#
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 vehicle mus tbeoperated wit hDEF if the
ex haus tgas af tertre atment sy stem is tofunction
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. The vehicle could be pro‐
hibited from publicr oad usebyan of ficia lordi‐
nance.
It ma ybei mprop eror punishable in some coun‐
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
(/ page254). *
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 258
Tech nica ldata
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* *R
ecommended forl owest possible fuel con‐
sum ption (lo westSA Ev iscosity class in ea ch
case ;obser vepossible restrictions of the
appr ovedSAE viscosity classes).
To achie vethel owest possible fuel consum ption,
it is recommended touse thee ngine oil specifica‐
tions mar kedint hetable fort he lo west SAEv is‐
cosity class. Obser veanyp ossible restrictions of
th ea ppr ove dSAE viscosity classes.
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. Te
ch nica ldata 259
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
cases, engine oil of thet ype in thee ngine is not
av ailable, use ano ther appr ovedm ineral or syn‐
th etic engin eoil.
Ve hicles with adiese lengine: ifth eg rade is
no ta vailable, youm ayalso refill wit hengin eoils
acco rding toMB-F reigabe or MB-Appr oval 228.5,
229. 3or2 29.5.Therefill qu antity is then limited
to maximu m1.1US qt (1.0 liter).
Yo um ustthen ha vean oil chang ecarried out at
th ee arlies tpossible opportunit y.
Ve hicles with agasoline engine: ifth eg rade is
no ta vailable, youm ayrefill wit hengin eoils
acco rding toMB-F reigabe or MB-Appr oval 229.3
or AC EA A3/B4. The refill qu antity is then limited
to maximu m1.1US qt (1.0 liter).
Yo um ustthen ha vean oil chang ecarried out at
th ee arlies tpossible opportunit y.
Engine oils ar ediffe re ntiated according to:
R Engine oi lbrand
R Grad e(MB -Fre igabe or MB-Appr oval)
R SAEc lassi fication (viscosity)
Oil chang einter val
The on-boar dcomputer automatically sho ws the
dat eoft he next oil chang easane vent messa ge
on thed ispla y.
Mercedes-Benzr ecommends havin gthe oil
ch anged at aqualified specialis tworks hop. Engine oil capacities Engine
Engine oil
M2 74 Approx. 11.1 qt
(10.5 liters)
OM642 Approx.1 3.2 qt
(12.5 liters)
OM65 1(rear wheel
drive) Appr
ox.1 2.2 qt
(1 1. 5l iters) Information on oil consum
ption
Depending on thed riving style, thev ehicle con‐
sumes amaximum of 1.1USq t(1.0l iter) of
engine oil per 620 mile s(10 00 km).
In thef ollowing cases, oil consum ption ma yalso
exc eed this limit:
R The vehicle is ne w.
R Youu sethev ehicle mostl yunder arduous
conditions.
R Youd rive frequent lyat ah igh engine speed.
Re gular maintenance is aprere quisit efor favo ra‐
ble consum ption figures. Youc an only asses sthe
oil consum ption af teral ong journe y.Chec kthe
oil le velint he engine regularly ,e.g. weekl yor
eve rytime your efuel. Note
sonb rake fluid Obser
vethen otes on operating fluids
(/ page254). &
WARNING Risk of an accident du eto
va por poc kets form ing in theb rake sys‐
tem
The brak efluid con stant lyabsorbs moisture
from thea ir.T his lo werstheb oiling point of
th eb rake fluid. If theb oiling point is tool ow,
va por poc kets ma yformint he brak esystem
when theb rake sa reapplied hard.
This causes theb raking ef fect to be impaired. #
Have theb rake fluid rene we datt he
specified inter vals. *
NO
TEDama getopaint, plastic or rubber
by brak efluid Ther
eisar isk of damag etoproperty if brake
fl uid comes int ocontact wi thpaint, plastic or
ru bber. 260
Tech nica ldata
#
Mak esuret hat no windshield washer
concentrat espills out next tothef iller
opening. *
NO
TEDama getothee xterio rlighting
due tounsuitable windshield washer fluid Uns
uitable windshield washer fluid ma ydam‐
ag et he plastic sur face of thee xterio rlighting. #
Onlyuse windshield washer fluid which
is also suitable foru se on plast ic surfa‐
ces, e.g. MB SummerFit or MB Winter‐
Fit. *
NO
TEBlocked spr aynozzle scaused by
mixing windshield washer fluids #
Do no tmix MB SummerFit and MB Win‐
te rFit wit hother windshield washer flu‐
ids. Do no
tuse distilled or de-ionize dwater .Other‐
wise, thef ill le vels ensor ma ygiveaf alse reading.
