1
Seatbackres tinclination
2 Seat height
3 Seat cushio ninclination
4 Seat fore -and-af tposition #
Save thes ettings wit hthe memor yfunction
(/ page69). Setting 4-w
aylumbar support 1
Higher
2 Weaker
3 Lower
4 Stronger #
Use buttons 1to4 toadjus tthe backrest
cur vatur eindividual lyto yo ur spine. Operating
them emor yfunction &
WARNING Risk of an accident if the
memor yfunction is used whil edriving
If yo uu sethem emor yfunction on thed riv‐
er's side while driving, youc oul dlose control
of thev ehicle as aresult of thea djustments
being made. #
Onlyusethem emor yfunction on the
driver's side when thev ehicle is station‐
ar y. &
WARNING Risk of entrapment whe nset‐
ting thes eat wit hthe memor yfunction
When them emor yfunction adjusts thes eat,
yo ua nd other vehicle occupants –particu‐
lar lych ildren –could becom etrapped. #
During thea djustmen tprocess of the
memor yfunction, mak esuret hat no
one has an ybody parts in thes weep of
th es eat. #
If somebody becomes trapped, immedi‐
atelyrelease them emor yfunction posi‐
tion button.
The adjustmen tprocess is stopped. &
WARNING Risk of entrapment if the
memor yfunction is activated bychildren
Children could becom etrapped if they acti‐
va te them emor yfunction, particularly when
unattended. #
Neverlea ve children unat tende dint he
ve hicle. #
When leaving thev ehicle, alw ayst ake
th ek eywit hyou and loc kthe vehicle. The memor
yfunction can be used when thei gni‐
tion is switched off.
St oring seat settings
Seat settings foruptot hree people can be stored
and called up using them emor yfunction. Yo u
can adjus tthe seat and theb ackrest. Seats and
stowage 69
No
tethef ollowing rega rding thet ongue weight:
R Mak efull use of them aximum tongu eweight,
wher epossible.
R Neverfall belo walegall yprescribed minimum
to ngu eweight ;the tongu eweight must
alw aysbep ositive.
R Do no texceed or fall belo wthe permissible
to ngu eweights –this mus tbeobservedd ur‐
ing loading and unloading of thet railer.
Do no texceed thef ollowing values:
R Perm itted braked or unbraked towing capa‐
city
The maximum permissible towing capacity for
unbraked trailer sis1,653 lbs (750 kg).
R Perm issible rear axle load of thet ow ing vehi‐
cle
R Perm issible gross mass of thet ow ing vehicle
R Perm issible gross mass of thet railer
R Perm issible gross combination mass
R Maximum permissible speed of thet railer
The releva nt pe rmitted values, whic hmustn otbe
ex ceeded, can be found in thef ollowing places:
R Inyour vehicle documents
R Onthei dentification plat eofthe trailer hitch
R Onthet railer's identification plate
R Onthev ehicle identification plate
If th er ea rediscrepancies between thev alues, the
lo west one shall apply.
Befor edriving off, ensur ethe following:
R The tir epressur eont herear axle of thet ow‐
ing vehicle has been se tfor them aximum
load.
R The headlamps ha vebeen se tcorrectly.
Va lues appr ovedbyt he manufacturer can be
fo und on thei dentification plates and in thes ec‐
tion fort he towing vehicle (/ page218).
Yo ur vehicle will beha vediffere ntl yw ithat railer
re lativ etow ithout atrailer:
R The vehicle/trailer combination will be heav‐
ier.
R The vehicle/trailer combination will be
re stricted in its acceleration and climbing
ability.
R The vehicle/trailer combination will ha vean
inc reased brakin gdista nce. R
The vehicle/trailer combination will be more
susceptible tocrosswind gu sts.
R The vehicle/trailer combination will requ ire
mor esensitiv esteering.
R The vehicle/trailer combination will ha ve a
lar gerturning circle.
This ma yimp airt he vehicle's driving characteris‐
tics.
When drivin gwithav ehicle/trailer combination,
alw aysa dap tyour speed tothec urrent road and
we ather conditions. Driv ecarefull y.Ke ep asuffi‐
cient saf edista nce.
Co mply withthe maximum speed of 49 mph
(80 km/h) or 62 mph(100k m/h), even in coun‐
tries in whic hhigher speeds ar epermitted for
ve hicle/trailer combinations.
