engine overheat MERCEDES-BENZ E-CLASS SALOON 2016 Owners Manual

&
WARNING Risk of accident due to
unsuitable foot we ar
Operating the pedals may be impaired by
we aring unsuitable foot we ar, e.g.:
R plat form shoes
R high-heeled shoes
R slippers #
Alw ayswe ar suitable foot we ar when
driving so that you can operate the ped‐
als safel y. &
WARNING Risk of accident if the ignition
is switched off while driving
If yo u swit choff the ignition while driving,
functions releva nt tosaf ety are restricted or
no longer available. This may ef fect, for
ex ample, the po werst eering sy stem and the
brake forc e boosting.
Yo u will then need touse considerably more
fo rc eto steer and brake. #
Do not switch off the ignition while driv‐
ing. &
WARNING Risk ofexhaust gas poisoning
Combustion engines emit poisonous exhaust
ga ses such as carbon monoxide. Inhaling
th ese exhaust gases causes poisoning. #
Never lea vethe engine running in an
enclosed space wi thout suf ficient venti‐
lation. &
WARNING Risk of skidding and of an
accident due toshifting down on slippery
ro ad sur faces
If yo u shift down on slippery road sur faces to
inc rease the engine braking ef fect, the drive
wheels may lose traction. #
Do not shift down on slippery road sur‐
fa ces toinc rease the engine braking
ef fect. &
DANG ER Risk of fata l injuries due topoi‐
sonous exhaust gases
If th eta ilpipe is bloc ked or suf ficient ventila‐
tion is not possible, poisonous exhaust gases
such as carbon monoxide may enter theve hi‐
cle. This is the case, forex ample, if theve hi‐
cle is stuck in sn ow. #
When the engine or thest ationary
heater are running, keep theta ilpipe
and the area around theve hicle clear of
sno w. #
Open a window on the side of theve hi‐
cle facing the wind toensure an ade‐
qu ate supply of fresh air. &
WARNING Risk of accident due tothe
brake sy stem overheating
If yo u lea veyour foot on the brake pedal
when driving, the brake sy stem may over‐
heat.
This increases the braking dis tance and the
brake sy stem may evenfa il. Driving and parking
157

#
Immedia tely rinse fuel off your skin with
soap and water. #
If fuel comes into contact with your
ey es, immediately rinse them thor‐
oughly with clean water.Seek medical
attention immediately. #
Ifyo u swallow fuel, seek medical atten‐
tion immediatel y.Do not induce vomit‐
ing. #
Change immediately out of clo thing that
has come into con tact wi thfuel. &
WARNING Risk offire and explosion due
to electros tatic charge
Electros taticch arge can cause spa rks and
th ereby ignite fuel vapours. #
Touch the me talvehicle body before
opening the fuel filler cap or touching
th e pump nozzle.
This dischar ges any electros tatic charge that
may ha vebuilt up. &
WARNING Risk offire from fuel mixture
Ve hicles with a diesel engine:
If yo u mix diesel fuel with petrol, theflash
point of the fuel mixture is lo werth an that of
pure diesel fuel.
While the engine is running, component
pa rts in theex haust sy stem may overheat
without warning. #
Neverre fuel using petrol. #
Never mix petrol with diesel fuel. *
NO
TEDama gecaused bythe wrong fuel Fu
elthat does not con form totherequ ired
qu ality can lead toinc reased wear as well as
damage tothe engine and exhaust sy stem. #
Only use the fuel recommended. *
NO
TEDama gecaused bythe wrong fuel Ve
hicles with a petrol engine: Even small amounts of
the wrong fuel could
re sult in damage tothe fuel sy stem, the
engine and the emission control sy stem. #
Only refuel using premium-grade unlea‐
ded fuel that con form sto EN 228, or an
equi valent specification.
Fu el of this specification may con tain up to
10 %ethanol. Your vehicle is suitable for use
with E10 fuel.
Do not refuel using:
R Diesel
R E85, E100
R Petrol containing me thanol (M15, M30,
M85, M100)
R Petrol wi thadditives con taining me tal
If yo u accidentally refuel with the wrong fuel: #
Do not switch the ignition on. #
Consult a qualified specialist workshop. Driving and parking
167

