &
WARNING Risk of bu rnsf romh otcom‐
ponent parts in thee ngine compartment
Cer tainc omponent pa rtsint he engine com‐
partment can be very hot, e.g. thee ngine, the
cooler and pa rtsoft heexhaus tsystem. #
Letthe engine cool down and only
to uc ht he component parts described
as follo ws. Depending on
thee ngine, thed ipstic kmaybe in
va rying locations in thee ngine compartment.
Wa itin gtimeb efor echecking theo il le vel:
R engin eatn ormal operatin gtemperature:
fi ve minutes
R engine no tatnormal operating temp erature
(the engine waso nlys tarted briefly ,for exam‐
ple): 30 minutes Main
tenance and care 187
Dip
stick( example) #
Park thev ehicle on an even sur face. #
Remo vedipstick 1and wipe it off. #
Slowl yinser tdipstick 1intot he dipstick
guide tube as farasitw illgoa nd pullito ut
af te rt hree seconds.
R Oil le velO K:theo il le velisb etwe en the
MIN and theM AX mar k.
R Oil le veltoo low: theo il le velisatt he MIN
mar korb elow. #
Ifth eo il le velist oo lo w,add appr ox.
1. 1USq t(1l iter) engine oil. #
Ifth eo il le velist oo high, drain of fexcess
engine oil.
Vi sit aq ualified specialis tworks hop.
Checking thee ngine oil le velw itht he on-
boa rdcompu ter
Re quirements:
R The vehicle is le veld uring them easuring
process.
R The hood is no topen.
R Dependin gonthe driving profile, theo il le vel
can be displa yedo nlya fter ad riving time of
up to30 minutes and onl ywhen thei gnition
is switched on.
On-boar dcomputer:
4 Service 5
Engine Oil Level
Yo uw ills ee one of the following messa geson
th em ultifunction displa y: #
Measuring Engine Oil Level...:m easurement
of theo il le veln ot ye tpossible. Repeat the
qu erya fter drivin gfor am aximu mof
30 minutes. #
Engine Oil Level OK andtheb ar showing the
oil le velont he multifunction displa yisgreen
and lies between "MIN" and "MAX": theo il
le ve lisO K. #
Engine Oil Level Drive until the engin eis
warm. :warmupt he engine tooperating tem‐
perature. #
Engine Oil Level Correct Measurement Only
if Vehicl eIsonL evel Ground:p arkt he vehicle
on aleve lsurface. #
Engine Oil Leve lAdd 1,0 liq.gal. andtheb ar
showing theo il le velont he multifunction dis‐
pla yiso rang ea nd lies belo w"MIN": add
1. 1USq t(1l)ofe ngine oil. #
Reduce Engine Oil Level andtheb ar showing
th eo il le velont he multifunction displa yis
orang eand lies abo ve"MAX": drain of fexcess
engine oil.
Vi sit aq ualified specialis tworks hop. #
For Engine Oil Level Switch Ignition On :
switc hont he ignition in order tocheckt he
engine oil le vel. #
Engine Oil Level System Inoperative:t he sen‐
sor is defectiv eornotconnected. Visit a
qu alified specialis tworks hop. #
Engine Oil Level System Currently Unavaila-
ble:c losetheh ood.
% Ve
hicles with col doil le veld ispla ys:theo il
le ve lisa utomaticall ydispla yedont he multi‐
function displa yafter thev ehicle has been
non-operational forane xtende dperiod .Ifit
is no tpossible tomeasu rethee ngine oil
le ve l,ac orresponding messag ewill appear.
