
Display messages
Possible causes/consequences and
0050
0050Solutions 00B2
Check Engine Oil Check Engine Oil
Level Level
(Add1
(Ad d1Liter) Liter) The oil level is to
olow.
X Chec kthe oil level (Y page 219).
X If necessary, add engin eoil.
X Hav ethe engin echecked forleak sify ou need to add engin eoil
mor eoften than usual.
! Avoid lon
gjou rneys wit htoo littl eengineo il. The engin ewill
otherwise be damaged.
Information on approve dengineo ils can be obtained from any
qualified specialist workshop or on th eInterne tathttp://
www.mbusa.com (US Aonly). 00B2
Engine Oil Level Engine Oil Level
Too High Too High You hav
eadded to omuche ngineo il. The engin eorcatalytic con-
verte rmay be damaged.
X Siphon of fexces sengineo il until it is at th especified level.
Observ ethe legal requirements. 00B2
Engine Oil Level Engine Oil Level
Cannot Be Measured Cannot Be Measured The measurin
gsystem is faulty.
X Visit aqualified specialist workshop. 00B2
Engine Oil Pres‐ Engine Oil Pres‐
sur
eC ontro lSee
sur eC ontro lSee
Operator' sManual
Operator' sManual The oil pressur
esensor has reported amalfunction.
The oil pressur econtro lisine mergenc ymode.
The engin elubrication is guaranteed.
X Visit aqualified specialist workshop. 00B2
Engine Oil Pres‐ Engine Oil Pres‐
sur
eS topV ehicle
sur eS topV ehicle
Tur nE ngine Off
Tur nE ngine Off X
Pull ove rand stop th evehicl esafely and switch of fthe engine,
payin gattention to roa dand traffic conditions.
X Chec kthe engin eoil level (Y page 219) and to pupifnecessary.
X If there are visible signs of oil los sfromt hevehicle, consult a
qualified specialist workshop. 00A8 There is only
asma ll amount of fue linthefuel tank.
X Refuel at th eneares tgas station. 00B6
Fue
lL evel Low
Fue lL evel Low The fuel level has fallen belo
wthe reserv erange.
X Refuel at th eneares tgas station. Display
messages
179On-boardcomputer an ddisplays Z 

Display messages
Possible causes/consequences and
0050
0050Solutions The sof
ttop has been opened and closed several times in arow.
The soft-to pdrive has been switched of fautomatically fo rsafety
reasons.
You can open and close th esoftt op again after approximately ten
minutes.
X Switc hoffthei gnition and tur nitbacko n.
X Repea tthe openin gorclosingprocedure (Y page 79). 0059
Depres
sBrake to
Depres sBrake to
Start Engine Start Engine You hav
eattempte dtoc lose th esoftt op withthe softtop switch
while th evehicl ewas stationary.
X Depress th ebrak epedal.
X Press th esoft-to pswitch until th esoftt op is completely closed. 00B2
Check Washer Fluid Check Washer Fluid The washer flui
dlevel in th ewasher flui dreservoir has dropped
belo wthe minimum.
X Ad dw asher flui d(Ypage 221). SmartKey
Display messages
Possible causes/consequences and
0050
0050Solutions 0039
Change Key Battery Change Key Battery The SmartKey batterie
sare discharged.
X Change th ebatterie s(Ypage 65). 0039
Key Not Detected Key Not Detected
(re
dd isplay message) The SmartKey is no
tinthevehicle. Awarnin gtonea lso sounds.
Whe nyou switch of fthe engine, you will be unable to restar tit.
X Pull ove rand stop th evehicl esafely as soo naspossible, paying
attention to roa dand traffic conditions.
X Locate th eSmartKey. The ke
yisnotdetecte dwhile drivin gbecause apowerful radio
transmitte riscausin ginterfe rence. Awarnin gtonea lso sounds.
X Pull ove rand stop th evehicl esafely as soo naspossible, paying
attention to roa dand traffic conditions.
X Inser tthe keyintot he ignition loc kand tur nittot hedesired
position (Y page 119). Display
messages
185On-boardcomputer an ddisplays Z 

Problem
Possible causes/consequences and
0050
0050Solutions 0089
00BB
The yellowE
SP®
and ESP ®
OFF
warning lamps
are lit while the
engine is run-
ning. ESP
®
is not available due to amalfunction.
G WARNING
The brake system continues to function normally, but without the functions listed above.
The braking distance in an emergency braking situation can thus
increase.
If ESP ®
is not operational, ESP ®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Visit aqualified specialist workshop. 0075
The red SRS
warning lamp is
lit while the
engine is run-
ning. There is
amalfunction in the SRS (Supplemental Restraint Sys-
tem).
G WARNING
If the air bags or Emergency Tensioning Devices are either trig-
gered unintentionally or, in the event of an accident, not triggered.
There is an increased risk of injury.
X Drive on carefully.
X Have SRS checked at aqualified specialist workshop immedi-
ately.
For further information about SRS, see (Y page 37).194
Warning and indicator lampsint
he instrument clusterOn-board computer and displays 

