2015 MERCEDES-BENZ E-CLASS SALOON engine coolant

Engine
Problem
Possible causes/consequences and
M
MSolutions ;
The yellow engin
ediag-
nostics warning lamp
light supw hile the
engin eisrunning. Ther
emay be afault ,for example:
R in th eenginem anagement
R in th efuel injection system
R in th eexhaust system
R in th eignition system (for vehicle swith petrol engines)
R in th efuel system
The emission limit values may be exceeded and th eenginem ay be
runnin ginemergency mode.
X Hav ethe vehicle checked as soon as possible at aqualified
specialist workshop. Vehicle
swithadiese leng ine: th efuel tan khas been run dry
(Y page 204).
X Afte rrefuellin gstart th eenginet hree to four times.
If th eyellow engin ediagnostics warning lamp goes out ,emer-
gency runnin gmode is cancelled. The vehicle need no tbe
checked. 8
The yellow reserv
efuel
warning lamp is on
while th eengineisr un-
ning. The fuel leve
lhas dropped int othe reserv erange.
Operatio noftheauxiliar yheating is deactivate difthefuel level
drops int othe reserv erange.
X Refuel at th eneares tfillin gstation. ?
The red coolant warn-
ing lamp light
supwhile
th ee ngineisr unning
and th ecoolant tem-
perature gauge is at the start of th escale. The temperatur
esensor for th ecoolant temperatur egauge is
faulty.
The coolant temperatur eisnolonger bein gmonitored. Ther eisa
risk of engin edamage if th ecoolant temperatur eistoohigh.
X Stop th evehicle immediately, paying attentio ntoroad and traf-
fic conditions, and switch off th eengine. Do no tcontinue driving
unde rany circumstances.
X Safeguard th evehicle against rolling away (Y page 205).
X Consult aqualifie dspecialist workshop. 336
Warning and indicator lamps in th
einstrumen tclusterOn-boar dcomputer and displays

Problem
Possible causes/consequences and
M
MSolutions ?
The red coolant warn-
ing lamp comes on
while the engine is run-
ning.
The coolant level is too low.
If the coolant level is correct,t
he airflow to the engine radiator may
be blocked or the electric engine radiator fan may be malfunc-
tioning.
The coolant is too hot and the engine is no longer being cooled
sufficiently.
X Observe the additional display messages in the multifunction
display.
X Stop the vehicle immediately, paying attention to road and traf-
fic conditions, and switch off the engine.
X Safeguard the vehicle against rolling away (Y page 205).
X Leave the vehicle and keep asafe distance from the vehicle until
the engine has cooled down.
X Check the coolant level and top up the coolant, observing the
warning notes (Y page 382).
X If you have to top up the coolant frequently, have the engine
cooling system checked.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by frozen slush.
X Do not start the engine again until the coolant temperature is
below 120 †. The engine may otherwise be damaged.
X Drive to the nearest qualified specialist workshop.
X Avoid putting the engine under heavy load as you do so, e.g.
driving in mountainous terrain and stop-start traffic. ?
The red coolant warn-
ing lamp comes on
while the engine is run-
ning.
Awarning tone
also sounds. The coolant temperature has exceeded 120 †. The airflow to the
engine radiator may be blocked or the coolant level may be too
low.
G WARNING
The engine is not being cooled sufficiently and may be damaged.
Never drive with an overheated engine. Driving when your engine is overheated can cause some fluids which may have leaked into
the engine compartmen ttocatch fire.
In addition, steam from an overheated engine can cause serious
burns, which can occur just by opening the bonnet.
There is arisk of injury.
X Observe the additional display messages in the multifunction
display.
X Stop the vehicle immediately, paying attention to road and traf-
fic conditions, and switch off the engine.
X Safeguard the vehicle against rolling away (Y page 205).Warning and indicator lampsint
he instrument cluster
337On-board computer and displays Z