Information on thew indshield washer fluid
Re commended windshield washer fluid:
R abovefreezing point :e.g. MB SummerFit
R below freezing point :e.g. MB WinterFit
Mixin gratio
Fo rthe cor rect mixing ratio ,refer tothei nforma‐
tion on thea nti-freeze container.
Mix thew ashe rfluid wit hwindshield washer fluid
all year round.
Fi lling capacities
Wi ndshield washer sy stem
Wa sher fluid
5.8 qt (5.5 l) Re
frigerant Note
sonr efrigerant
Obser vethen otes on operating fluids
(/ page254).
% Yo
ur vehicle's climat econt rols ystemc an be
fi lled wit hR‑134a refrigerant. The refrigerant
R‑134a contains fluorinated greenhouse gas.
If yo ur vehicle is filled wit hR‑134a refrigerant, the
fo llowing informatio napplies: *
NO
TEDama gecaused byincor rect refrig‐
erant If
th ei ncor rect refrigerant is used ,this can
damag ethe climat econt rols ystem. #
Use onl yR‑134a refrigerant or theP AG
oil appr ovedfor your vehicle by
Mercedes-Benz. #
The appr ovedPAG oil ma ynotbe mixed
wit ha ny ot herPAGo ilth at is not
appr ovedfor R‑134a refrigerant. Maintenance
work,s uc hasa dding refrigerant or
re placing components, ma ybecarried out only
by aq ualified specialis tworks hop. All thea pplica‐
ble regulations relatin gtot his and theS AE J639
st andar dmustbea dhered to.
All workon thec limat econt rols ystems hould
alw aysbec arried out at aqualified specialist
wo rkshop. Example:
refrigerant warning label
1 Warning symbols
2 Refrigerant capacity
3 Applicabl estandards
4 PAGo il par tnumber
5 Refrigerant type
Wa rning symbols 1refertot hefollowing:
R Potential dangers
R The per form anc eofm aintenance workat a
qu alified specialis tworks hop Ve
hicl edata Information on
vehicl edimensions The
following section con tains impor tant tech ni‐
cal da tafory our vehicle. Your vehicle documents
contain fur ther vehicle-specific and equipment-
dependent tech nica ldatas uchasv ehicle dimen‐
sions and weights. 262
Tech nica ldata
Displa
ymessages
Possible causes/consequences and 0050 0050Solutions
Û
ATTENTION ASSIST:
Take aBreak! *A
TTENTION ASSIS Thas de tected fatigue or increasing inattenti ve‐
ness on thed rive r's par t(/pag e156). #
If necessa ry,t ak eab reak. Engine
Displ
aymessages
Possible causes/consequences and 0050 0050Solutions
00D4
Fuel Level Low *T
he fuel suppliesh avereached ther eser veleve l. #
Refuel.
009E
Replace Air Filter *
Ve hicles with adiese lengine: The engine air filter is clogged and
mus tber eplaced. #
Visit aq ualified specialis tworks hop.
00AC *T
hefanm otorisd efective. #
Without ahigh engine load, continue tothen eares tqualified
specialis tworks hop. Ensur ethat thec oolant temp eratur edis‐
pla yremain sbelo w2 48 °F (120 °C).
003A Check Fuel Filter *T
hewatert hat has accumulate dinthewate rsepa rato rh as reached
th em aximum le vel. #
Drain thew ater separator (/ page199).
00B3 Engine Oil Level Cannot
Be Measured *T
he electrical connection totheo il le vels ensor has been inter rup‐
te dort he oil le vels ensor is faulty. #
Visit aq ualified specialis tworks hop.
00B2
Engine Oil Pressure Stop
Switch Off Engine *D
ispla ymessag efor cer taine ngines only:
The engine oi lpressur eistoo lo w.
* NO
TEEngine damag ecaused bydriving wit hinsuf ficient
engine oil pressu re #
Avoid driving wit hinsuf ficient engine oil pressure. #
Stop in asafel ocation immediately .Donotcontinue driving. #
Consult aqualified specialis tworks hop. 278
Displaymessa gesa nd warning and indicator lamps
Displa
ymessages
Possible causes/consequences and 0050 0050Solutions
00B2
Check Engine Oil Level
(Add 1Liter) *T
he engine oil le velh as fallen tothem inimum le vel.