Yo
u can limit the speed as follo ws:
R Variable: for speed limits, e.g. in built-up
areas.
R Perm anen t:for long-term speed restrictions,
e.g. when driving wi thwinter tyres fitted.
If yo ufa ilto adapt your driving style, the limiter
can neither reduce therisk of an accident nor
ove rride the la wsof ph ysics. It cannot take into
account road, weather or traf fic conditions. The
limiter is only an aid. You are responsible forthe
dis tance totheve hicle in front, forve hicle
speed, for braking in good time and forst ay ing
in lane.
Yo u can operate theva riable limiter with the
cruise control le ver.Yo u can store any road
speed abo ve20 km/h. You can also per form
settings while theve hicle is stationary if the
ve hicle has been star ted.
Kickdown
If yo u depress the accelerator pedal be yond the
pressure point (kickdown), the limiter is
switched topassive mode. The Limiter passive
message appears in the multifunction displa y.Af
ter completion of kickdown, theva riable lim‐
iter is activated again in thefo llowing situations:
R ifth e driven speed drops below thestored
speed.
R ifth estored speed is called up.
R ifyo ustore a new speed.
Operating cruise control or theva riable lim‐
iter &
WARNING Risk of accident due to
unknown stored speed
If yo u call up thestored speed and this is
lo we rth an your cur rent speed, theve hicle
decelerates.
If yo u do not kn owthestored speed, the
ve hicle could decelerate unexpectedly. #
Take into account the tra ffic situation
before calling up thestored speed. #
Ifth estored speed is not known, store
th e desired speed again. Change into a lo
werge ar in good time on long
and steep downhill gradients. Take particular no
te ofthis when driving a laden vehicle. By
doing so, you will make use of the braking ef fect
of the engine. This relie vesth e load on the brake
sy stem and pr events the brakes from overheat‐
ing and wearing tooqu ickl y.
Re quirements:
Cruise control
R Cruise control is selected.
R ESP ®
must be switched on, but not inter ven‐
ing.
R The driving speed mu stbe at least 20 km/h.
Va riable Limiter
R The vehicle has been star ted.
R The variable limiter is selec ted. Driving and parking
191

Ve
hicles with Traf fic Sign Assist and wide‐
screen cockpit: detected instructions and traf‐
fi c signs appear in the speedome ter
( → page 229).
* NO
TEEngine dama gedue toexc essively
high engine speeds The engine will be damaged if
you drive with
th e engine in theov errevving range. #
Do not drive wi th the engine in theove r‐
re vving range. The fuel supply is inter
rupted toprotect the
engine when there d band in rev counter 3
(o ve rrev ving range) is reached.
During no rmal operating conditions, coolant
te mp erature display 4may rise to120 °C. &
WARNING Danger of bu rns when open‐
ing the bonn et
If yo u open the engine bonn etwhen the
engine has overheated or during a fire inthe
engine compartment, you could come into contact with hot
gases or other escaping
operating fluids. #
Before opening the bonn et, allow the
engine tocool down. #
Intheeve nt of a fire inthe engine com‐
partment, keep the engine bonn et
closed and call thefire service. Plug-in
hybrid: make sure that youre ad the
separate Owner's Manual. Otherwise, you may
fa ilto recognise dangers. Overview of the buttons on the
steering
wheel 1
Button group:
% Main menu and ba ckbutton (on-board
computer)
8 Switches sound off/on
W Increases thevo lume
X Decreases thevo lume
2 Touch Control (on-board co mputer)
3 Touch Control (multimedia sy stem)
4 Button group:
% Main menu and back button (multime‐
dia sy stem) Instrument Display and on-board computer
245

Opening/closing
the bonnet &
WARNING Risk of accident due todriv‐
ing with the engine bonn etunlo cked
An unloc ked engine bonn etmay open up
when theve hicle is in motion and block your
vie w. #
Never unlock the engine bonn etwhen
driving. #
Before every trip, ensure that the
engine bonn etis loc ked. &
WARNING Risk of accident and inju ry
when opening and closing the engine
bonn et
When opening or closing the engine bonn et,
it may suddenly drop into the end position.
There is a risk of injury for an yone in the
engine bonn et's range of mo vement. #
Only open or close the engine bonn et
when there are no persons in the
engine bonn et's range of mo vement. &
WARNING Danger of bu rns when open‐
ing the bonn et
If yo u open the engine bonn etwhen the
engine has overheated or during a fire inthe
engine compartment, you could come into
contact with hot gases or other escaping
operating fluids. #
Before opening the bonn et, allow the
engine tocool down. #
Intheeve nt of a fire inthe engine com‐
partment, keep the engine bonn et
closed and call thefire service. &
WARNING Risk of inju rydue tomoving
parts
Cer tain components in the engine compart‐
ment may continue tomo veor suddenly
mo veagain even af terth e ignition has been
switched off, e.g. the cooler fan.
Ma kesure of thefo llowing before per form ing
ta sks in the engine compartmen t: #
Switch the ignition off. #
Neverto uch the danger zone sur round‐
ing moving co mponent parts, e.g. the
ro tation area of thefa n. #
Remo vejewe llery and watches. #
Keep items of clo thing and hair away
from moving parts. &
WARNING Risk of inju ryfrom touching
co mp onent parts under voltage
The ignition sy stem and the fuel injection
sy stem workunder high voltage. If youto uch
co mp onent parts which are under voltage,
yo u could recei vean electric shoc k. #
Neverto uch co mponents of the ignition
sy stem or the fuel injection sy stem
when the ignition is switched on. &
WARNING Danger of bu rns from hot
component parts in the engine compart‐
ment
Cer tain component parts in the engine com‐
partment may be very hot, e.g. the engine, Maintenance and care
365