Ad ding engin eoil &
WARNING Risk of bu rnsf romh otcom‐
ponent parts in thee ngine compartment
Cer tainc omponents in thee ngine compart‐
ment can be very hot, e.g. thee ngine, the
ra diator and parts of thee xhau stsystem. #
Allowthe engine tocool down and only
to uc hc omponent parts desc ribed in the
fo llowing. &
WARNING Danger of bu rnsw hen open‐
ing theh ood
If yo uo pen theh ood when thee ngine has
ove rheated or during afireint he engine com‐
partment, youc oul dc om eintoc ontact wi th
ho tg ases or other escaping operating fluids. 18 8
Maintenance and care
#
Befor eopening theh ood, allo wthe
engine tocool down. #
Inthee vent of afireint he engine com‐
partment, keep theh ood closed and call
th ef ires ervice. If
yo uh ave tocar ryout an yworkint he engine
compartment, touc ho nlyt he following compo‐
nents:
R Hood
R Engine oil filler openin gcap
R Washer fluid reser voir cap
R Coolant expansion reser voir cap &
WARNING Risk offire and injur yfrom
engine oil
If engine oil comes int ocontact wi thhotc om‐
ponent parts in thee ngine compartment, it
ma yignite. #
Mak esuret hat no engine oil is spilled
next tothef iller opening. #
Allowthe engine tocool of fand thor‐
oughly clean thee ngine oil from compo‐
nent parts befor estartin gt he vehicle. *
NO
TEEngine damag eduetoincor rect oil
fi lter ,incor rect oil or additi ve #
Do no tuse engine oi loranoilfilter with
specifications deviatin gfromt hose
re qu ired fort he prescribed service
inter vals.
Mercedes-Benz recommends using original or
te sted replacement and service parts. #
Do no tchang ethe engine oil or oil filter
in order tosetc hang einter vals longer
th an those prescribed. #
Do no tuse an yadditive. #
Followt he instructions on thes ervice
inter vald ispla yfor changing thee ngine
oil. *
NO
TEDama gecaused byaddin gtoo
muc hengine oil To
om uche ngine oil can damag ethe engine
or thec atalytic con verter. #
Have excess engine oil remo vedata
qu alified specialis tworks hop. Engine OM651
Engine OM642
#
Turn cap 1counter-clockwise and remo veit. #
Adde ngin eoil. #
Replace cap 1and tur nitclockwise until it
engages. #
Chec kthe oil le vela ga in. Chec kusing theo n-
boar dcomputer (/ page188) ,chec kwith
th eo il dipstic k(/pag e187). Checking
thec oolant le vel &
WARNING Risk of bu rnsf romh otcom‐
ponent parts in thee ngine compartment
Cer tainc omponents in thee ngine compart‐
ment can be very hot, e.g. thee ngine, the
ra diator and parts of thee xhau stsystem. #
Allowthe engine tocool down and only
to uc hc omponent parts desc ribed in the
fo llowing. Maintenance and care
18 9
If
yo uh ave tocar ryout an yworkint he engine
compartment, touc ho nlyt he following compo‐
nents:
R Hood
R Engine oil filler openin gcap
R Washer fluid reser voir cap
R Coolant expansion reser voir cap &
WARNING Danger of bu rnsw hen open‐
ing theh ood
If yo uo pen theh ood when thee ngine has
ove rheated or during afireint he engine com‐
partment, youc oul dc om eintoc ontact wi th
ho tg ases or other escaping operating fluids. #
Befor eopening theh ood, allo wthe
engine tocool down. #
Inthee vent of afireint he engine com‐
partment, keep theh ood closed and call
th ef ires ervice. &
WARNING Risk of scalding from hot
coolant
The engine cooling sy stem is pressurized,
particular lywhen thee ngine is warm.Ify ou
open thec ap, youc oul dbes calded byhot
coolant spr aying out. #
Letthe engine cool down befor eopen‐
ing thec ap. #
When opening thec ap, wear pr otective
gl ove sand saf etyg lasses. #
Open thec ap slowl ytorelease pres‐
sure. Allo
wthe engine and thee ngine cooling sy stem
to cool down befor echecking thec oolant le velor
re filling coolant.
* NO
TEPaint wo rkdamag eduetocoolant If coolant
getsonp ainted sur faces, thep aint‐
wo rkcan be damaged. #
Addc oolant carefully. #
Remo vespilledc oolant. Checking
thec oolant le vel Example: coolant
expansion reser voir #
Park thev ehicle on an even sur face. #
Ope nthe hood (/ page185). #
Slowly tur ncoolant expansion reser voir cap
1 half aturnc oun ter-clockwise and allow
exc ess pressur etoescape. #
Turn coolant expansion reser voir cap 1fur‐
th er and remo veit. #
Chec kthe coolant le vel.