Compl ywitht he legally prescribed maximum
speed forv ehicle/trailer combination sinforce in
th ec ount ry,s tat eorC anadian pr ovinc einq ues‐
tion. Befor esetting off, consult thet railer's vehi‐
cle documents tosee them aximum permissible
speed fory our trailer.
At tach onl yana pprove dtrailer hitc htoyourvehi‐
cle. Use only aball nec kthat has been appr oved
fo ry our vehicle. Further information about availa‐
bilit yand ins tallation of thet railer electrics is
av ailable from an yqualified specialis tworks hop.
The trailer hitc hisone of them ostimp ortant
ve hicle parts forr oad saf ety. Compl ywitht he
instructions on operating, maintaining and servic‐
ing in them anufacturer's operating instructions.
% Yo
ur vehicle's bumper sarenots uitable for
ins talling de tach able trailer towh itch es.
Do no tattac hanyrented traile rtow hitches or
an yo ther de tach able trailer towh itch es tothe
bumpers.
% When using
atrailer ,remember that
PA RKTRONI Cisavailable onl ytoalimited
ex tent, if at all.
% The height of
theb all head will change
depending on thev ehicle's load. In this case,
use atrailer wit haheight-adjus table dr aw‐
bar.
Driving no tes
The maximum permissible speed forv ehicle/
trailer combination sdepends on thet ype of
trailer .Befor esetting off, consult thet railer's
ve hicle documents tosee them aximum permissi‐
ble speed fory our trailer. 16 4
Driving and pa rking
Yo
ur vehicle will beha vediffere ntl yw ithat railer
re lativ etow ithout atrailer ,and will consume
mor efuel. In thec ase of along and steep
descent, youm usts elec tshif trange 3,2or 1in
good time.
% This also applies if
thec ruise cont rolis
switched on.
Yo uw illthereb ymakeu se of thee ngine' sbraking
ef fect and will no thave tobrak easo ften tocon‐
trol thes peed. This will take some of thes train
of ft he brak esystema nd pr event theb rake sf rom
ove rheating and wearing tooq uickl y.Ifyo un eed
additional braking, depress theb rake pedal inter‐
mittently rath er than continuousl y.
Drivin gtips
If th et railer sw ays, remember thef ollowing
points:
R Do no taccelerat eunder an ycircums tances.
R Do no tcounter steer.
R If necessar y,appl ythe brakes.
% Yo
uc an pr eventthet railer from sw aying and
rock ingbyretrofitting stabilizer bar or trailer
st abilit yprograms. Youc an obtain fur ther
information from an authorized Mercedes-
Benz Center.
When youa redrivin gwithat railer ,compl ywith
th ef ollowing points:
R Maintain agreater dis tance than when driving
without atrailer.
R Avoid braking abruptl y.If possible, brak egen‐
tl yf irst of al lsot hatthet railer closes up
behind your vehicle. Then, increase theb rak‐
ing forc er apidl y.
R The values given fors tart-o ff gradeability
re fertos ea level. When driving in moun tain‐
ous areas, no tethat engine output, and there‐
fo re start-of fgradeability ,will dec rease with
inc reasin galtitude. Coupling/uncoupling
atrailer Coupling
atrailer
* NO
TEDama getothev ehicle batter ydue
to full discharge Charging
thet railer batter yusing thep ower
supply of thet railer can damag ethe vehicle
batter y. #
Do no tuse thev ehicle's po wersupply
to charge thet railer batter y. #
Shif tthe selector le vertop osition 005D. #
Appl ythe vehicle's parking brake. #
Close all thed oors. #
Position thet railer on alevel sur face behind
th ev ehicle.
% The ball head height
changes depending on
th ev ehicle's load. In this case, use atrailer
wit hah eight-adjus table trailer dr awbar. #
Couple up thet railer. #
Establish all electrical and other connections
to thet railer. #
Remo veobject sordevices whic hpreve nt the
traile rfromr olling, e.g. wheel choc ks. #
Release thet railer's parking brake.
% The
vehicle harness has acable connection
to theb rake light indicator lamp.
Obser vethem aximum permissible trailer dimen‐
sions (widt hand length).
Mos tUSs tatesa nd all Canadian pr ovinces pre‐
scribe thef ollowing points, and youa reurge ntly
re commended tocomply wi th these:
R Safetyc hains between thet ow ing vehicle and
th et railer .The chains should be routed in a
criss-cross pat tern unde rthe trailer dr awbar.