* NO
TEEngine damag ecaused bydriving wit hinsuf ficient
engine oil #
Avoid long journe yswit hinsuf ficient engine oil. #
Che ckthee ngine oil le velatt he next fuel stop.
Re fill engin eoil (/ page195).
Obser vethen otes on engine oil (/ page258).
00B2 Engine Oil Reduce Oil
Level *D
ispla ymessag efor cer taine ngines only:
The engine oi llev el is tooh igh.
* NO
TEEngine damag ecaused bydriving wit hexcess engine
oil #
Avoid long journe yswit he xcess engine oil. #
Visit aq ualified specialis tworks hop immediately and ha vethe
engine oil suctioned off.
00B2
Engine Oil Level Low
StopV ehicle Turn
Engine Off *D
ispla ymessag efor cer taine ngines only:
The engine oi llev el is tool ow.
* NO
TEEngine damag ecaused bydriving wit hinsuf ficient
engine oil #
Avoid long journe yswit hinsuf ficient engine oil. #
Stop in asafel ocation immediately .Donotcontinue driving. #
Switc hoffthee ngine. #
Chec kthe engine oil le vel.
Ad de ngin eoil (/ page195).
Obser vethen otes on engine oil (/ page258).
00B2 Check Engine Oil At
Next Refueling *T
he engine oil le velh as fallen tothem inimum le vel.
* NO
TEEngine damag ecaused bydriving wit hinsuf ficient
engine oil #
Avoid long journe yswit hinsuf ficient engine oil. #
Che ckthee ngine oil le velatt he next fuel stop.
To pupe ngineoil (/ page195).
Obser vethen otes on engine oil (/ page258).
003D Stop Vehicle Leave
Engine Running *T
he battery's charge leve list oo lo w. #
Stop in asafel ocation immediately .Donotcontinue driving! #
Letthe engine run. #
Do no tcontinue driving unti lthe displa ymessag egoes out. Displa
ymessages and warning and indicator lamps 279
1,
2, 3. ..
3-zone automatic climat econtrol
(operating unit) .................................... .101
12 Vs ocket
see Soc ket(12 V)
11 5Vs ocket
see Soc ket(11 5V)
360° Camera Care.................................................2 02A
ABS (Anti-lo ckBrakin gSystem) .......... 14 6
Ac celeration
see Usin gkickdown
Ac tivating/deactivatin gthe HOLD
function ................................................. 15 5
Ac tiv eB rake Assi st.............................. 14 8
Fu nction/no tes. ............................... 14 8
Setting .............................................. 15 0
Ac tiv eD ista nce Assis tDISTR ON IC ..... 15 2
Callin gupas peed........................... .153
Fu nctio n........................................... 15 2
Increasing/decreasing speed ........... 15 3
Re quirements .................................. .153
St eering wheel buttons ..................... 15 3
St oring aspeed ................................ 15 3
Switching off/deacti vating ............... 15 3
Switching on/activating ................... 15 3
Sy stem limitations ............................1 52
Ac tiv eL aneK eeping Assist ..................161
Ac tivating/deactivating .................... 16 2
Fu nctio n............................................ 161
Sy stem limitations ............................1 61
Tr ailer operation ................................ 161
Ad aptiv ecruise control
see ActiveD ista nce Assi stDISTRONIC
Ad aptiv eHighbeam Assist
Fu nctio n............................................. 86
Switching on/o ff................................ 86
Ad d-on equipment .................................. 21
Ad d-on equipment guidelines ................21
Ad ditional tur nsignal light (all-
wheel driv evehicles) ............................. 91
Ad diti ve ................................................. 258
DEF ........................................... 136, 257
Engine oil ......................................... 258
Ad diti ves
Fu el .................................................. 255 Ad
diti ves( DEF)
see DEF
Ad diti ves( engine oil)
see Additive
Ad diti ves( fuel)
see Fuel
Ad justin gthe volume .......................... .180
Ad justin gthe volume
see Radio
ADR (working speed control) Adjusting .......................................... 16 2
Fu nctio n........................................... 16 2
Switching on/of f.............................. 16 2
Af ter-sales service center
see ASS YSTP LUS
Air nozzles see Air vents
Ai rv ents ....................................... .104, 105
adjustin g(front) ................................ 104
Ad justing (roof) ................................. 105
Re ar passenger compartment .......... 105
Airbag ...................................................... 35
Ac tivation ........................................... 32
Fr ont airbag (driver ,fro nt
passenger) ......................................... 35
Ins tallation locations .......................... 35
Overvie w........................................... .35
Pr otection impaired ............................36
Pr otection pr ovided ............................ 35
