engine MERCEDES-BENZ E-CLASS CABRIOLET 2018 Manual PDF

0075NO
TEPremature wear caused byunlea‐
ded regular gasoline
Unleaded regular gasoline can cause the
engine towe ar more quickly and impair lon‐
ge vity and per form ance.
If unleaded premium grade gasoline is
una vailable and you ha vetorefuel using
unleaded regular gasoline:
00BBOnly fill th e fuel tank tohalf full with
unleaded regular gasoline and refill as
soon as possible with unleaded pre‐
mium grade gasoline.
00BBDo not drive at the maximum speed.
00BBAv oid sudden acceleration and engine
speeds over 3,000 rpm.
Fu rther information on fuel can be found:
Rat a gasst ation
Rat a qualified specialist workshop
RUSA onl y:at http://www.mbusa.com Information on additives in
gasoline
Obser vethe no tes on operating fluids
(
→page 387).
0075 NO
TEDama gecaused bynon-app rove d
additives
Even small amounts of the wrong additive
may lead tomalfunctions occur ring.
00BBOnly add cleaning additives recommen‐
ded byMercedes-Benz tothe fuel.
Mercedes-Benz recommends that you use
br and-name fuels with additives.
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 an authorized Mercedes-Benz
Center, the fuel may be mixed with the cleaning
additive recommended byMercedes-Benz. Be
sure toobser vethe no tes and mixing ratios
speci fied on the conta iner. Ta
nk capacity and fuel reser ve
Capacity
Model Total capacity
Al lmodels 17.4 gal (66.0 l)
Model Of whichreser ve
All model s1 .8gal(7.0 l)
Engine oi l
Notes on engine oil
Obser vethe no tes on operating fluids
(
→page 387).
Te ch nical da ta389

0075NO
TEEngine damage causedbyan
incor rect oil filter, incor rect oil or addi‐
tives
00BBDo not use engine oils or oil filters other
th an those which meet the specifica‐
tions necessary forth e prescribed
service inter vals.
00BBDo not alter the engine oil or oil filter in
order toachie velonger change inter vals
th an prescri bed.
00BBDo not use additives.
00BBHave the engine oil changed af terth e
prescribed inter vals.
Mercedes-Benz recommends that you ha vethe
oil change car ried out at a qualified specialist
wo rkshop.
Fu rther information on engine oils and oil filters:
RIn the Mercedes-Benz Specifications for
Operating Fluids at http://be vo.mercedes-
benz.com (byen tering the designation)
RAt aqu alified specialist workshop Quality and
filling capacity of engine oil
MB- Freigabe or MB-A pproval
Gasoline enginesM B-Freigabe or MB-
Appr oval
All models 229.5, 229.6
Thefollowing values referto an oil change,
including the oil filter.
Re placement amount
Mode lR eplacement
amount
All models6 .9 US qt (6.5 l)
Notes on brake fluid
Obser vethe no tes on operating fluids
(→page 387).
0071 WARNING Risk of an accident due to
va por poc kets form ing in the brake sys‐
te m
The brake fluid constantly absorbs moisture
from the air. This lo wersthe boiling point of
th e brake fluid. Ifth e boiling point is too lo w,
va por poc kets may form inthe brake sy stem
when the brakes are applied hard.
This causes the braking ef fect to be
impaired.
00BBHa ve 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:
Rin the Mercedes-Benz Specifications for
Operating Fluids at http://be vo.mercedes-
benz.com
Rat a qualified specialist workshop
390
Tech nical da ta

Coolant
Notes on coolant
Obser vethe no tes on operating fluids
(
→page 387).
0071 WARNING ‑ Risk of fire and injury from
antifreeze
If antifreeze comes into con tact wi thhot
component parts in the engine compart‐
ment, it may ignite.
00BBAllow the engine tocool down before
adding antifreeze.
00BBMake surethat no antifreeze spills out
next tothefiller opening.
00BBThoroughly clean off any antifreeze
from component parts before starting
th eve hicle.
0075 NO
TEDama gecaused byincor rect cool‐
ant
00BBOnly add coolant that has been pre‐
mixed with therequ ired antifreeze pro‐
te ction.
Fu rther information on coolant:
RIn the Mercedes-Benz Specifications for
Operating Fluids 310.1, e.g. online at
http://be vo.mercedes-benz.com.
RAt aqu alified specialist workshop.
0075 NO
TEOverheating at high outside tem‐
peratures
If an inappro priate 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.
00BBAlw ays use coolant appr ovedby
Mercedes-Benz.
00BBObser vethe instructions in the
Mercedes-Benz Specifications for Oper‐
ating Fluids 310.1.
Ha ve the coolant regularly replaced at a qualified
specialist workshop.
The proportion of cor rosion inhibitor/antifreeze
concentrate in the engine cooling sy stem should
be:
Ra minimum of 50% (antifreeze pr otection
down toappr oximately -35 °F (-37 °C)).
Ra maximum of 55% (antifreeze pr otection
down to-49 °F (-45 °C)).
Coolant filling capacity
Capacity
Model Capacity
All models 12.7 US qt (12.0 l)
Note s on windshield washer fluid
Obser vethe no tes on operating fluids
(→page 387).
Te ch nical da ta391