The ym ustbec onnected tothet railer tow
hitc hand no ttothe bumper or tothev ehicle
axle.
Lea vesuf ficient sla ckinthec hains. This
allo wsfore vens harp cornering.
R Aseparat ebrake system is requ ired forc er‐
ta in trailers.
R Asafet yf eatur eisrequired forb rake dt railers.
De term ine thes pecific requ irements acco rd‐
ing tother ele vant la ws.
If th et railer becomes de tach ed from thet ow‐
ing vehicle, thes afet yf eatur etrigger sthe
trailer brakes and can thus reduce thed anger.
Un coupling atrailer &
WARNING Risk of being crushed and
becoming trapped whe nuncoupling a
trailer
Whe nuncoupling atrail er wi than engaged
ine rtia-activated brake, your han dmay Drivin
gand parking 16 5
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
Due
tothel engt hofy ourvehicle/trailer com‐
bination youw illrequ ireal onger stre tchof
ro ad befor eswit ching bac ktothe original
lane. Pe
rm issible trailer loads and trailer dr awbar
nose weights We
ight information &
WARNING Risk of accident du eto
unbraked trailer wit hexcessivel yhigh
gross weight
If yo ut ow atrailer without aseparat efunc‐
tional brakin gsystema ndagross trailer
we ight (G TW)ofm oret han 1635 lbs (750 kg),
th en thev ehicle brak esystemm ayoverheat.
This increases theb raking dis tance and the
brak esystemm ayeve nfail. #
Alwaysu seatrailer wit haseparate
functional braking sy stem when towing
at railer wit hagross trailer weight
(G TW )ofm oret han 1635 lbs (750 kg). *
NO
TEDama getothed rive train, trans‐
mission or trailer towh itch due toexc ess
gross combination weight The permissible
grosscombination weight is
exc eeded.
The driv etrain, thet ransmission or thet railer
to wh itch ma ybed amaged. #
Compl ywitht he permissible gross com‐
bination weight. Fo
rv ehicles wit hapermissible gross vehicle
we ight of 11030 lbs (5003 kg),th ep ermissible
gross combination weight is less than thes um of
th ep ermissible gross vehicle weight plus thep er‐
missible trailer load. If either thev ehicle or the
traile risfully laden, thep ermitted gross vehicle
we ight or thep ermitted trailer load values are
re duced accordingly .Inthis case, youm ayonly
partially load thet railer or thev ehicle.
The gross trailer weight (G TW)isc alculated by
addin gthe weight of thet railer tothew eight of
th el oad and equipment. If thet railer is equipped
wit has eparat ebraking sy stem, then them axi‐
mum gross trailer weight is 500 0lbs (226 8kg) or
75 00 lbs (3402 kg).
Th em aximu mpermissible trailer dr awbar nose‐
we ight on theb all head is 500 lbs (22 7kg) or
75 0lbs (340 kg). Ho wever,th ea ctual trailer dr
aw bar nose weight mus tnotexc eed thev alue
given on thet railer towh itch or trailer identifica‐
tion plates. Wher ethe values dif fer, th el owest
va lue alw aysa pplies.
The permissible gross weight forv ehicle-trailer
combination s(GCWR)isc alculatedbyaddin gthe
gross weight of thet railer totheg ross vehicle
we ight including adrive r's weight of appr ox‐
imatel y150 lbs (68 kg). The maximum permissi‐
ble gross combination weight is vehicle-specific
and equipment-dependent .When driving wit ha
trailer ,you should no texceed them aximum per‐
mitted permissible gross weight forv ehicle-trailer
combination s(GCWR).
The permissible values, whic hmustn otbe exc ee‐
ded, can be found in your vehicle documents and
on thei dentification plates of thet railer tow
hitch, thet railer and thev ehicle. The values
appr ovedbyt he manufacturer can also be found
in the" Tech nical data" section. Wher ethe values
dif fer, th el owest value alw aysa pplies.
Loading thet railer
Use adrawbar nose weight that is as close as
possible tothem aximum permissible nose‐
we ight .Don otundershoo tthe minimum permis‐
sible nose weight .Otherwise, thet railer may
become de tach ed.
