Ra
ting. You can find the Gross Axle Weight Rating
on the B-pillar on the driver's side.
Speed rating: the speed rating is pa rtof the tire
identification. It specifies the speed range for
which a tire is appr oved.
GV W (Gross Vehicle Weight): the Gross Vehicle
We ight includes thewe ight of theve hicle includ‐
ing fuel, tools, the spare wheel, accessories
ins talled, occupants, luggage and the trailer
dr aw bar nose weight if applicable. The Gross Vehi‐
cle Weight must ne verex ceed the Gross Vehicle
We ight Rating (GVWR) specified on the B-pillar on
th e driver's side.
GV WR (Gross Vehicle Weight Rating): the
GV WR is the maximum permitted gross weight of
th e fully laden vehicle (weight of theve hicle
including all accessories, occupants, fuel, lug‐
ga ge and the trailer dr awbar nose weight if appli‐
cable). The Gross Vehicle Weight Rating is speci‐
fi ed on theve hicle identification plate on the B-
pillar on the driver's side.
Maximum weight of the laden vehicle: the
maximum weight is the sum of theve hicle's curb
we ight, weight of the accessories, maximum load
and thewe ight of thefa ctory ins talled optional
equipment.
Kilopascal (kPa): metric unitfor tire pressu re.
6.9 kPa are the equivalent of 1 psi. Ano ther unit
fo r tire pressu reis bar. 100 kilopascals (kPa) are
th e equivalent of 1 bar.
Load index: in additiontothe load-bearing index,
th e load index may also be imprinted on the side‐
wa ll of the tire. This specifies the load-bearing
capacity more precisel y.
Curb weight: thewe ight of a vehicle with stand‐
ard equipment including the maximum capacity
of fuel, oil and coolant. It also includes the air-
conditioning sy stem and optional equipment if
th ese are ins talled on theve hicle, but does not
include passengers or luggage.
Maximum tire load: the maximum tire load is
th e maximum permissible weight in kilog rams or
lbs for which a tire is appro ved.
Maximum permissible tire pressure: maximum
permissible tire pressure for one tire.
Maximum load on one tire: maximum load on
one tire. This is calculated bydividing the maxi‐
mum axle load for one axle bytwo.
PSI (pounds per square in ch):standard unit of
measurement for tire pressu re. Aspect
ratio: relationship between tire height
and tire width in percent.
Ti re pressure: pressure inside the tire applying
an outward forc eto eve rysquare inch of the
tire's su rface. The tire pressure is specified in
pounds per square inch (psi), in kilopascal (kPa)
or in bar. The tire pressure should only be cor rec‐
te d when the tires are cold.
Ti re pressure on cold tires: the tires are cold
when theve hicle has been par ked with the tires
out of direct sunlight for at least thre e hours and
th eve hicle has been driven less than 1 mile
(1.6 km).
Ti re contact sur face: the part of the tire that
comes into con tact wi th thero ad.
Ti re bead: the purpose of the tire bead is to
ensure that the tire sits securely on the wheel
ri m. There are se veral wire cores in the tire bead
to preve ntthe tire from changing length on the
wheel rim.
Side wall:the part of the tire between the tread
and the tire bead.
Special equipment weight: the combined
we ight of those optional extras that we igh more
th an there placed standard parts and more than
5 lbs (2.3 kg). These op tionalextras, su chas
high-pe rformance brakes, le vel control sy stem, a
ro of luggage rack or a high-per form ance batter y,
are not included in the curb weight and the
we ight of the accessories.
TIN (Tire Identification Number): a unique iden‐
tification number which can be used bya tire
manufacturer toidentify tires, forex ample for a
product recall, and thus identify the pur chasers.
The TIN is made up of the manufacturer identifi‐
cation code, tire size, tire type code and the man‐
ufacturing date.
Load-bearing index: the load-bearing index (also
load index) is a code that con tains the maximum
load-bearing capacity of a tire.
Tr action: traction is there sult of friction between
th e tires and thero ad sur face.
We ar indicator: narrow bars (tread wear bars)
th at are distributed overth e tire tread. If the tire
tread is le vel with the bars, thewe ar limit of
1/ 16 in (1.6 mm) has been reached.
Distribution of vehicle occupants: distribution
of vehicle occupants over designated seat posi‐
tions in a vehicle. Wheels and tires
247
clogging. Deposits may also
form onthe fuel
injec tor.This may reduce the engine output.
Unburned fuel can get into the oil pan. This
causes the engine oil le velto rise. This can
cause engine mechanical damage.