Problem
Possible causes/consequences and
M
MSolutions X
Leave the vehicle and keep asafe distance from the vehicle until
the engine has cooled down.
X Check the coolant level and top up the coolant, observing the
warning notes (Y page 382).
X If you have to top up the coolant frequently, have the engine
cooling system checked.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by frozen slush.
X If the coolant temperature is below 120 †, you can continue
driving to the nearest qualified specialist workshop.
X Avoid putting the engine under heavy load as you do so, e.g.
driving in mountainous terrain and stop-start traffic. Driving systems
Problem
Possible causes/consequences and
M MSolutions ·
The red distance warn-
ing lamp lights up while
the vehicle is in motion. The distance to the vehicle in front is too small for the speed
selected.
X Increase the distance. ·
The red distance warn-
ing lamp lights up while
the vehicle is in motion. Aw arning tone also
sounds. You are approaching
avehicle, apedestrian or astationary obsta-
cle in your line of travel at too high aspeed.
X Be prepared to brake immediately.
X Pay careful attention to the traffic situation. You may have to
brake or take evasive action.
Observe the additional information on PRE‑ SAFE®
Brake
(Y page 87).
Observe the additional information on the distance warning func-
tion of COLLISION PREVENTION ASSIST PLUS (Y page 80).338
Warning and indicator lampsint
he instrument clusterOn-board computer and displays

G
WARNING
If engine oil comes into contact with hot com- ponents in the engine compartment, it may
ignite. There is arisk of fire and injury.
Make sure that engine oil does not spil lout
over the filler neck. Allow the engine to cool
downa nd thoroughly clea nthe components
that have come into contact with engine oil
before you start the engine. H
Environmental note
When topping up the oil,t ake care not to spill
any. If oil enters the soil or waterways, it is
harmfu ltothe environment.
! Only use engine oilsa
nd oil filters that
have been approved for vehicles with aser-
vice system. You can obtai nalistoft he
engine oilsa nd oil filters tested and
approved in accordance with the
Mercedes-Benz Specifications for Service
Products at any Mercedes-Benz Service
Centre.
Damag etothe engine or exhaust system is
caused by the following:
R using engine oilsa nd oil filters that have
not been specifically approved for the
service system
R changing the engine oil and oil filter after
missing the change interval required by
the service system
R using engine oil additives
! Do not add too much oil.T
opping up with
too much engine oil can result in damage to
the engine or to the catalytic converter.
Have excess engine oil siphoned off. Example
X Turn cap :anti-clockwise and remove it.
X Top up the engine oil.
If the oil leve lisatorbelow the MIN mark on
the oil dipstick, top up with 1.0 lofe ngine
oil.
X Replace cap :on the filler neck and turn
clockwise.
Make sure that the cap locks securely into place.
X Check the oil level again with the oil dip-
stick (Y page 381).
For further information on engine oil, see
(Y page 478). Other service products
Checking the coolant level G
WARNING
Certain components in the engine compart-
ment could be very hot, e.g. the engine, the
radiator and parts of the exhaust system.
There is arisk of injury when accessing the
engine compartment.
As far as possible, allow the engine to cool
down and only touch the components descri- bed in the following. G
WARNING
The engine cooling system is under pressure, particularly if the engine is warm. You could
be scalded by hot coolant spraying out when
opening the cap. There is adanger of injury. 382
Engine compartmentMaintenance and care

Allow the engine to coo
lbefore opening the
cap .Wearg love sa nd protective eyewear
when opening. Slowl yturn the cap half aturn
to allo wpressure to escape. X
Park the vehicl eonalevel surface.
Onl ycheck the coolant level if the vehicl eis
on alevel surface and the engine has
coole ddown.
X Turn the key to position 2in the ignition
lock (Y page 179).
On vehicles with KEYLESS-GO ,press the
Start/Stop button twice (Y page 179).
X Check the coolant temperature display in
the instrument cluster.
The coolant temperature must be below
70 †.
X Turn the key to position 0in the ignition
lock (Y page 179).
X Slowl yturn cap :half aturn anti-clock-
wise to allo wexcess pressure to escape.
X Turn cap :furthe ranti-clockwise and
remove it.
If the coolant is at the level of marker bar =
in the fille rneck when cold, ther eisenough
coolant in coolant expansio ntank ;.
If the coolant level is approximatel y1.5 cm
above marker bar =in the fille rneck when
warm, ther eisenoughcoolant in coolant
expansio ntank ;.
X If necessary ,top up with coolant tha thas
been teste dand approved by Mercedes-
Benz.
X Replace cap :and turn it clockwise as far
as it will go. For furthe
rinformatio noncoolant, see
(Y page 479).
Topping up the windscreen washe rsys-
tem G
WARNING
Certai ncomponents in the engine compart-
ment could be ver yhot, e.g .the engine ,the
radiato rand parts of the exhaus tsystem.
There is ariskofi njury when accessing the
engine compartment.
As far as possible, allo wthe engine to cool
down and onl ytouch the components descri-
be dint he following. G
WARNING
If windscree nwashe rconcentrate come sinto
contact with hot components of the engine or
the exhaus tsystem ,itc an ignite .There is a
ris koff irea nd injury.
Make sure the windscree nwashe rc oncen-
trate does not come into contact with the filler neck. X
To open: pull cap:upwards by the tab.
X Top up with the premixe dwashe rfluid.
X To close: press cap :onto the fille rneck
unti lite ngages.
If the washe rfluid level drops belo wthe rec-
ommende dminimu mof1l itre, am essage
appear sinthe multifunctio ndisplay prompt-
ing yo utotop up the washe rfluid
(Y page 328). Engine compartment
383Maintenance and care Z