#
Slowly turn the cap half a turn toallow
pressure toescape. #
Park theve hicle on a flat sur face. #
Check the coolant temp erature display in the
instrument clus ter.
The coolant temp erature must be below
70 °C. #
Slowly turn cap 1anti-clockwise torelie ve
ov erpressure. #
Continue turning cap 1anti-clockwise and
re mo veit.
The coolant le vel is cor rect:
R Ifth e engine is cold, up tomar ker bar 2
R Ifth e engine is warm, up to1.5 cm over
mar ker bar 2 #
If necessar y,top up with coolant that has
been tested and appr oved byMercedes-
Benz.
R Further information on coolant (→ page 432) To
pping up the windsc reen washer sy stem &
WARNING Danger of bu rns from hot
component parts in the engine compart‐
ment
Cer tain component parts in the engine com‐
partment may be very hot, e.g. the engine,
th era diator and parts of theex haust sy stem. #
Let the engine cool down and only
to uch the component parts described
below: &
WARNING Danger of bu rns when open‐
ing the engine bonn et
If yo u open the engine bonn etwhen the
engine has overheated or during a fire inthe
engine compartment, you could come into
contact with hot gases or other escaping
operating fluids. #
Before opening the engine bonn et,
allow the engine tocool down. #
Intheeve nt of a fire inthe engine com‐
partment, keep the engine bonn et
closed and call thefire service. &
WARNING ‑ Risk of fire and injury due to
windscreen washer concentrate
Wi ndsc reen washer concentrate is highly
fl ammable. It could ignite if it comes into
con tact wi thhot engine component parts or
th eex haust sy stem. 37 0
Maintenance and care

*
NO
TEDama gecaused bynon-app roved
additives Even small amounts of
the wrong additive
may lead tomalfunctions occur ring. #
Only add cleaning additives recommen‐
ded byMercedes-Benz tothe fuel. Mercedes-Benz
recommends that you use fuel
brands that ha veadditives.
The fuel grade available in some countries may
not be suf ficient. Residue could build up in the
fuel injection sy stem as a result. In this case, in
consultation with a Mercedes-Benz Service
Cent re,th e fuel may be mixed with the cleaning
additive recommended byMercedes-Benz.
Alw ays obser vethe no tes and mixing ratios
speci fied on the conta iner.
Information on fuel grades forve hicles with
a diesel engine
Gene ral no tes
Obser vethe no tes on operating fluids
(→ page 425). &
WARNING Risk offire thro ugh fuel mix‐
ture
If yo u mix diesel fuel with petrol, theflash
point of the fuel mixture is lo werth an that of
pure diesel fuel.
While the engine is running, component
pa rts in theex haust sy stem may overheat
unnoticed. #
Neverre fuel using petrol. #
Never mix diesel fuel with petrol. *
NO
TEDama gethro ugh wrong fuel Even small amounts of
the wrong fuel could
re sult in damage tothe fuel sy stem, the
engine and the emission control sy stem. #
Only refuel using diesel fuel that con‐
fo rm sto European standard EN 590, or
an equivalent specification. #
Vehicles with diesel particle filters:
in countries outside the EU, only refuel
with lo w-sulphur Euro diesel with a sul‐
phur content of under 50 ppm. Do not use
thefo llowing:
R petrol
R marine diesel
R heating oil
R bio-diesel
R veget able oil
R paraf fin
R kerosene Information on low outside
temperatures
Re fuel your vehicle with as much winter diesel as
possible at the beginning of winter.
Before changing overto winter diesel, the fuel
ta nk should be em pty, if possible. When refilling
fo rth efirs t time, keep the fuel le vel lo w,for
ex ample at reser veleve l. The fuel tank can be fil‐
led as usual at the next refuelling.
Fu rther information on fuel can be found:
R Atafilling station.
R Ataqu alified specialist workshop 428
Tech nical da ta