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 

X
Unscrew and remove oil filler cap 0043with
the integrated dipstick.
X Wipe the oil dipstick.
X Screw on oil filler cap 0043againtot he stop.
X Unscrew oil filler cap 0043againa nd read the
dipstick.
If the level is between MIN mark 0087and
MAX mark 0044,the oil level is correct.
X If the oil level has dropped to MIN mark 0087
or below,a dd 1.1 US qt (1. 0liter )engine oil.
Adding engineo ilG
WARNING
Certain componentsint he engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible,l et the engine cool down and
touch only the componentsd escribed in the
following. G
WARNING
If engine oil comes into contact with hot com- ponents in the engine compartment,itm ay
ignite. There is arisk of fire and injury.
Make sure that engine oil is not spilledn ext to
the filler neck. Let the engine cool down and
thoroughly clean the engine oil off the com-
ponents before starting the engine. H
Environmental note
When adding oil, take care not to spill any. If
oil enters the soil or waterways, it is harmful to the environment.
! Only use engine oils and oil filters that
have been approved for vehicles with a
service system. You can obtain alist of the
engine oils and oil filters tested and
approved in accordance with the
Mercedes-Benz Specifications for Service
Products at any Mercedes-Benz Service
center. Damage to the engine or exhaust system is
caused by the following:
R using engine oils and oil filters that have
not been specificallya pproved for the
service system
R replacing engine oil and oil filters after
the interval for replacement specified by
the service system has been exceeded
R using engine oil additives.
! Do not add too much oil. adding too much
engine oil can result in damage to the
engine or to the catalytic converter. Have
excess engine oil siphoned off. X
Unscrew and remove oil filler cap 0043with
the integrated dipstick.
X Add engine oil.
If the oil level is at or below the MIN mark on
the oil dipstick, add 1.1 US qt (1.0 l)of
engine oil.
X Replace cap 0043on the filler neck and
tighten clockwise.
Ensure that the cap locks into place
securely.
X Check the oil level again with the oil dip-
stick (Y page 219).
You will find further information about engine
oil in the "Technical data" section
(Y page 283). 220
Engine compartmentMaintenance and care 

Additiona
lservice products
Checking coolant level G
WARNING
Certain component sintheengin ecom part-
ment, suc hastheengine, radiato rand parts
of th eexhaust system, can become ver yhot.
Working in th eenginec om partmen tposes a
ris kofi njury.
Wher epossible, let th eenginec ooldown and
touch only th ecom ponent sdescribed in the
following. G
WARNING
The engin ecoolings ystem is pressurized, par-
ticularly when th eengineisw arm.When
opening th ecap,you could be scalded by hot
coolan tsprayin gout.T here is ariskofi njury.
Let th eenginec ooldown before opening the
cap .Wear eye and han dprotection when
opening th ecap.O pen th ecap slowly half a
tur ntoa llow pressur etoescape.
Only chec kthe coolan tlevel when th evehicle
is on alevel surfac eand th eengineh as cooled
down.
X Se tthe Start/Sto pbutto ntok eyposition
2.
X Chec kthe coolan ttem perature display in
th e" AMG" men u(Ypage 160).
The coolan ttem perature mus tbebelow
15 8‡( 70 †). X
Slowly tur ncap 0043 half aturnc ounter-
clockwise and allow excess pressur eto
escape.
X Turn cap 0043further counter-clockwise and
remove it.
If th ecoolan tisatt helevel of th emarker
bar in th efiller neck when cold, there is
enough coolan tincoolan texpansion
tank 0044.
If th ecoolan tlevel is approximately 0. 6in
(1. 5c m) abov ethe marke rbar in th efiller
neck when warm ,the re is enough coolant
in coolan texpansion tank 0044.
X If necessary, add coolan ttha th as been
tested and approve dbyMercedes-Benz.
X Replac ecap 0043 and tur nitclockwise as far
as it will go.
You will fin dfurther information about coolant
in th e"Technical data" section (Y page 285).
Windshiel dwasher system and head-
lam pcleaning system G
WARNING
Certain component sintheengin ecom part-
ment, suc hastheengine, radiato rand parts
of th eexhaust system, can become ver yhot.
Working in th eenginec om partmen tposes a
ris kofi njury.
Wher epossible, let th eenginec ooldown and
touch only th ecom ponent sdescribed in the
following. G
WARNING
Windshield washer concentrate could ignit eif
it comes int ocontac twithh ot engin ecom po-
nent sort heexhaust system. There is ariskof
fir ea nd injury.
Mak esuret hatnow indshield washe rcon-
centrat eisspilled next to th efiller neck.
The washe rfluid reservoir is used for bot hthe
windshield washe rsystem and th eheadlamp
cleaning system. Engine compartment
221Maintenance and care Z