Obser vethefo llowing points to avoid damage
and reducing the engine output: #
Fill up with fuels with bio-diesel content
of 5% (ULSD) or less, whene ver possi‐
ble. #
Regular lych eck your engine oil le vel if
yo u use B20 fuels on a regular basis. #
Strictly follow the oil change inter vals
qu oted in the instrument clus ter and
within your Main tenance Bookl et. #
Use only engine oils and filters
appr ovedfo r use in your vehicle. #
Ifyo u do not plan todrive your vehicle
fo r se veralwe eks, comple tely fill the
fuel tank in ad vance wi thULSD fuel. Fo
r more information, consult thega sst ation
st aff. The identification of fuels with bio-diesel
con tent (ULSD or B20) must be clear. If the iden‐
tification is not clear, do not refuel. Do not refuel
with any fuels that ha venot been appr ovedfor
yo ur vehicle.
Ta nk content and fuel reser ve
The total capacity of the fuel tank may vary,
depending on theve hicle equipment.
Ta nk content and fuel reser ve Gasoline engine
Total capacity
M2 74 approx. 22 gal
(85 liters) Diesel engine
Total capacity
OM6 51/OM642 appr ox.24 .5 gal
(93 liters) Gasoline engine Of which
reser ve
fuel
Models with appr ox.
19 gal (85 l) total
capacity appr
ox. 5 gal
(19 liters) Diesel engine Of which
reser ve
fuel
Models with appr ox.
20 gal (93 l) total
capacity appr
ox. 5 gal
(19 liters) DEF
Note
s on DEF
Obser vethe no tes on operating fluids
(/ page 263).
DEF is a water-soluble fluid forth eex haust gas
af te rtre atment of diesel engines.
* NO
TEDama gecaused byadditives in
DEF or bydiluting DEF The DEF
exhaust gas af tertre atment sy stem
could be destr oyed bythefo llowing:
R Additives in DEF
R Diluting DEF #
Only use DEF in accordance with ISO
222 41 . #
Do not mix additives. #
Do not dilu teDEF. *
NO
TEDama geand malfunctions caused
by impurities in DEF Impurities in DEF
result in thefo llowing:
R Higher emission values
R Damage tothe catalytic con verter
R Engine damage
R Malfunctions in the DEF exhaust gas
af te rtre atment sy stem #
Avoid impurities in DEF. +
ENVIRONMENTAL
NOTESoiling wi th
DEF DEF
residue cr ystallizes af ter some time and
st ain the af fected sur faces. 266
Tech nical da ta
#
Immedia tely rinse su rfaces that come in
con tact wi thDEF when filling with water
or remo veDEF wi tha damp clo thand
cold water.
If DEF has already cr ystallized, clean using a
spon geand cold water. If
yo u open the DEF tank, small amounts of
ammonia vapor may be released. Do not inhale
any ammonia vapor that may be released. Fill the
DEF tank only in well-ventilated areas.
DEF consum ption and filling capacity
DEF consum ption
Like fuel consum ption, DEF consum ption is highly
dependent upon driving style and operating con‐
ditions. DEF consum ption is usually within a
ra nge of 0 and 10% of the fuel consum ption. If
necessar y,DEF mu stbe refilled in acco rdance
with the instructions when there fill message is
displa yed in the instrument clus ter.This may also
be necessary between the scheduled mainte‐
nance.
To tal capacity of DEF tank Ve
hicl eT otal capacity
All model s5 .8gal (22 liters ) Exhau
stgas af tertre atment
The exhaust gas af tertre atment sy stem must be
operated in conjunction with DEF if it is tofunc‐
tion cor rectl y.
If yo u operate theve hicle without DEF or with
emissions-rele vant malfunctions, the legal MOT
appr oval is in validated. You will then probably no
longer be permitted tooperate theve hicle on
public roads.
It may be improper or punishable in some coun‐
tries tooperate a vehicle that uses no DEF or one
th at does not comply with the specifications of
th ese operating instructions.
Engine management monitors theex haust gas
af te rtre atment components for compliance with
emissions la wsand regulations. If you attem ptto
operate theve hicle without DEF, with diluted DEF
or with a dif fere nt reducing agent, this will be
de tected bythe engine management sy stem.
Other emissions- releva nt malfunctions, e.g.
me tering malfunctions or sensor er rors, are also
de tected and log ged. The engine management sy
stem subsequently
pr eve nts the engine being restar ted af ter issuing
a wa rning message.
Therefore add DEF tank regular lyduring vehicle
operation or, at the latest, af terre ceiving thefirst
wa rning message via the instrument clus ter. Engine oil
Note
s on engine oil
Obser vethe no tes on operating fluids
(/ page 263). *
NO
TEEngine damage caused byan
incor rect oil filter, incor rect oil or addi‐
tives #
Do not use engine oils or oil filters other
th an those which meet the specifica‐
tions necessary forth e prescribed
service inter vals. #
Do not alter the engine oil or oil filter in
order toachie velonger change inter vals
th an presc ribed. #
Do not use additives. #
Have the engine oil changed af terthe
prescribed inter vals. Mercedes-Benz
recommends having the oil
ch anged at a qualified specialist workshop.