X
Slide the right-hand front sea ttoits rear-
mos tposition.
X Fol dfloor covering :upwards.
VIN ;can be seen. Engine number
The engine number is stampe dinto the crank-
case. Yo ucan obtain further information from
any qualified specialist workshop. Servic
eproducts and capacities Important safety notes
G
WARNING
Service product can be poisonous and haz-
ardou stohealth. There is ariskofi njury.
Observe the instructions on the respective
original containe rwhenu sing ,storing and dis-
posing off service products. Alway sstore ser-
vice products in the seale doriginal container.
Alway skeep service products ou tofthe reach
of children. H
Environmental note
Dispose of service products in an environ-
mentally-responsible manner.
Service products includ ethe following:
R fuels
R exhaus tgas aftertreatment additives, e.g.
AdBlue ®
R lubricants (e.g. engine oil, transmissio noil)
R coolant
R brake fluid
R windscreen washe rfluid
R climate control system refrigerant
Components and service products mus tbe
matched .Only us eproducts recommended
by Mercedes-Benz. Damage which is caused
by the us eofproducts which have not been
recommended is not covered by the
Mercedes-Benz warranty or goodwil lges- tures. The
yare listed in this Mercedes-Benz
Owner's Manua linthe appropriate section.
Yo uc an identif yservice products approved
by Mercedes-Benz by the following inscrip-
tions on the container:
R MB-Freigab e(e.g. MB-Freigab e229.51)
R MB Approva l(e.g. MB Approva l229.51)
Othe rdesignations or recommendations indi-
cate alevel of quality or aspecification in
accordance with an MB Shee tNum ber(e.g.
MB 229.5) .The yh aven ot necessaril ybeen
approved by Mercedes-Benz.
Othe ride ntifications ,for example:
R 0W -30
R 5W -30
R 5W -40
Further information can be obtaine dfrom any
Mercedes-Benz Service Centre or on the
Interne tath ttp://bevo.mercedes-benz.com. Fuel
Important safety notes G
WARNING
Fue lish ighl yf lammable. If yo uhandlef uel
incorrectly, ther eisariskoff irea nd explo-
sion.
Yo um usta void fire, nake dflames ,creating
sparks and smoking. Switch off the engine
and ,ifa pplicable, the auxiliary heating before
refuelling. G
WARNING
Fuels are poisonous and hazardou stohealth.
There is adanger of injury.
Do not swallo wfuelorl etit come into contact
with skin, eyes or clothing .Donot inhale fuel
vapours. Kee pfuels ou tofthe reach of chil-
dren. Servic
eproducts and capacities
473Technical data
Z

