clogging
.Deposits ma yalsof ormont he fuel
injector .This ma yreduce thee ngine output.
Unburned fuel can getint ot he oil pan. This
causes thee ngine oil le veltor ise. This can
cause engin emechanical damage.
Obser vethef ollowing points to avoid damage
and reducing thee ngine output: #
Fill up wit hfuels wit hbio-diesel content
of 5% (ULSD) or less, whene verp ossi‐
ble. #
Regular lych ecky our engine oil le velif
yo uu se B2 0fuels on aregular basis. #
Strictl yfollo wthe oil chang einter vals
qu oted in thei nstrument clus tera nd
within your Main tenance Bookl et. #
Use only engine oils and filters
appr ovedfor use in your vehicle. #
Ifyo udon otplan todriv eyour vehicle
fo rs everal weeks, comple tely fill the
fuel tank in ad vance wi thULSD fuel. Fo
rm orei nformation, consult theg asstation
st aff. The identification of fuels wit hbio-diesel
con tent (ULSD or B20) mus tbec lear .Ift he iden‐
tification is no tclear ,don otrefuel .Don otrefuel
wit ha nyfuel sthat ha venotb eena pprove df or
yo ur vehicle.
Ta nk content and fuel reser ve
The total capacity of thef uel tank ma yvary,
depending on thev ehicle equipment.
Ta nk content and fuel reser ve Gasoline engine
Total capacity
M2 74 approx.22g al
(85 liters) Diesel engine
Total capacity
OM6 51/OM642 appr ox.2 4.5 gal
(93 liters) Gasoline engine Of whic
hreser ve
fuel
Model switha ppr ox.
19 gal(85 l)tot al
capacity appr
ox.5g al
(1 9l iters) Diesel engine Of whic
hreser ve
fuel
Model switha ppr ox.
20 gal(93 l)tot al
capacity appr
ox.5g al
(1 9l iters) DEF
Note
sonD EF
Obser vethen otes on operating fluids
(/ page325).
DE Fisaw ater-soluble fluid fort he exhaus tgas
af te rtre atment of diese lengines.
* NO
TEDama gecaused byadditives in
DE Forbyd iluting DEF The DEFe
xhaustgasa ftertreatment sy stem
could be destr oyed bythef ollowing:
R Additives in DEF
R Dilutin gDEF #
Onlyuse DEFina ccordance wit hISO
222 41 . #
Do no tmix additives. #
Do no tdilut eD EF. *
NO
TEDama geand malfunctions caused
by impurities in DEF Impurities in DE
Fresult in thef ollowing:
R Higher emission values
R Damag etothe catalytic con verter
R Engine damage
R Malfunctions in theD EFexhaus tgas
af te rtre atment sy stem #
Avoid impurities in DEF. +
ENVIRONMENTAL
NOTESoiling wi th
DEF DEF
residue cr ystallizes af ters ome time and
st ain thea ffected sur faces. 328
Tech nica ldata
#
Immedia tely rinse su rfaces that com ein
con tact wi thDEF when filling wit hwater
or remo veDEF wi thad am pcloth and
col dw ater.
If DEF has alread ycrystallized, clean using a
spon geand col dwater. If
yo uo pen theD EFtank ,small amounts of
ammoni avapor ma ybereleased. Do no tinhale
an ya mmonia vapor that ma ybereleased. Fill the
DEF tank only in well-ventilated areas.
DEF consum ption and filling capacity
DEF consum ption
Lik efuel consum ption, DE Fconsum ption is highly
dependent upon driving stylea nd operating con‐
ditions. DEFc onsumption is usuall ywithin a
ra ng eof0a nd10%oft he fuel consum ption. If
necessar y,DEF mu stbe refilled in acco rdance
wit hthe instructions when ther efill messag eis
displa yedint he instrument clus ter.This ma yalso
be necessar ybetwe en thes cheduled mainte‐
nance.
To tal capacity of DEF tank Ve
hicl eT otal capacity
All model s5 .8gal(22 liter s) Exhau
stgasa ftertreatment
The exhaus tgas af tertre atment sy stem mus tbe
operated in conjunction wit hDEFif it is tofunc‐
tion cor rectl y.
If yo uo perat ethe vehicle without DEF or with
emissions-rele vant malfunctions ,the legal MOT
appr oval is in validated. Youw illthen probably no
longer be permitted tooperat ethe vehicle on
public roads.
It ma ybei mproper or punishable in som ecoun‐
tries tooperat eavehicle that uses no DE Forone
th at does no tcompl ywitht he specifications of
th ese operating instructions.
