
Engine
Problem
Possible causes/consequences and
0050
0050Solutions 00B9
The yellow
CheckEngine
warning lamp
light supw hile
th ee ngineis
running. Ther
emay be amalfunction, for example:
R in th eenginem anagement
R in th efuel injection system
R in th eexhaust system
R in th eignition system
R in th efuel system
The emission limit values may be exceeded and th eenginem ay be
in emergency mode.
X Hav ethe vehicle checked as soon as possible at aqualified
specialist workshop.
i In som
estates, you must visi taqualifie dspecialist workshop
as soon as th eyellow check engin ewarning lamp light sup. This
is due to th elegal requirements in effect in these states. If in
doubt ,che ck whether suc hlegal regulations apply in th estate in
whic hyou are currently driving. 00B9
The yellow
CheckEngine
warning lamp
light supw hile
th ee ngineis
running. The
smoothness of
th eg ear change
is restricted. The sub geartrain with th
eodd gear shas failed .The transmission
is in emergency mode.
X Hav ethe vehicle checked as soon as possible at aqualified
specialist workshop. 00E4
The red engine
oil temperature
warning lamp
comes on while
thee ngineis
running. Awarn-
ing tone also
sounds. The engin
eoil temperatur ehas exceeded 28 4‡(140† ).
The engin eisnotbein gcooled sufficiently and may be damaged.
X Pull ove rand stop th evehicle safely and switch off th eengine,
paying attentio ntoroad and traffic conditions.
X Allo wthe engin etoc ooldown. Warning and indicator lamps in th
einstrumen tcluster
195On-boar dcomputer and displays Z

Problem
Possible causes/consequences and
0050
0050Solutions 00E4
The red engine
oil temperature
warning lamp
comes on while
the engine is
running. The
engine oil tem-
perature is not
displayed. The engine control unit data transfer is malfunctioning.
X Visit aqualified specialist workshop. 00B5
The yellow
reserve fuel
warning lamp
lights up while
the engine is
running. The fuel level has dropped into the reserve range.
X Refuel at the nearest gas station. 00B5
The yellow
reserve fuel
warning lamp
flashes while the
engine is run-
ning. The fuel system pressure is too low. The fuel filler cap is not closed
correctly or the fuel system is leaking.
X Check that the fuel filler cap is correctly closed.
X If the fuel filler cap is not correctly closed: close the fuel filler
cap.
X If the fuel filler cap is closed: visitaqualified specialist work-
shop. 196
Warning and indicator lampsint
he instrument clusterOn-board computer and displays

Hood release leve
rindriver's footwell
X Pull release lever 0043on the hood.
The hood is released.
! Make sure that the windshield wipers are
not folded away from the windshield .You
coul dotherwise damag ethe windshield
wipers or the hood. X
Reach into the gap ,pullh ood catch han-
dle 0044up and lift the hood.
Closing the hood X
Lower the hood and let it fal lfrom aheight
of approximatel y8inches (20 cm).
X Check that the hood has engaged properly.
If the hood can be raised slightly ,itisnot
properl yengaged .Openita gain and close
it with alittle more force. Engine oil
General notes Depending on the driving style, the vehicle
consumes up to 0.9 US qt (0.8 l) of oil over a
distance of 600 miles (1000 km). The oil con- sumptio nmay be higher than this whe nthe
vehicle is new or if yo ufrequently drive at high
engine speeds.
Depending on the engine, the oil dipstick may
be in adifferent location.
Whe nchecking the oil level:
R park the vehicle on aleve lsurface.
R the engine should be switched off for
approximatel yfive minutes if the engine is
at normal operating temperature.
R if the engine is not at normal operating
temperature, e.g. if the engine wa sonly
started briefly ,waita bout 30 minutes
before carrying out the measurement.
Checking the oill evel usin gthe oild ip-
stick G
WARNING
Certai ncomponents in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment pose sa
risk of injury.
Where possible, let the engine cool dow nand
touch only the components describe dinthe
following. Engine compartment
219Maintenance and care Z