0071WARNING ‑ Risk of fire and injury from
windshield washer concentrate
Wi ndshield 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.
00BBMake sure that no windshield washer
concentrate spills out next tothefiller
opening.
0075 NO
TEDama getotheex terior lighting
due tounsuit able wind shieldwasher fluid
Uns uitable wind shieldwasher fluid may dam‐
age the plastic sur face of theex terior light‐
ing.
00BBOnly use windshield washer fluid whic h
is also suit ablefor use on plast ic surfa‐
ces, e.g. MB SummerFit or MB Winter‐
Fit.
0075 NO
TEBlocked spr aynozzles caused by
mixing windshield washer fluids
00BBDo not mix MB SummerFit and MB Win‐
te rFit with other windshield washer flu‐
ids.
Do not use distilled or de-ionized water asthefill
le ve l sensor may be triggered er roneously.
Re commended windshield washer fluid:
RAbo vefreezing point: e.g. MB SummerFit
RBelow freezing point: e.g. MB WinterFit
Fo rth e cor rect mixing ratio referto the informa‐
tion on the antif reeze conta iner.
Mix thewa sher fluid with the windshield washer
fl uid all year round.
Re frigerant
Note s onrefrigerants
Obser vethe no tes on operating fluids
(
→page 387). 0075
NO
TEDama gedue toincor rect refriger‐
ant
If a non-appr ovedre frigerant is used, the cli‐
mate control sy stem may be damaged.
00BBOnly use there frigerant R‑134a
0075 NO
TEDama getothe climate control
sy stem due toincor rect refrigerant com‐
pressor oil
00BBOnly use refrigerant compressor oil that
has been appr ovedby Mercedes-Benz.
00BBDo not mix the appr ovedre frigerant
compressor oil with a dif fere nt refriger‐
ant compressor oil.
Wo rkon the climate control sy stem may only be
car ried out byaqu alified specialist workshop. All
applicable regulations, as well as SAEstandard
J639, must be adhered to.
392
Tech nical da ta

Displaymessages
Possible causes/consequences and 0050Solutions
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heradar sensor sy stem is malfunctioning. Possible causes are:
Rsoiling of the sensors
Rheavy rain
Rex tended country driving wi thout other traf fic, e.g. in the desert
Driving sy stems and driving saf etysy stems may be malfunctioning or temp orarily una vailable.
Once the cause of the problem is no longer present, driving sy stems and driving saf etysy stems are available again.
If th e display message does not disappear:
00BBPull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions.
00BBClean all sensors .
00BBRestart the engine.
406
Display messages and warning/indicator lamps

Displaymessages
Possible causes/consequences and 0050Solutions
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heradar sensor sy stem is malfunctioning. Possible causes are:
RSoiling of the sensors
RHeavy rain
REx tended country driving wi thout moving traf fic, e.g. in the desert
Driving sy stems and driving saf etysy stems may be malfunctioning or temp orarily una vailable.
Once the cause of the problem is no longer present, driving sy stems and driving saf etysy stems are available again.
If th e display message does not disappear:
00BBPull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions.
00BBClean all sensors .
00BBRestart the engine.
0075
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he cor responding head air bag is malfunctioning.
0071
WARNING Risk of injury or death duetomalfunctions in the head air bag
If th e head air bag is malfunctioning, it might be triggered unintentionally or might not be triggered at all in the
eve nt of an accident wi tha high rate ofvehicle deceleration.
00BBHa ve the head air bag checked and repaired immediately at a qualified specialist workshop.
00BBConsult a qualified specialist workshop immediatel y.
Displaymessage s andwarning/indicator lamps 407