Engine management monitor sthe exhaus tgas
af te rtre atment component sfor compliance with
emiss ions la wsand regulations. If youa ttem ptto
operat ethe vehicle without DEF ,withd iluted DEF
or wit hadiffe re nt reducing agent ,this will be
de tected bythee ngine management sy stem.
Other emissions- releva nt malfunctions ,e.g.
me tering malfunctions or sensor er rors,a re also
de tected and log ged. The engin
emanagement sy stem subsequently
pr eve nts thee ngine being restar teda fter issuing
aw arning message.
Therefor eadd DE Ftank regular lyduring vehicle
operation or ,atthe latest, af terr eceiving thef irst
wa rning messag eviathei nstrument clus ter. Engine oil
Note
sone ngine oil
Obser vethen otes on operating fluids
(/ page325). *
NO
TEEngine damag ecaused byan
incor rect oil filter ,incor rect oil or addi‐
tives #
Do no tuse engine oil soroilfilter sother
th an those whic hmeetthe specifica‐
tions necessar yfor thep rescribed
service inter vals. #
Do no talter thee ngine oil or oil filter in
order toachie velonger chang einter vals
th an presc ribed. #
Do no tuse additives. #
Have thee ngine oil changed af tert he
prescribed inter vals. Mercedes-Benz
recommends having theo il
ch anged at aqualified specialis tworks hop.
Fu rther information on engine oil and oil filter:
R intheMBS pecification sfor operating fluidsat
http://be vo.mercedes-benz.com (b yentering
th ed esignation)
R ataq ualified specialis tworks hop Te
ch nica ldata 329
Quality and capacity of engine oil
%
The container
softhevarious engine oils are
mar kedw itht he ACEA (Association of Euro‐
pean Automotiv eManufacturers) and/or API
(America Petroleu mInstitu te)c lassifications.
Onl yuse appr oved engine oils that cor re‐
spond totheMBS pecification sfor operating
fl uids and thep rescribed ACEA and/or API
classi fications name dbelow .Engine oil sof
ot her grades ar enotpermissible and can
re sult in thel oss of theN ew Vehicle Limited
Wa rrant y.The use of other engine oils not
appr ovedfor diesel engines can damag ethe
diesel particulat efilter (DPF).
MB- Freigabe orMB-App roval Gasoline engine MB-F
reigabe orMB-
Appr oval
M2 74 229.5Diesel engine
sMB-Freigabe orMB-
Appr oval
OM642/OM65 1228.51,229.3 1,
229.5 1,229.52 If
th ee ngine oils lis tedint hetable ar enotavaila‐
ble, youm ayadd amaximum 1.1USqt( 1.0l iter)
of thef ollowing engine oils once only:
R Vehicles with agasoline engine: MB-Frei‐
ga be or MB-Appr oval 229. 3orACEA A3/B4
R Vehicles with adiese lengine: MB-Freigabe
or MB-Appr oval 228.5, 229. 3or229.5
Multig rade engin eoils of thep rescribed SAEc las‐
si fication (viscosity) ma ybeuseda llye ar round,
ta king theo utside temp eratur eintoa ccount.
Vi scosity of thee ngine oil
* NO
TEEngine damag eduetoincor rect
SA Ec lassi fication (viscosity) of the
engine oil If
th eS AE classi fication (viscosity) of the
engine oil added is no tsuitable forp rolonged
lo wo utsid etemperatures, it ma ycause
engine damage.
The temp eratur ereadings of theS AE classi fi‐
cation ar ealway sb ased on fresh oil. Engine
oil ages when driving as aresult of soo tand
fuel residue. The characteristic sofengine oil
de teriorat esignificantl yatlowoutside tem‐
peratures. #
Use an engine oil of thea ppropriat eSAE
classi fication at lo woutsid etempera‐
tures. #
Use oil fora ll-year-round operation. The
temp eratur ereadings of theS AE classi fica‐
tion ar ealway sb ased on fresh oil. The temp era‐
tur ec haracteristics of thee ngine oil, especially at
lo wo utside temp eratures, can de teriorat esignifi‐
cantly due toagin gwhen driving.
