engine coolant MERCEDES-BENZ E-CLASS CABRIOLET 2018 Owner's Manual

1Speedom eter →
199
2 00E5 ESP
®→
446
3 003E003D Turn signal light →
112
4 00CC Powe r assi sted steering malfunction →
454
5 Multifunction display →
202
6 0025 ABS malfunction →
446
7 00B9 Check Engine →
455
8 Tach ome ter →
199
9 0028 This indicator lamp has no function
A Elect ric park ing brake applied (red) →
446
0049 USA only
0024 Canada only
B Brakes (red) →
446
0027 USA only
004D Canada only
C 003D Electrical fault →
455
D00BA Distance warning →
453
E 00AC Coolant too hot/cold →
455
F Coolant temp erature display →
199
G 004D Brakes (yell ow) →
446
H 0024 Electric pa rking brake (yellow) →
446
I 0075 Restra int sy stem
J 00E9 Seat belt not fastened →
453
K 0060 Parking lights →
111
L Fuel le vel indicator
00B6 Fuelreser vewith fuel filler flap location
indicator →
455
M 0057 High beam →
112
N 0058 Low beam →
111
O 005E Rear fog light →
112
P AIR BODY CONTROL malfunctioning →
453
Q 0077 Tire pressure monitoring sy stem →
459
R 00BB ESP
®OFF →
446
At aglance – Warning and indicator lamps 9

1Speedom eter →
199
2 AIR BODY CONTROL malfunctioning →
453
3 003E003D Turn signal light →
112
4 Multifunction display →
202
5 Tach ome ter →
199
6 00BB ESP
®OFF →
446
00E5 ESP
®→
446
7 0057 High beam →
112
0058 Low beam →
111
0060 Parking lights →
111
8 00AC Coolant too hot/cold →
455
9 Coolant temp erature display →
199
A 00BA Distance warning →
453
B 00CC Powe r assi sted steering malfunction →
454
C 003D Electrical fault →
455
D Brakes (red) →
446
0027 USA only
004D Canada only
E 00E9 Seat belt not fastened →
453
F Fuel le vel indicator
G 00B6 Fuelreser vewith fuel filler flap location
indicator →
455
H 005E Rear fog light →
112
I 0075 Restra int sy stem
J 0028 Indicator lamp has no function
K 00B9 Check Engine →
455
L 004D Brakes (yellow) →
446
M Electric pa rking brake applied (red) →
446
0049 USA only
0024 Canada only
N 0077 Tire pressure monitoring sy stem →
459
O 0025 ABS malfunction →
446
P 0024 Electric pa rking brake (yellow) →
446
At aglance – Warning and indicator lamps 11

RActive Dis tance Assist DISTRONIC
(→pa ge 162)
0075 NO
TEEngine damage duetoexc essively
high engine speeds
The engine will be damaged if youdriv ewit h
th e engine in theov errevving range.
00BBDo 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 tach ome ter3
(o ve rrev ving range) is reached.
During no rmal operating conditions, coolant
te mp erature display 4may rise tothere d
mar k.
0071
WARNING Danger of burn s when open‐
ing the hood
If yo u open the hood when the engine has
ove rheated or during a fire inthe engine
compartment, you could come into contact
wit h hot gases or other escaping operating
fl uids.
00BBBefore opening the hood, allow the
engine tocool down.
00BBIntheeve nt of a fire inthe engine com‐
partment, keep the hood closed and
call thefire service.
Overview of the butto ns onthest eering
wheel
1But ton group:
¤ Main menu and ba ckbutton (on-board
computer)
0063 Switches sound off/on 0081
Increases thevo lume
0082 Decreases thevo lume
2Touch Control (on-board co mputer)
3Touch Control (multimedia sy stem)
4Button group:
¤ Main menu and back button (multime‐
dia sy stem)
£ LINGU ATRO NIC or voice control sys‐
te m
0061 Makes/accepts a call
0076 Rejects/ends a call
Ope rating the on-board co mputer
0071
WARNING Risk of dist raction from infor‐
mation sy stems and communications
equipment
If yo u operate information and communica‐
tion equipment integ rated in theve hicle
when driving, youwill be distracted from the
traf fic situation. This could also cause youto
lose control of theve hicle.
200
Instrument Display and on-board computer

