2018 MERCEDES-BENZ E-CLASS CABRIOLET engine

00BBIntheeve nt of a fire inthe engine com‐
partment, keep the hood closed and
call thefire service.
0071
WARNING ‑ 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.
00BBRe mo vecap 1bytheta b.
00BBAd dwa sher fluid.
Cleaning and care
Informa tiononwashing theve hicle in a car
wa sh
0071
WARNING Risk of accident due to
re duced braking ef fect af terwa shing the
ve hicle
The braking ef fect is reduced af terwa shing
th eve hicle.
00BBAfterth eve hicle has been washed,
brake carefully while paying attention to
th e traf fic conditions until the braking
ef fect has been ful lyrestored.
To avo id damage to yourvehicle when using a
car wash, ensure thefo llowing beforehand:
RTo avo id possible water ingress in theve hi‐
cle, it is preferable touse car washes which
allow the high-pressure pre-wash tobe deac‐
tivated (specification forth e con vertible pro‐
gram).
RIt is imperative toavo id a subsequent hot-
wa x treatment.
Maintenance and care 321

apron and aface mas k.Immediate ly
ri nse electrolyte or acid splashes off
with clean water.Consult a docto r if
necessar y.
Wear saf etygl asses.
Ke ep children away.
Obser vethis Opera tor's Manual.
If yo udo not intend touse theve hicle over an
ex tended pe riod of time:
RAc tivate standby mode, or
RConnect the battery toa batte rycharge r
appr ovedby Mercedes-Benz, or
RConsult a qualified specialist workshop to
disconnect the battery
St arting assist ance andcharging the12 V
battery
Ve hicles with a lithium-ion battery
00BBWhen charging the battery and during start‐
ing assis tance, al ways use the jump-s tart
connection point in the engine compartment.
0075 NO
TEDama getothe battery from over‐
vo ltage
When charging using a batte rycharge r with‐
out a maximum charging voltage, the battery
or the on-board electronics may be damaged.
00BBOnly use battery charge rs with a maxi‐
mum charging voltage of 14.4 V.
All other vehicles
00BBWhen charging the battery and during start‐
ing assis tance, al ways use the jump-s tart
connection point in the engine compartment. 0075
NO
TEDamaging the battery thro ugh
ove rvoltage
When charging using a batte rycharge r with‐
out a maximum charging voltage, the battery
or theve hicle electronics may be damaged.
00BBOnly use battery charge rs with a maxi‐
mum charging voltage of 14.8 V.
0071
WARNING Risk ofexplosion from hydro‐
ge nga s igniting
A battery generates hydrogen gas during the
ch arging process. If there is a short circuit or
spar ksstart toform ,th ere is a danger of the
hy drogen gas igniting.
00BBMake sure that the positive term inal of
th e connected battery does not come
into conta ct withvehicle parts.
00BBNe ver place me tal objects or tools on a
batter y.
00BBWhen connecting and disconnecting the
batter y,yo u must observ eth e descri‐
bed order forth e battery clamps.
34 0
Breakdown assis tance