Therefore, Mercedes-Ben zrecommends that you
ch ang ethe engine oil befor ethe star toft he cold
season. Onl yuse an appr oved engine oil in the
prescribed SAEc lassi fication fort his purpose. The viscosity indicates
thef lowc haracteristics of
af luid. With rega rd toengine oil, ahigh viscosity
is synonymous wit hthic kliquid and alow viscos‐
ity wit hthin liquid. Depending on theo utside
te mp eratures, select thee ngine oil according to
th eS AE classi fication (viscosity) .The table sho ws
th eS AE classi fications tobe used. The lo wtem‐
peratur echaracteristics of engine oils can de teri‐
orat esignificantl yduring operation due toaging
and soo tand fuel acc retion, fore xamp le.Aregu‐
lar oil chang ewithana pprove dengin eoil in the
appropriat eSAE classi fication is therefore
stro ngly recommended.
Ad ditive
* NO
TEEngine damag eduetouse of addi‐
tives in thee ngine oil The use of additional additives in
thee ngine
oil can damag ethe engine. #
Do no tuse an yadditional additives in
th ee ngine oil. Miscibility of engine oil
The benefits of high-quality engine oils are
re
duced bymixing oil.
We recommend that youo nly use engine oil of
th es ame grade and SAEc lassi fication as theo il
fi lled at thel asto ilch ange. If, in exceptional 330
Tech nica ldata
Gene
rald rivin gtips .......................... 106
Hyd roplaning .................................... 11 0
Ne wb rake discs and brak epads/
linings ............................................... 109
Pa rking brak e................................... 109
We troad sur faces ............................ 109
Dr ow siness de tection
see ATTENTION ASSIST
DSR (Downhill Speed Regulation)
Ac tivating/deactivating .................... 121
No tes. ............................................... 121
Dual-zone au tomatic climat econ‐
trol (control panel) ................................. 95E
E10 ....................................................... .326
EBD (electroni cbrake forc ed istri‐
bution) .................................................. .140
ECOd isplay
Fu nctio n............................................ 11 4
Re setting. ......................................... 171
Electric pa rking brake .......................... 13 5
App lying automaticall y..................... 13 5
Applying or releasing manuall y......... 13 6
Emer gency braking ........................... 137
No tes. ............................................... 13 5
Re leasing automaticall y................... .136
Electric slidin gdoor
Fu nctio n............................................. 47
Opening wit hbutton ........................... 48
Opening wit hthe door handle ............ 49
Opening/closing wit hthe key. .......... .49
Prog ramming thek ey ........................ .49
Re setting. ........................................... 50
Un lockin gmanuall y........................... .50
Electrical closing assist Notes. ................................................. 47
Electrical consum ption
Ke y. .................................................... 43
Electrical fuses see Fuses
Electrical step
Emer gency release ............................ .53
Extending/r etra cting .......................... 53
Fu nctio n............................................. 53
Obs tacle ............................................. 53
Pr eve nting extending ......................... .53
Electronic Stability Prog ram
see ESP ®
(Electronic Stabilit yProgram)
Elect ronics ............................................ 322 Emer
gency
Assis tance overview. .......................... 16
Fir st-ai dk it (so ftsided) .................... 278
Saf etyv est. ....................................... 278
Wa rning lam p................................... 278
Emer gency braking
Elect ricp arkin gb rake ...................... .137
Manual parking brak e....................... 13 5
Emer gency call sy stem
Au tomatic emergency call ............... .279
Informatio n....................................... 278
Manual emer gency cal l..................... 279
Overvie w.......................................... 278
Emer gency engine start ..................... .290
Emer gency operation mode
St artin gthe vehicle .......................... 105
Emer gency Tensioning Devices
Ac tivation ........................................... 30
En gaging driv eposition (automatic
transmission) ........................................ 11 8
Engaging neut ral(automatic trans‐
mission) ................................................ .117
Engaging reve rseg ear ........ .................. 11 7
Engaging/disengaging LOWR ANGE ...12 0
Engine Engin enumber ................................ .323
Jump -star ting .................................... 281
Pa rking (s tart/s topb utton) .............. 13 3
Problems .......................................... 12 8
St artin g(in emer gency operation
mode) ............................................... 105
St artin g(start/ stop button) .............1 05
Engine data Showing .......................................... .205
Engine electronics (no tes) ...................3 22
Engine number ..................................... 323
Engine oil .............................................. 267
Ad ditiv e........................................... .329
Checkin gthe oil le vel(on-board
computer) ........................................ .267
Checkin gthe oil le velw ithad ip‐
st ick. ................................................ 266
Fillin gcapacity ................................. 330
To pping up ........................................ 267
Engine output Notesonc hanges ............................... 24
ENR (electronic le velc ontrol) .............122
Fu nctio n........................................... 12 2
Lo we ring thev ehicle .........................1 24
Manually inflating air bello ws........... 12 5 Index
377