Fu rther information on engine oil and oil filter:
R inthe MB Specifications for operating fluidsat
http://be vo.mercedes-benz.com (by entering
th e designation)
R at a qualified specialist workshop Te
ch nical da ta267
Quality and capacity of engine oil
%
The containers of
theva rious engine oils are
mar ked with theAC EA (Association of Euro‐
pean Automotive Manufacturers) and/or API
(America Petroleum Institu te) classifications.
Only use appr oved engine oils that cor re‐
spond tothe MB Specifications for operating
fl uids and the prescribed ACEA and/or API
classi fications named bel ow. Engine oils of
ot her grades are not permissible and can
re sult in the loss of the New Vehicle Limited
Wa rrant y.The use of other engine oils not
appr ovedfo r diesel engines can dama gethe
diesel particulate filter (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 e engine oils lis ted in theta ble are not availa‐
ble, you may add a maximum 1.1 US qt (1.0 liter)
of thefo llowing engine oils once only:
R Vehicles with a gasoline engine: MB-Frei‐
ga be or MB-Appr oval 229.3 or ACEA A3/B4
R Vehicles with a diesel engine: MB-Freigabe
or MB-Appr oval 228.5, 229.3 or 229.5
Multig rade engine oils of the prescribed SAE clas‐
si fication (viscosity) may be used all year round,
ta king the outside temp erature into account.
Vi scosity of the engine oil
* NO
TEEngine damage due toincor rect
SA E classi fication (viscosity) of the
engine oil If
th eSA E classi fication (viscosity) of the
engine oil added is not suitable for prolonged
low outside temp eratures, it may cause
engine damage.
The temp erature readings of theSA E classi fi‐
cation are al ways based on fresh oil. Engine
oil ages when driving as a result of soot and
fuel residue. The characteristics of engine oil
de teriorate significantly at low outside tem‐
peratures. #
Use an engine oil of the appropriate SAE
classi fication at low outside temp era‐
tures. #
Use oil for all-year-round operation. The
temp erature readings of theSA E classi fica‐
tion are al ways based on fresh oil. The temp era‐
ture characteristics of the engine oil, especially at
low outside temp eratures, can de teriorate signifi‐
cantly due toaging when driving.
Therefore, Mercedes-Benz recommends that you
ch ange the engine oil before thest art of the cold
season. Only use an appr oved engine oil in the
prescribed SAE classi fication forth is purpose. The viscosity indicates
theflow characteristics of
a fluid. With rega rd toengine oil, a high viscosity
is synonymous with thick liquid and a low viscos‐
ity with thin liquid. Depending on the outside
te mp eratures, select the engine oil according to
th eSA E classi fication (viscosity). The table sho ws
th eSA E classi fications tobe used. The low tem‐
perature characteristics of engine oils can de teri‐
orate significantly during operation due toaging
and soot and fuel acc retion, forex ample. A regu‐
lar oil change with an appr oved engine oil in the
appropriate SAE classi fication is therefore
stro ngly recommended.
Ad ditive
* NO
TEEngine damage due touse of addi‐
tives in the engine oil The use of additional additives in
the engine
oil can damage the engine. #
Do not use any additional additives in
the engine oil. Miscibility of engine oil
The benefits of high-quality engine oils are
re
duced bymixing oil.
We recommend that you on lyuse engine oil of
th e same grade and SAE classi fication as the oil
fi lled at the last oil change. If, in exceptional 268
Tech nical da ta
Information on
the windshield washer fluid
Re commended windshield washer fluid:
R abovefreezing point: e.g. MB SummerFit
R below freezing point: e.g. MB WinterFit
Mixing ratio
Fo rth e cor rect mixing ratio, referto the informa‐
tion on the anti-freeze container.
Mix thewa sher fluid with windshield 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
s onrefrigerant
Obser vethe no tes on operating fluids
(/ page 263).
% Yo
ur vehicle's climate contro l system can be
fi lled with R‑134a refrigerant. The refrigerant
R‑134a contains fluorinated greenhouse gas.
If yo ur vehicle is filled with R‑134a refrigerant, the
fo llowing information applies:
* NO
TEDama gecaused byincor rect refrig‐
erant If
th e incor rect refrigerant is used, this can
damage the climate cont rol sy stem. #
Use only R‑134a refrigerant or thePAG
oil appr ovedfo ryo ur vehicle by
Mercedes-Benz. #
The appr ovedPA G oil may not be mixed
with any other PAG oil that is not
appr ovedfo r R‑134a refrigerant. Maintenance
work, such as adding refrigerant or
re placing components, may be car ried out only
by aqu alified specialist workshop. All the applica‐
ble regulations relating tothis and theSA E J639
st andard must be adhered to.