Model Replacement
amount E5
00
E5 00 4MATIC
E3 00 BlueTEC
E3 50 CDI
E3 50 BlueTEC
E3 50 BlueTEC
4MATIC 8.0 l
AMG vehicles
8.5 l
All other models
6.5 l
Additives
!
Do not use any additives with the engine
oil.T his coul ddamage the engine.
Engine oil viscosity Viscosity describes the flow characteristics
of afluid. If an engine oil has ahigh viscosity
rating, it flow sslowly;t he lower the viscosity,
the faster it flows.
Engine oil selection is based on the respective outside temperatures and in accordance with
the SAE classification (viscosity) .The table
show syou which SAE classifications are to be
used. The low-temperature properties of
engine oilsc an be significantly impaired dur-
ing operation due to, for example, ageing or
soot and fuel accretion. It is therefore
strongly recommende dtoobserve regular oil
changes using an approved engine oil with the
appropriate SAE classification. Brake fluid
G
WARNING
The brake flui dcontinuously absorbs mois-
ture from the air. This results in the boiling
point of the brake flui dlowering. If the boiling
point of the brake flui distoo low,v apour
pockets may form when the brakes are sub-
jected to aheavy load. This would impair brak-
ing efficiency. There is arisk of an accident.
Have the brake flui drenewe datthe prescri-
bed intervals.
Comply with the important safety notes for
service products when handling brake fluid
(Y page4 73).
The brake flui dchange interval scan be found
in the Service Booklet.
Only use brake flui dapproved by Mercedes-
Benz according to MB Approva l331.0.
Information about approved brake flui dcan
be obtained at any qualified specialist work-
shop or on the Internet at
http://bevo.mercedes-benz.com.
i Have the brake flui
dregularl yreplaced at
aq ualified specialist worksho pand the
replacement confirmed in the Service
Booklet. Coolant
Important safety notes G
WARNING
If antifreeze comes into contact with hot com- ponents in the engine compartment, it may
ignite. There is arisk of fire and injury.
Let the engine cool downb efore you top up
the antifreeze. Make sure that antifreeze is
not spilled next to the filler neck. Thoroughly
clea nthe antifreeze from components before
starting the engine.
! Only add coolant that has been premixed
with the desired antifreeze protection. You
coul dotherwise damage the engine. Servic
eproducts and capacities
479Technical data Z

Further information on coolants can be
found in the Mercedes-Benz Specifications for Service Products, MB Specifications for Service Products 310.1, e.g. on the Inter-
net at http://bevo.mercedes-benz.com.
Or contact aquali fied specialist workshop.
! Alway
suseasuitabl ecoolant mixture,
eve ninc ountries where hig htemperatures
prevail.
Otherwise, the engine cooling system is not
sufficiently protected from corrosio nand
overheating.
i Have the coolant regularly replaced at a
qualified specialist worksho pand the
replacement confirmed in the Service
Booklet.
Compl ywitht he important safety precautions
for service products whe nhandling coolant
(Y page 473).
The coolant is amixture of water and anti-
freeze/corrosio ninhibitor. It is responsible
for the following:
R anti-corrosion protection
R antifreeze protection
R raising the boiling point
If antifreeze/corrosio ninhibitor is present in
the correct concentration, the boiling point of
the coolant during operation will be approx-
imately 130 †.
The antifreeze/corrosio ninhibitor concentra-
tion in the engine cooling system should:
R be at least 50% .Thisw illp rotect the engine
cooling system against freezing dow nto
approximately -37 †.
R not excee d55% (antifreeze protection
dow nto- 45 †). Hea twillo therwise not be
dissipated as effectively.
Mercedes-Benz recommends an antifreeze/
corrosio ninhibitor concentrate in accord-
ance with MB Specifications for Service Prod- ucts 310.1.
i Whe
nthe vehicle is firs tdelivered ,itisfil-
le dw ithac oolant mixture that ensures adequate antifreeze and corrosio
nprotec-
tion.
i The coolant is checke
datevery mainte-
nance interval at aquali fied specialist
workshop. Windscree
nwasher system
Important safety notes G
WARNING
If windscreen washe rconcentrate comes into
contact with hot components of the engine or
the exhaust system, it can ignite. There is a
ris koff ire and injury.
Make sur ethe windscreen washe rconcen-
trate doe snot come into contact with the filler
neck.
! Do not us
edistille dord e-ionised water in
the washe rfluid reservoir. Otherwise, the
level senso rmay be damaged.
! Only the washe
rfluid sSummerFit and
WinterFit can be mixed. Otherwise, the
spraying nozzles could become blocked.
Compl ywitht he important safety notes for
service products whe nhandling washe rfluid
(Y page 473).
At temperatures above freezing:
X Fil lthe washe rfluid reservoi rwitham ixture
of water and washe rfluid ,e.g. MB Sum-
merFit.
Mix 1partMBS ummerFit to 100 parts water.
At temperatures below freezing:
X Fil lthe washe rfluid reservoi rwitham ixture
of water and washe rfluid ,e.g. MB Winter-
Fit.
For the correct mixing rati orefe rtot he
information on the antifreeze reservoir.
i Add washe
rfluid concentrate, e.g. MB
SummerFit or MB WinterFit, to the washer
fluid al lyea rround. 480
Servic
eproducts and capacitiesTechnical data