00BBMake surethat no engine oil is spilled
next tothefiller opening.
00BBAllow the engine tocool off and thor‐
oughly clean the engine oil from compo‐
nent parts before starting theve hicle.
0075 NO
TEEngine damage causedbyan
incor rect oil filter, incor rect oil or addi‐
tives
00BBDo not use engine oils or oil filters
which do not cor respond tothe specifi‐
cations explicitly prescribed forth e
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.
00BBFollow the instructions in the service
inter val display rega rding the oil
ch ange.
0075 NO
TEDama gecaused bytopping up too
much engine oil
Ad ding too much engine oil can cause dam‐
age tothe engine or the catalytic con verter.
00BBHa ve excess engine oil remo ved at a
qu alified specialist workshop.
00BBTu rn cap 1counter-clockwise and remo ve
it.
00BBAd d engine oil.
00BBReplace cap 1and turn it clockwise as far
as it will go.
00BBCheck the oil le vel again (→page 318).
Checking coolant le vel
0071
WARNING Risk of burn s from hot com‐
ponent parts in the engine compartment
Cer tain component parts in the engine com‐
partment can be very hot, e.g. the engine,
th e cooler and parts of theex haust sy stem.
00BBLet the engine cool down and only
to uch the component parts described
as follo ws .
0071
WARNING Danger of burn s from hot
coolant
The engine cooling sy stem is pressurized,
particularly when the engine is warm. If you
Maintenance and care 31
9

openthe cap, you could bescalded byhot
coolant spr aying out.
00BBLet the mo tor cool down before opening
th e cap.
00BBWhen opening the cap, wearglove s and
pr otective eyew ear.
00BBSlowly turn the cap half a turn toallow
pressure toescape.
00BBPark theve hicle on a le vel sur face.
00BBCheck the coolant temp erature display in the
instrument clus ter.
The coolant temp erature must be below
15 8 °F (70 °C).
00BBSlowly turn cap 1counter-clockwise to
re lie ve ove rpressure.
00BBContinue turning cap 1counter-clockwise
and remo veit.
The coolant le vel is cor rect:
Rifth e engine is cold, up tomar ker bar 2.
Rifth e engine is warm, up to0.6 in (1.5 cm)
ov er mar ker bar 2.
00BBIf necessar y,top up with coolant that has
been appr ovedby Mercedes-Benz.
RFurther information on coolant (→page 391)
Ad ding washer fluid tothe windshield
wa sher sy stem
0071
WARNING Risk of burn s from hot com‐
ponent parts in the engine compartment
Cer tain component parts in the engine com‐
partment can be very hot, e.g. the engine,
th e cooler and parts of theex haust sy stem.
00BBLet the engine cool down and only
to uch the component parts described
as follo ws .
0071
WARNING Danger of burn s when open‐
ing the hood
If yo u open the hood when the engine has
ove rheated or during a fire inthe engine
compartment, you could come into contact
wit h hot gases or other escaping operating
fl uids.
00BBBefore opening the hood, allow the
engine tocool down.
320
Maintenance and care

Operatingfluids
Note s on operating fluids
0071
WARNING Risk of injury from operating
fl uids harmful to your health
Operating fluids maybe pois onous and harm‐
ful to yo ur health.
00BBObser vethete xt on the original con‐
ta iners when using, storing or disposing
of operating fluids.
00BBAlw aysst ore operating fluids sealed in
th eir original conta iners.
00BBAlwayske ep children away from operat‐
ing fluids.
00D2ENV IRONMEN TALNO TEEnvironmental
pollution caused byenvironmen tally ir re‐
sponsible disposal
00BBDispose of operating fluids in an envi‐
ro nmentally responsible manner.
Operating fluids include thefo llowing:
RFu els
RLubricants
RCoolant
RBrake fluid
RWi ndshield washer fluid
RClimate cont rol sy stem refrigerant
Only use products app rove dby Mercedes-Benz.
Damage caused bythe use of products on the
ve hicle that ha venot been appr oved is not cov‐
ered bythe Mercedes-Benz warranty or goodwill
ge stures.
Yo u can identify operating fluids appr ovedby
Mercedes-Benz bythefo llowing insc ript ion on
th e conta iners:
RMB-Freigabe (e.g. MB-Fr eigabe 229.51)
RMB-Approval (e.g. MB-App rova l 229.51) Fu
rther information on appr oved operating flu‐
ids:
Rin the Mercedes-Benz Specifications for
Operating Fluids at http://be vo.mercedes-
benz.com (byen tering the designation)
Rin the Mercedes-Benz Specifications for
Operating Fluids in the Mercedes-Benz BeVo
app (by entering the designation)
Rat a qualified specialist workshop
0071
WARNING Risk offire and explosion
caused byfuel
Fu els are highly inflammable.
00BBYou must avoidfire , open flames, creat‐
ing spar ksand smoking.
00BBBefore refueling, switch off the engine
and, if ins talled in your vehicle, thest a‐
tionary heater.
0071 WARNING Risk of injury from fuel
Fu els are poisonous and harmful to your
health
Te ch nical da ta387