Displaymessages
Possible causes/consequences and 0050Solutions
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Ve hicles with the Driving Assistance Package: Active Brake Assi stwith cross-traf fic function, Evasi veSteering
Assist or PRE‑SAFE
®PLUS are temp orarily una vailable or only partially available.
Ve hicles without the Driving Assistance pa ckage: Active Brake Assi stistemp orarily una vailable.
The ambient conditions are outside the sy stem limitations.
00BBDrive on.
As soon as the ambient conditions are within the sy stem limitations, the sy stem will become available again.
00BBIfth e display message does not disappear, stop theve hicle while paying attention toroad and traf fic conditions
and restart the engine.
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Ve hicles with Driving Assistance Package: Active Brake Assi stwith cross-traf fic function, Evasi veSteering
Assist or PRE‑SAFE
®PLUS is malfunctioning.
Ve hicles without Driving Assistance Package: Active Brake Assi stis malfunctioning.
00BBVisit a qualified specialist workshop.
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PRE‑SAFE
®functions are malfunctioning.
00BBVisit a qualified specialist workshop.
408
Display messages and warning/indicator lamps

Displaymessages
Possible causes/consequences and 0050Solutions
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Ve hicles without Active Steering Assis t:the camera view is restricted.
Po ssible causes are:
Rdirt on the windshield in the camera's field of vision
Rheavy rain, snow or fog
Driving sy stems and driving saf etysy stems may be malfunctioning or temp orarily una vailable.
Once the cause of the problem is no longer present, driving sy stems and driving saf etysy stems are available again.
If th e display message does not disappear:
00BBPull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions.
00BBClean the windshield.
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lind Spot Assist is temp orarily una vailable.
The sy stem limitations ha vebeen reached (
→page 193).
00BBDrive on.
Once the cause of the problem is no longer present, the sy stem will be available again.
or
00BBIf th e display message does not disappear, stop theve hicle while paying attention toroad and traf fic conditions
and restart the engine.
00BBIf necessar y,clean there ar bumper. If the bumper is extreme lydirty, the sensors in the bumper may be mal‐
functioning.
41 6
Displ aymessage s andwarning/indicator lamps

Displaymessages
Possible causes/consequences and 0050Solutions
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ctive Blind Spot Assist istemp orarily una vailable.
The sy stem limitations ha vebeen reached (
→page 193).
00BBDrive on.
Once the cause of the problem is no longer present, the sy stem will be available again.
00BBIfth e display message does not disappear, stop theve hicle while paying attention toroad and traf fic conditions
and restart the engine.
%OLQG 6SRW $VVLVW 1RW $YDLO
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hen you es tablish the electrical connection tothe trailer, Blind Spot Assist is una vailable.
00BBPress the left-hand side Touch Control and ackn owledge the display message.
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hen you es tablish the electrical connection tothe trailer, Active Blind Spot Assi stis una vailable.
00BBPress the left-hand Touch Control and ackn owledge the display message.
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lind Spot Assist is malfunctioning.
00BBVisit a qualified specialist workshop.
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ctive Blind Spot Assist is malfunctioning.
00BBVisit a qualified specialist workshop.
Display messages and warning/indicator lamps 41
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Displaymessages
Possible causes/consequences and 0050Solutions
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ctive Parking Assist and Parking Assist PARKTRONI Caremalfunctioning .
00BBStop theve hicle, paying attention toroad and traf fic conditions, and restart the engine.
00BBIfth e display message continues tobe displa yed, consult a qualified specialist workshop.
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raffic Sign Assist is temp orarily una vailable.
00BBDrive on.
Once the cause of the problem is no longer present, the sy stem will be available again.
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he camera view is restricted. Possible causes are:
Rdirt on the windshield in the camera's field of vision
Rheavy rain, snow or fog
Driving sy stems and driving saf etysy stems may be malfunctioning or temp orarily una vailable.
Once the cause of the problem is no longer present, driving sy stems and driving saf etysy stems will become availa‐
ble again.
If th e display message does not disappear:
00BBPull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions.
00BBClean the windshield.
7UDIILF 6LJQ $VVLVW ,QRSHUD
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raffic Sign Assist is malfunctioning.
00BBVi sit a qualified specialist workshop.
41 8
Displ aymessage s andwarning/indicator lamps