&
WARNING Risk of an accident due to
va pour poc kets form ing in the brake sys‐
tem
The brake fluid constantly absorbs moisture
from the air. This lo wersthe boiling point of
th e brake fluid. If the boiling point is too lo w,
va pour poc kets may form inthe brake sys‐
te m when the brakes are applied hard.
This impairs the braking ef fect. #
Have the brake fluid rene we d at the
specified inter vals. Ha
ve the brake fluid regularly changed at a quali‐
fi ed specialist workshop.
Only use brake fluid appr ovedby Mercedes-Benz
according toMB-F reigabe or MB-Appr oval 33 1.0.
Fu rther information on brake fluid:
R Inthe Mercedes-Benz Specifications for
Operating Fluids at http://be vo.mercedes-
benz.com
R Ataqu alified specialist workshop Coolant
Note
s on coolant
Obser vethe no tes on operating fluids
(→ page 425). &
WARNING Risk offire ‑ and inju ryfrom
antifreeze
If antifreeze comes into contact with hot
component parts in the engine compart‐
ment, it may ignite. #
Allow the engine tocool down before
yo uto p up the antif reeze. #
Make sure that no antifreeze spills out
next tothefiller opening. #
Thoroughly clean the antif reeze from
component parts before starting the
ve hicle. *
NO
TEDama gecaused byincor rect cool‐
ant #
Only add coolant that has been pre‐
mixed with therequ ired antifreeze pro‐
te ction.
Fu rther information on coolant:
R Inthe Mercedes-Benz Specifications for
Operating Fluids 310.1, e.g. online at
http://be vo.mercedes-benz.com.
R Ataqu alified specialist workshop. *
NO
TEOverheating at high outside tem‐
peratures If an inapp
ropriate coolant is used, the
engine cooling sy stem is not suf ficiently pro‐
te cted against overheating and cor rosion at
high outside temp eratures. #
Alw ays use an appropriate coolant. Ha
ve the coolant regularly changed at a qualified
specialist workshop. 432
Tech nical da ta

Display messages
Possible causes/consequences and M
MSolutions
? Coolant Stop vehicle
Switch engine off *T
he coolant is too hot. #
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. &
WARNING Danger of bu rns when opening the bonn et
If yo u open the engine bonn etwhen the engine has overheated or during a fire inthe engine compartment, you
could come into contact wi thhot gases or other escaping operating fluids. #
Before opening the bonn et, allow the engine tocool down. #
Intheeve nt of a fire inthe engine compartment, keep the engine bonn etclosed and call thefire service. #
Wait until the engine has cooled down. #
Make sure that the air supply tothera diator is not obstructed. #
Avoiding high loads on the engine, drive on tothe nearest qualified specialist workshop. In doing so, ensure that
th e coolant temp erature display remains below 120 °C. Displ
aymessa ges and warning/indicator lamps 465

Display messages
Possible causes/consequences and M
MSolutions
d Vehicle is operational
Switch off the ignition
before exiting *Y
ou are leaving theve hicle when it is in a ready-to-drive state. #
When you lea vetheve hicle, switch off the ignition and take theke y with you. #
Ifyo u do not lea vetheve hicle, switch off the electrical consumers, e.g. the seat heater. Otherwise, the12 ‑volt
battery might discha rge and it will then only be possible tostart theve hicle using a donor battery (s tarting
assis tance).
Transmission Malfunction
Stop *
The transmission is malfunctioning. The transmission shi fts to position iautomaticall y. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. #
Switch the transmission toposition j. #
Consult a qualified specialist workshop.
Reversing not poss. Con-
sult workshop *T
he transmission is malfunctioning. Reversege ar can no lon ger be engaged. #
Consult a qualified specialist workshop.
Stop vehicle Leave engine
running Wait Transmission
cooling *T
he transmission has overheated. Pulling away can be temp orarily impaired or not possible. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do not
continue driving under any circums tances. #
Start the engine. #
Wait until the display message disappears before pulling away. Displ
aymessa ges and warning/indicator lamps 483