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

Engine
Display messagesPossible causes/consequences and 0050Solutions
&KHFN &RRODQW /HYHO 6HH
2SHUDWRU
V 0DQXDO *T
he coolant le vel is too lo w.
0075 NO
TEEngine damage duetoinsuf ficient coolant
00BBAv oid long journe yswith insuf ficient coolant.
00BBAd d coolant.
00AC
&RRODQW 7RR +RW 6WRS 9HKL
FOH 7XUQ (QJLQH 2II *T
he coolant is too hot.
00BBPull over and stop theve hicle safely and switch off the engine, paying attention toroad and traf fic conditions.
0071
WARNING Danger of burn s when opening the hood
If yo u open the hood when the engine has overheated or during a fire inthe engine compartment, you could
come into contact with hot gases or other escaping operating fluids.
00BBBefore opening the hood, allow the engine tocool down.
00BBIntheeve nt of a fire inthe engine compartment, keep the hood closed and call thefire service.
00BBWa it until the engine has cooled down.
00BBMake sure that the air supply tothera diator is not obstructed.
00BBAv oiding 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 there d area.
Display messages and warning/indicator lamps 421

Displaymessages
Possible causes/consequences and 0050Solutions
00B2
&KHFN (QJLQH 2LO $W 1H[W
5HIXHOLQJ*T
he engine oil le vel has dropped tothe minimum le vel.
0075 NO
TEEngine damage causedbydriving with insuf ficient engine oil00BBAv oid long journe yswith insuf ficient engine oil.
00BBCheck the engine oil le vel when next refueling.
To p up the engine oil (
→page 318).
No tes on engine oil (
→page 389).
00B6
)XHO /HYHO /RZ *T
he fuel supply has dropped into there ser verange.
00BBRe fuel.
00B6
*DV &DS /RRVH *T
here has been pressure loss in the fuel sy stem. The fuel filler cap is not closed cor rectly or the fuel sy stem is
leaking.
00BBClose the fuel filler cap.
00BBIf th e fuel filler cap was already proper lyclosed: consult a qualified specialist workshop.
00AC
*T hefan mo tor is defective.
00BBAv oiding 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 there d marking.
424
Display messages and warning/indicator lamps

Warning/indicator lamp
Possible causes/consequences and 0050Solutions
00AC
Coolantwarning lamp The
red coolant warning lamp is lit while the engine is running.
Po ssible causes are:RThe temp erature sensor is malfunctioning
RCoolant le velto o low
RThe air supply tothera diator is obstructed
RThe radiator fan is de fective
If th ere is an additional warning tone, the coolant temp erature has exceeded the maximum permissible temp erature.
0071
WARNING Danger of burn s when opening the hood
If yo u open the hood when the engine has overheated or during a fire inthe engine compartment, you could come
into contact with hot gases or other escaping operating fluids.
00BBBefore opening the hood, allow the engine tocool down.
00BBIntheeve nt of a fire inthe engine compartment, keep the hood closed and call thefire service.
00BBPull over and stop theve hicle safely and switch off the engine, paying attention toroad and traf fic conditions. Do
not continue driving under any circums tances.
00BBObser vethe messages in the multifunction displa y.
If th e coolant temp erature display is at the lo wer end of thete mp erature scale:
00BBConsult a qualified specialist workshop.
Display messages and warning/indicator lamps 457