Side airbag ........................................ .35
Wi ndo wcurtain airbag ........................ 35
Alar msystem
see ATA( Anti -Thef tAlarms ystem)
Alertness assistant see ATTENTION ASSIST
All-wheel drive Engaging ...........................................1 25
Engaging/disengaging ..................... .125
LO Wr ang e........................................ 12 6
No tes. ............................................... 124
Animals Pets in thev ehicle .............................. 45
Anti-loc kbraking sy stem
see AB S(Anti-loc kBrakin gS ystem)
Anti-skid chains
see Sno wchains
Anti-thef tAlarms ystem
see ATA( Anti -Thef tAlarms ystem)
Anti-thef tprotection
Immobilizer ........................................ .61300
Index
Decla
ratio nofc onform ity
Ve hicle componentsw hichreceive
and/or transmit radio wav es .............. 24
Wi reless vehicle components. ............24
DEF ................................................ 136, 257
Ad ditiv e................................... .136, 257
Displ aying thef ill le vel. .................... .137
Filling capacity ................................. 258
Pu rity ........................................ 136, 257
Re filling ............................................ 137
Definitions (ti resa nd loading) ............ 237
Diagnostics connection .........................25
Diesel Lowo utside temp eratures ............... 255
No tes. .............................................. 255
Diesel particulat efilter
Au tomatic rege neration .................... 12 0
Displ aying load ................................ .120
No tes. ............................................... 12 0
Digita lspe edome ter............................. 173
Dimming thei nsid erearvi ewmirror .... 98
DIREC TSELECT lever ............................ 12 2
Engaging driv eposit ion. ................... 12 3
Engaging neutral ............................... 12 2
Engaging pa rkposition automati‐
call y................................................. .123
Engaging reve rseg ear ...................... 12 2
Fu nctio n........................................... 12 2
Selecting pa rkposition .....................1 23
Dire ction indicator
see Indicator
Displa y(care) ........................................ 204
Displa y(on-boar dcompu ter) ............... 171
Displa ymessage .................................. 269
Callin gup( on-boar dcompu ter) ........ 269
No tes. .............................................. 269
Displa ymessages
00AC ............................................... 278
00B2 ---mph................................... 275
003D 12VB atter ySee Operator's
Manual .............................................2 80
0099 Additiv eSystemF ault Emer‐
ge ncy Op.: XXX mphS ee Opera‐
to r's Manual .................................... .282
0099 Additiv eSystemF ault See
Operator' sManual .......................... .282 0099
Additiv eSystemF ault Starts
until Emerg. Op. :XXX See Opera‐
to r's Manual ..................................... 282
Û ATTENTION ASSIS TInopera‐
tive ................................................... 277
Û ATTENTION ASSIS T:Take a
Break! ............................................... 278
0049 AutoLam pFunction Inope ra‐
tive ................................................... 289
004D CheckBrake Fluid Le vel.......... 272
00AC CheckCoolan tLeve lSee
Opera tor's Manual ............................ 281
00B2 CheckEngine Oil AtNext
Re fueling .......................................... 279
00B2 CheckEngineO il Le vel(Add
1L iter) ............................................ .279
003A CheckFuel Filter ..................... 278
0049 CheckLeftL ow Beam (e xam‐
ple) .................................................. .289
0077 CheckTires ............................. 283
00B2 CheckWashe rFluid ................2 85
00AC Coolant TooH otStop Vehicle
Tu rn Engine Off ................................ 280
00CE Currently Un available Cam‐
er aD irty .......................................... .276
0025 Currentl yU navailable See
Opera tor's Manual ............................ 274
00E5 Currentl yU navailable See
Opera tor's Manual ............................ 274
00AF Don't Forget Your Key ............ .284
00B3 Engine Oi lLeve lCann otBe
Measured ......................................... 278
00B2 Engine Oi lLeve lLow Stop
Ve hicle Turn Engine Off .................... 279
00B2 Engine Oi lPressur eStop
Switc hOffEngine ............................. 278
00B2 Engine Oi lReduce Oil Le vel.....2 79
0075 Front Lef tMalfunction
Service Required (e xample).............. 270
00D4 Fuel Le velL ow ........................ .278
0024 Incline TooS teep See Opera‐
to r's Manual ..................................... 271
003B Inoperativ eBatter yLow .......... 286 304
Index