Cleaning genuine wood and trim ele-
ments !
Do no
tuse solvent-based cleanin gagents
suc hast ar remover, wheel cleaners, pol-
ishe sorw axes. Ther eisotherwise ariskof
damaging th esurface.
! Do no
tuse chrom epolis hont rimp ieces.
The trim pieces have achrom elook but are
mostly made of anodized aluminum and
can lose their shin eifchrom epolis his
used. Use adamp, lint-free cloth instead
when cleanin gthe trim pieces.
If th echrome-plated trim pieces are very
dirty, you can use achrom epolish. If you
are unsure as to whether th etrimp ieces
are chrome-plated or not, consult an
authorized Mercedes-Ben zCenter.
X Wipe th ewoode ntrima nd trim pieces with
ad amp, lint-free cloth ,e.g.am icrofiber
cloth.
X Heavy soiling: use careand cleanin gprod-
uct srecommended and approved by
Mercedes-Benz.
Cleaning th eseat covers General notes
! Do no
tuse microfiber cloth stoclean gen-
uine leather ,artificial leather or DINAMICA
covers. If used often ,the se can damag ethe
cover.
i Not
ethatregular car eisessential to
ensure that th eappearanc eand comfort of
th ec oversisr etaine dovertime.
Genuine leather seat covers
Leather is anatural product.
It exhibit snatural surface characteristics, for
example:
R differences in th etexture
R sign sofs tretching and marking
R sligh tnuances of color
Thes eare characteristic sofleather and not
material defects. !
To retain th
enatural appearanc eofthe
leather ,observ ethe followin gcleaning
instructions:
R Clean genuine leather cover scarefully
wit had amp cloth and then wipe th ecov-
ers down wit hadry cloth.
R Mak esure that th eleather does not
become soaked. It may otherwise
become roug hand cracked.
R Only use leather car eagents that have
been tested and approved by Mercedes-
Benz. You can obtain these from aquali-
fied specialist workshop.
Seat cover sofother materials
! Observ
ethe followin gwhen cleaning:
R clean artificial leather cover swithac loth
moistene dwithas olution containing 1%
detergen t(e.g. dish washin gliquid).
R clean cloth cover switham icrofiber cloth
moistene dwithas olution containing 1%
detergen t(e.g. dish washin gliquid). Rub
carefully and always wipe entir eseat sec-
tions to avoid leavin gvisible lines. Leave
th es eat to dry afterwards. Cleaning
results depen donthetype of dirt and
how lon githas been there.
R clean DINAMICA cover swithad amp
cloth .Makes ure that you wipe entire
seat sections to avoid leavin gvisible
lines.
Cleaning th eseat belts G
WARNING
Seat belt scan become severely weakened if
bleached or dyed. This coul dcaus ethe seat
belt stot earorf ail, for instance, in th eevent of
an accident. This pose sanincreased ris kof
injury or fatal injury.
Never bleac hordye theseat belts.
! Do no
tclean th eseat belt susin gchemical
cleanin gagents .Don otdry th eseat belts
by heating at temperatures abov e176 ‡
(80 †) or in direct sunlight. 230
CareMaintenance and care

engin
eoils and oil filters that are approved for
vehicles with maintenanc esystems.
For alist of approved engin eoils and oil filters,
consult an authorized Mercedes-Benz
Center .Orvisit the website
http://bevo.mercedes-benz.com.
The table shows which engine oils have been
approved for your vehicle. MB sheet number
229.5
7 i
MB approval is indicated on the oil con-
tainers.
Filling capacities The following values refer to an oil change
including the oil filter.
Engine with oil filter
10.0USq
t(9.5l) Ad
ditives !
Do not us
eany additive sinthe engine oil.
Thi scould damag ethe engine.
Engine oi lviscosity Viscosity describe
sthe flo wcharacteristics
of afluid .Ifane ngine oi lhas ah ighv iscosity,
this means tha titisthick; alow viscosity
means tha titisthin.
Select an engine oi lwithanS AE classification
(viscosity )suitabl efor the prevailing outside
temperatures. The table shows yo uwhich
SAE classifications are to be used .The low- temperature characteristics of engine oils
can deteriorate significantly, e.g. as
aresult
of aging, soo tand fue ldep osits. It is therefore
strongly recommended tha tyou carr youtreg-
ular oi lchanges using an approved engine oil
with the appropriate SAE classification. Refrigerant of the air-conditioning
system
Important safety notes Type of refrigerant
The climate control system of your vehicl
eis
fille dwithr efrigerant R ‑134a.
The instruction labe lregarding the refrigerant
typ eusedc an be found on the radiator cross
member.
Refrigerant R‑ 134a
! Only the refrigerant R‑134a and the PAG
oi la pp roved by Mercedes-Benz may be
used .The approved PAG oi lmay not be
mixe dwitha ny othe rPAG oi ltha tisn ot
approved for R-134a refrigerant. Other-
wise, the climate control system may be
damaged.
Service work, such as topping-u prefrigerant
or replacing components ,may only be carried
ou tb yaq ualified specialist workshop. All
applicabl eregulations mus tbea dhered to,
SAE standard J63 9included.
Alway shavew orkont he climate control sys-
tem carrie doutataq uali fied specialist work-
shop.
7 Restriction: only us eSAE 0W-40/SAE 5W-40 engine oils. 284
Servic
eproducts and filling capacitiesTechnical data