Ther eise nough coolan tincoolan texpansion
re ser voir if thec oolant reaches theM AX
mar k.
Ad ding coolant #
Refill th ec oolant totheM AX mar konthe
coolant expansion reser voir.
Onl yuse coolan tappr oved byMercedes-Benzto
avo id damagin gthe engine cooling sy stem. #
Replace coolant expansion reser voir cap 1
and tigh tenina clockwise direction. #
Startt he engine. #
Aftera pproxima tely five minutes, switc hoff
th ee ngine again and allo wittocool down. #
Che ckthec oolant le vela ga in and add coolant
if necessar y.
% Obser
veadditional coolant information
(/ page254). 19 0
Maintenance and care
&
WARNING Risk ofexplosion during
ch argin gprocess and startin gassis tance
During thec harging process and starting
assis tance, theb atter ymayrelease an explo‐
siv eg as mixture. #
Avoid fire ,o pen flames ,creating spar ks
and smoking. #
Mak esuret hat ther eiss ufficient venti‐
lation du ring thec harging process and
during startin gassis tance. #
Do no tlea no verab atter y. &
WARNING Risk ofexplosion from afro‐
zen battery
Ad ischar gedb atter ymayfreeze at temp era‐
tures slightl yabove or belo wfreezing point.
During startin gassis tance or batter ycharg‐
ing, batter ygas can be released. #
Alwaysa llowab atterytot hawb efore
ch argin gitorp erform ing startin gassis‐
ta nce. If
th ew arning /indicator lamps do no tlight up in
th ei nstrument displa yaround or belo wfreezing
point, it is very likel ythat thed ischarged battery
has frozen.
In this case, obser vethef ollowing points:
R Do no tgivet he vehicle startin gassis tance or
ch arge theb attery
R The service lif eofabatterythat has been
th awe dmaybe reduced drastically
R The start-up behavior ma ydeteriorate, partic‐
ularly at lo wtemperatures
R It is recommended that youh ave athawed
batter ychec kedataq ualified specialis twork‐
shop
* NO
TEDama gecaused bynume rous or
ex tende dattempts tostar tt he engine Numerous or
extende dattempts tostar tt he
engine ma ydamag ethe catalytic con verter
due tonon-combu sted fuel. #
Avoid numerous and extende dattem pts
to star tt he engine. When jump-s
tarting and chargin gthe batteries,
obser vethef ollowing points:
R Onlyuse undamaged jumper cables/ charging
cable swithas ufficient cross-sectio nand
insula tedt erminal clamps
R Non-insulated parts of thet erminal clamps
mus tnotcom eintoc ontact wi thother me tal
parts while thej umper cables/charging
cables ar econnected totheb attery/jump-
st ar tc onnectio npoint
R The jumper cables/chargin gcable smustn ot
com eintoc ontact wi thanyp arts whic hmay
mo vewhen thee ngine is running
R Alwaysm akes uret hat neither youn orthe
batter yiselectros tatically charged
R Alwaysk eep away from fire and open flames
R Do no tlean overab attery
R When charging: only use abatter ychar ger
th at has been tested and appr ovedby
Mercedes-Benza ndread theo perating
instruction sfor your charge rb efor echarging
th eb atteries
Obser vethea dditional following point sduring
st artin gassis tance:
R Startin gassis tance ma yonly be pr ovided
using batteries wit hanominal voltag eof12V
R The vehicles mus tnot to uche acho ther
R Vehicles with agasoline engine: only per‐
fo rm startin gassis tance when thee ngine and
ex haus tsystema recold #
Vehicles with abatter ymain switch: check
whe ther theb atter ymain switc hisinserted
( / pag e120) #
Secur ethe vehicle using thep arking brake. #
Vehicles with automatic transmission:
shif tthe transmission toposition 005D. #
Switc hoffthei gnition and all electrical con‐
sumers. #
Open theh ood (/ page185). Breakdown assi
stance 203