R Distribut ethe load over thev ehicle and the
traile rsoasn ot toexceed either them axi‐
mum permissible values fort he gross vehicle
we ight rating (GVWR )and gross traile rweight
(G TW ),th ep ermissible gross weight forv ehi‐
cle-trailer combination s(GCWR), nor them ax‐
imum permissible gross axle weight rating
(GAWR )and traile rdrawbar nose weight (TWR)
of your vehicle.
R Addthe rear axle load tothet railer dr awbar
nose weight of thet railer dr awbar on theb all
head (TWR). This will ensur ethat youdon ot
exc eed thep ermissible gross axle weight rat‐
ing (G AWR).
R Addthe vehicle load tothet railer dr awbar
nose weight of thet railer dr awbar on theb all
head (TWR). This will ensur ethat youdon ot
ex ceed thep ermissible gross vehicle weight
ra ting (GVWR).
Che cking thev ehicle and trailer weight
R Mak esuret hat thew eights of thet ow ing
ve hicle and thet railer comply wit hthe maxi‐
mum permissible values. Ha vethec ar/t railer
combination weighed on acalibrated weigh‐
ing machine. The car/trailer combination Driving and parking
167
comprise
sthe towing vehicle including driver,
passenger sand load as well as thel aden
trailer.
R Chec kthe maximum permissible gross axle
we ight rating of thef ront and rear axles
(GAWR), theg ross trailer weight (G TW),the
permissible gross weight forv ehicle-trailer
combination s(GCWR)a ndthet railer dr awbar
nose weight rating (TWR). Tr
aile rpower supp ly Incor
rect cabling of thec onnector plug ma yinter‐
fe re wit ho ther electronic sy stems in thev ehicle.
Mercedes-Ben ztherefor erecommends that you
ha ve thec abling of thec onnector plug car ried
out at aqualified specialis tworks hop.
Yo uc an connec taccesso ries up toam aximum of
24 0Wtot he permanent po wersupply .Don ot
ch arge atrailer batter yusingthe po wersupply.
Yo ur vehicle ma ybeequipped wit harangeof
electrica lequ ipment fort railer operation.
Depending on your trailer ,you ma yneedan
adap terf or thee lectrical connection between the
traile rand your vehicle.
The trailer soc ketofy ourvehicle is equipped with
ap ermanent po wersupply at thef actor y.
The permanent po wersupply is suppliedv ia
trailer soc ketp in4.
No tethat thet railer's permanen tpowe rsupp lyis
no ts witched of fwhen thev ehicle's on-board
electrical sy stem voltag eisl ow.This could com‐
ple tely discharg eyour vehicle's star terb atter y.
Fu rther information on thee lectrical equipment
cur rentl yins tal led on your vehicle and on ins tal‐
ling thet railer electrics can be obtained at a
qu alified specialis tworks hop. 16 8
Driving and pa rking
Example: jump-s
tart connection
% Right-hand driv
evehicle: thej ump-s tart
connection ma ybeonthe opposit eside. #
Remo vethec ove rfromt he positiv eterminal
on thed onor batter y. #
First,c onnec tthe positiv eterminal clam pof
th ej umper cables/charging cables tothe
positiv eterminal of theo ther vehicle's bat‐
te ry. #
With positiv eterminal clamp 2ofthe
jumper cable/charging cable ,slide ther ed
pr otectiv ecap on jump-s tarting connection
1 bac kwithac lockwise turn. #
Connect theo ther positiv eterminal clam pto
th ep ositiv eterminal of jump-s tart connection
1. #
During starting assistance: star tt he engine
of thed onor vehicle and le titrun at idle
speed. #
Firs t, connect then egativ eterminal clam pof
th ej umper cable/charging cable tothen ega‐
tiv ep ole of thed onor batter y. #
Connec tthe other negativ eterminal clam pof
th ej umper cable/charging cable toag round
po int on your ow nv ehicle (a bar emetal part
in thee ngine compartment). #
During starting assistance: star tt he engine
on your ow nv ehicle. #
When charging: star tt he chargin gprocess. #
During starting assistance: lett he engine
ru nf or afew minutes. #
During starting assistance: beforediscon‐
necting thej umper cable, switc honanelec‐
trical consumer on your ow nv ehicle, e.g. the
re ar wind owheater or lighting. When
thes tartin ga ssis tance/charging proces sis
comple te: #
Remo vethej umper cables/charging cables
in reve rseo rder:first then egativ eclam pfrom
th eg round point in thee ngine compartment,
th en then egativ eclam pfromt he donor bat‐
te ry.T he nt he positiv eclam pfromt he posi‐
tiv et erminal of jump-s tart connection 1,
th en thep ositiv eclam poft he donor batter y.