Refrigerant instructio
nlabel Example
:refrigerant instruction label
0043 Warning symbol
0044 Refrigerant filling capacity
0087 Applicabl eSAE standards
0085 PAG oi lpartn umber
0083 Type of refrigerant
Warning symbols 0043indicate:
R possible dangers
R having service work carrie doutataq uali-
fie ds pecialist workshop
Fillin gcapacities Missing value
sweren ot available at time of
going to print. Al
lm odels Capacity
Refrigerant
28.2 oz
(800 g) PA
Go il Brake fluid
G
WARNING
The brake fluidc onstantly absorbs moisture
from the air. This lowers the boiling point of
the brake fluid. If the boiling point of the brake fluidist oo low, vapor pockets may form in the
brake system when the brakes are applied
hard. This would impair braking efficiency.
There is arisk of an accident. You shoul
dhave the brake fluidr enewed at
the specified intervals.
When handling brake fluid, observe the
important safety notes on service products
(Y page 281).
The brake fluidc hange intervals can be found
in the Maintenance Booklet.
Only use brake fluida pproved by Mercedes-
Benz according to MB Approval 331.0.
Information abouta pproved brake fluidc an
be obtained at any qualified specialist work-
shop or on the Internet at
http://bevo.mercedes-benz.com.
i Have the brake fluidr
egularly replaced at
aq ualified specialist workshop and the
replacement confirmed in the Maintenance Booklet. Coolant
Important safety notes !
Only add coolant that has been premixed
with the desired antifreeze protection. You
could otherwise damage the engine.
Further information on coolants can be
found in the Mercedes-Benz Specifications for Service Products, MB BeVo 310.1, e.g.
on the Internet at
http://bevo.mercedes-benz.com .Orcon-
tact aqualified specialist workshop.
! Always use
asuitable coolant mixture,
even in countries where high temperatures
prevail.
Otherwise, the cooling system is not suffi-
ciently protected from corrosion and over-
heating.
i Have the coolant regularly replaced at a
qualified specialist workshop and the
replacement confirmed in the Maintenance Booklet.
Compl ywith the important safety precautions
for service products when handling coolant
(Y page 281). Servic
eproducts and filling capacities
285Technical data Z

The coolant is
amixture of water and anti-
freeze/corrosion inhibitor. It performs the
following tasks:
R corrosion protection
R antifreeze protection
R raising the boiling point
If the coolant has antifreeze protection down to -35 ‡(-37 †), the boiling point of the cool-
ant during operatio nisa pproximately 266 ‡
(13 0† ).
Th ea ntifreeze/corrosion inhibito rconcentra-
tio nint he engine cooling syste mshould:
R be at leas t50% .Thisw illp rotect the engine
cooling syste magain st freezing down to
approximately -35‡(-37† ).
R no te xceed 55% (antifreeze protection
down to -49‡[-45† ]).O therwise, heat
will no tbed issipated as effectively.
If the vehicl ehaslost coolant, ad dequal
amounts of water and antifreeze/corrosion
inhibitor. Mercedes-Benz recommend san
antifreeze/corrosio ninhibito rconcentrate in
accordanc ewithMBS pecifications for
Service Products 310.1.
Th ec oolant is checked with every mainte-
nanc einterva lataq ualified specialis twork-
shop.
i When the vehicl
eisfirst delivered ,itisfil-
le dw ithac oolant mixtur ethate nsures
adequate antifreeze and corrosio nprotec-
tion. Windshield/headlamp cleaning sys-
tem
Important safety notes !
Onl
yusewashe rfluid thatiss uitabl efor
plastic lamp lenses, e.g .MBSummerFit or
MB WinterFit. Unsuitabl ewashe rfluid
could damage the plastic lense softhe
headlamps. !
Do not ad
ddistilled or de-ionize dwater to
the washe rfluid container. Otherwise, the
level senso rmaybe damaged.
! Onl
yMBS ummerFit and MB WinterFit
washe rfluid shoul dbem ixed together. The
spra ynozzles ma yotherwis ebecome
blocked.
At temperatures above freezing: X Fil lthe washe rfluid reservoi rwitham ixture
of water and windshiel dwashe rfluid, e.g.
MB SummerFit.
Add 1partMBS ummerFit to 100 parts water.
At temperatures belo wfreezing:
X Fil lthe washe rfluid reservoi rwitham ixture
of water and windshiel dwashe rfluid, e.g.
MB WinterFit.
Adapt the mixing ratio to the outside temper-
ature.
R Dow nto1 4‡( 00F810 †): mix 1partMBW in-
terFit to 2parts water.
R Down to 00F84‡(00F820 †): mix 1partMBW in-
terFit to 1partw ater.
R Down to 00F820.2‡(00F829 †): mix 2parts MB
WinterFi tto1partw ater.
i Add windshield washer fluid, e.g. MB
SummerFi torMBWinterFit, to the washer
fluid ally earround.
Filling capacities Model Capacity
Allm
odels 7.4 US qt (7.0
l) Vehicl
edata, Coupe Dimension
sand weights
The data stated her especifically refers to a
vehicl ewiths tandard equipment. Consult an
authorize dMercedes-Benz Center for the
data for al lvehicl evariants and trim levels. 286
Vehicl
edata, CoupeTechnica ldata