All workon the climate cont rol sy stem should
alw ays be car ried out at a qualified specialist
wo rkshop. Example:
refrigerant warning label
1 Warning symbols
2 Refrigerant capacity
3 Applicable standards
4 PAG oil part number
5 Refrigerant type
Wa rning symbols 1referto thefo llowing:
R Potential dangers
R The per form ance of main tenance workat a
qu alified specialist workshop Ve
hicle data Information on
vehicle dimensions The
following section con tains impor tant tech ni‐
cal da taforyo ur vehicle. Your vehicle documents
contain fur ther vehicle-specific and equipment-
dependent tech nical da tasuch as vehicle dimen‐
sions and weights. Tr
ailer hitch Note
s onthe trailer hit ch &
WARNING Risk of accident due toafte r‐
mar ket ins tallation of a trailer hitch that
is not permissible
If af term arke t ins tallation of a trailer hitch is
not permissible and you ins tall a trailer hitch
or other assembly parts, the longitudinal
frame member will be weakened and may
break. In this case, the trailer may come
loose from theve hicle.
There is a risk of an accident.
Only ins tall a trailer hitch af term arke t if it is
pe rm issible. Obser
vethe no tes on trailer operation
(/ page 157). Te
ch nical da ta271
Emer
gency
Assis tance overview .......................... .16
Fir st-aid kit (so ftsided) ..................... 216
Saf etyve st ........................................ 216
Wa rning lamp .................................... 216
Emer gency braking
Elect ric pa rking brake ...................... .136
Manual parking brake ....................... 13 4
Emer gency call sy stem
Au tomatic emergency call ............... .217
Information ....................................... 216
Manual emer gency call ..................... 217
Overview ...........................................2 16
Emer gency engine start ..................... .228
Emer gency operation mode
St arting theve hicle .......................... 104
Emer gency Tensioning Devices
Ac tivation ........................................... 29
En gaging drive position (automatic
transmission) ........................................ 11 7
Engaging neut ral (automatic trans‐
mission) ................................................ .116
Engaging reve rsege ar .......................... 11 6
Engaging/disengaging LOW RANGE ...11 9
Engine Engine number ................................ .261
Jump-s tarting .................................... 219
Pa rking (s tart/s top button) .............. 13 2
Problems .......................................... 127
St arting (in emer gency operation
mode) ............................................... 104
St arting (s tart/s top button) .............1 04
Engine data Showing ............................................ 181
Engine electronics (no tes) ...................2 60
Engine number ...................................... 261
Engine oil .............................................. 205
Ad ditive ............................................ 267
Checking the oil le vel (on-board
computer) ........................................ 205
Checking the oil le vel with a dip‐
st ick ................................................ .204
Filling capacity ................................. 268
To pping up .......................................2 05
Engine output Notes on changes .............................. .23
ENR (electronic le vel control) ..............121
Fu nction ............................................ 121
Lo we ring theve hicle .........................1 23
Manually inflating air bello ws............ 124 Problems ..........................................
12 5
Ra ising theve hicle ............................1 23
Entering characters
Fu nction/no tes ................................ 178
Setting theke yboard ........................ 17 9
Using the media display ...................1 79
Environmental pr otection
No tes .................................................. 18
ESC (Electronic Stability Control)
see ESP ®
(Electronic Stability Prog ram)
ESP ®
Crosswind Assist .............................. 13 8
Tr ailer stabilization .......................... .139
ESP ®
(Electronic Stability Prog ram) ...13 8
Ac tivating/deactivating .................... 13 8
Fu nction/no tes ................................ 13 8
Exhaust emission moni toring .............1 07
Exterior lighting Care .................................................. 212
Exterior lighting see Lights F
Fa tigue de tection
see ATTENTION ASSIST
Favo rites
Ad ding .............................................. 17 7
Calling up ........................................ .177
Del eting ............................................ 178
Moving ..............................................1 78
Overview .......................................... 17 7
Re naming ......................................... 178
Firs t-aid kit (soft sided) ........................216
Flat tire .................................................. 218
Changing a wheel ............................ .251
No tes ................................................ 218
Floor co vering
Ins talling/ removing (s tarter bat‐
te ry ) .................................................. 221
Floor mat .................................................78
Fore ign trip
Instructions ...................................... 107
symmetrical low beam ....................... 79
Fr ee software ........................................ .27
Fr equencies
Mobile phone .................................. .260
Tw o-w ayradio .................................. 260
Fr ont airbag (driver, front passenger) .. 32314
Index