The redp rotectiv ecap springs bac ktoits ini‐
tial position when positiv eterminal clamp 2
is disconnected from jump-s tarting connec‐
tion 1.
Yo uc an obtain fur ther information at aqualified
specialis tworks hop. Installing/removing
thef loor co vering (vehi‐
cles with rear wheel drive) &
WARNING Risk of accident du eto
object sinthe driver's foot we ll
Object sinthe driver's foot we ll ma yimp ede
pedal tr avel or bloc kadepressed pedal.
This jeopardizes theo perating and road
saf etyoft hevehicle. #
Stow all object sinthevehicle securely
so that they canno tget intot he driver's
fo ot we ll. #
Ensur efloor mats and carpets cannot
slip and pr ovide suf ficient room fort he
pedals. #
Do no tlay multiple floor mats or carpets
on topofo ne ano ther. #
Switc hoffall electrical consumers. 204
Breakdown assis tance
*
NO
TEDama gedue toincor rect connec‐
tion of thet ow bar #
Onlyconnec tthe towr ope or towb arto
th et ow ing eyes. %
Yo
uc an also secur ethe towing devic etothe
trailer hitch.
* NO
TEDama geand risk of accident when
to wing wit hatow ro pe Ther
eisar isk of an accident if youdon ot
obse rves afet ya nd pr otectiv emeasures when
to wing using atow ro pe.
Obser vethef ollowing points when towing
wit hat ow ro pe: #
Secur ethe towr ope on thes ame side
on bo thvehicles, if possible. #
Mak esuret he towr ope does not
exc eed thel egally prescribed length. #
Mar kthe towr ope in them iddle, e.g.
wit haw hitec loth (30 x30c m). This
makes other road user sawarethat a
ve hicle is being towe d. #
Obser vetheb rake lamps of thet ow ing
ve hicle while driving. Alw aysm aintain a
dis tance that ensures thet ow ro pe does
no ts ag. #
Do no tuse steel cables or chains to tow
yo ur vehicle. Otherwise, youc oul dd am‐
ag et he vehicle. #
Deactivat eautomatic locking (/ page50). #
Do no tactivat ethe HOLD function. #
Deactivat ethe tow- aw ay alar m(/pag e62). #
Deactivat eActiv eBrake Assi st (/ pag e150). #
Vehicles with automatic transmission:
shif tthe automatic transmission toposition
005C. #
Release thep arking brake. &
WARNING Risk of accident du etolimi‐
te ds afet y-re lated function sduring the
to wing process
Saf ety-re lated function sarelimited or no lon‐
ge ra vailable in thef ollowing situations:
R thei gnition is switched off.
R theb rake system or po wersteering sys‐
te mism alfunctioning.
R thee nergy suppl yorthe on-boar delectri‐
cal sy stem is malfunctioning.
When your vehicle is then towe da way,signifi‐
cantly mor eeffor tm aybe requ ired tosteer
and brak ethan is normally required. #
Use atow bar. #
Mak esuret hat thes teering wheel can
mo vefreely ,befor etow ing thev ehicle
aw ay. *
NO
TEDama gedue toexc essiv etractive
po wer If
yo up ullaway sharpl y,thet ractiv epower
ma ybet oo high and thev ehicles could be
damaged. #
Pull away slowl yand smoo thly. To
wing avehicle wit hthe front or rear axle
ra ised *
NO
TEDama gewhen thei gnition is
switched on If
yo ul eave thei gnition switched on when
to wing thev ehicle wit hthe front or rear axle
ra ised, ESP ®
actuation can damag ethe brake
sy stem. #
The ignition mus tbeswitched off. *
NO
TEDama gedue toincor rect remo val
or ins tallation of thep ropeller shafts When ins
talling thep ropeller shafts, they can
be damaged if youdon otuse ne wscrew s.
Alw aysu se ne wscrew sw hen ins talling the
propeller shafts.
Onl yhave thep ropeller shafts ins talled or
re mo vedbyq ualified, skilled personnel. Breakd
owna ssis tance 209