00BBWhen givingstarting assis tance, al ways
make sure that you only connect bat‐
te ry term inals with identical polarity.
00BBDuring starting assis tance, you must
observ eth e described order for con‐
necting and disconnecting the jumper
cables.
00BBDo not connect or disconnect the bat‐
te ry cla mp s while the engine is running.
0071
WARNING Risk ofexplosion during
ch arging process and starting assis tance
During thech arging process and starting
assis tance, the battery may release an explo‐
sive gas mixture.
00BBAv oid fire , open flames, creating spar ks
and smoking.
00BBMake sure that there is suf ficient venti‐
lation du ring thech arging process and
during starting assis tance.
00BBDo not lean over a batter y.
Ifth e indicator/warning lamps in the instrument
clus ter do not light up at low temp eratures, it is
ve ry likely that the dischar ged battery has fro‐
zen.
0071 WARNING Risk ofexplosion from a fro‐
zen battery
A dischar ged battery may freeze at temp era‐
tures slightly abo veor below freezing point.
During starting assis tance or battery charg‐
ing, batte rygas may be released.
00BBAlw aysth aw a frozen batte ryout firs t
before charging it or per form ing start‐
ing assis tance.
The service li feof a battery that has been
th awe d may be dramatically shor tened.
It is recommended that you ha veathaw ed bat‐
te ry checked at a qualified specialist workshop. All
vehicles
0075 NO
TEDama gecaused bynumerous or
ex tended attem ptsto start the engine
Nume rous or extended attem ptsto start the
engine may damage the catalytic con verter
due tonon-combu sted fuel.
00BBAv oid numerous and extended attem pts
to start the engine.
Obser vethefo llowing points during starting
assis tance and when charging the battery:
ROnly use undamaged jumper/charging
cables with a suf ficient cross-section and
insula tedte rm inal clamps.
RNon- insulated parts of thete rm inal clamps
must not come into con tact wi thother me tal
parts while the jumper/charging cable is
connected tothe battery/jump-s tart connec‐
tion point.
RThe jumper/charging cable must not come
into contact wi thany parts which may mo ve
when the engine is running.
Breakdown assist ance34
1

RAlways make sure that nei ther you nor the
battery is elect rostatically charge d.
RKe ep away from fire and open flames.
RDo not lean overth e batter y.
RWhencharging: only use battery charge rs
te sted and appr ovedby Mercedes-Benz and
re ad the battery charge r's operating instruc‐
tions before charging the batter y.
Obser vethe additional following points during
st arting assis tance:
RSt arting assis tance may only be pr ovided
using batteries with a nominal voltage of
12 V.
RThe vehicles must not touch.
RGa soline engine: onlyaccept starting assis‐
ta nce if the engine and exhaust sy stem are
cold.
00BBSecure theve hicle byapplying the electric
parking brake.
00BBAu tomatic transmission: shiftthe transmis‐
sion toposition 005D.
00BBMake sure that the ignition and all electrical
consumers are switched off.
00BBOpen the hood.
00BBSlide co ver1 of positive clamp 2onthe
jump-s tarting connection point in the direc‐
tion of the ar row.
00BBConnect positive clamp 2onyour vehicle to
positive pole of the donor battery using the
jumper/charging cable. Alw ays begin with
positive clamp 2onyour ow nve hicle firs t.
00BBDu ring thest arting assist ance proce‐
dure: start the engine of the donor vehicle
and run at idle speed.
00BBConnect the negative pole of the donor bat‐
te ry and ground po int3 ofyour ow nve hicle
by using the jumper/charging cable. Begin
with the donor battery firs t.
00BBDu ring starting assist ance:start the
engine of your ow nve hicle.
00BBDuring thech arging process: start the
ch arging process.
00BBDuring starting assist ance:letthe engines
ru nfo r se veral minutes.
00BBDuring starting assist ance:before discon‐
necting the jumper cable, switch on an elec‐
trical consumer in your ow nve hicle, e.g. the
re ar wind owheater or lighting.
When thest arting assis tance/charging process
is compl ete:
34 2
Breakdown assis tance

Perm itted towing me thods
Ve hicle equipment/to wing
me thod
Bo th axles on thegr oundFront axle raisedRe ar axle raised
Ve hicles with manual transmission Yes, maximum 31miles (50 km) at
31 mp h (50 km/h) Ye
s, maximum 31miles (50 km) at
31 mp h (50 km/h) Ye
s, maximum 31miles (50 km) at
31 mp h (50 km/h)
Ve hicles with automatic transmis‐
sion Ye
s, maximum 31miles (50 km) at
31 mp h (50 km/h) No
Yes, if thesteering wheel is fixe d in
th e center position with a steering
wheel loc k.
4MATIC vehicles Yes, maximum 31miles (50 km) at
31 mp h (50 km/h) No
No
Towing wit h araised axle: towing should be
per form ed byato wing compan y.
Towing theve hicle with bo thaxles on the
gr ound
00BBObser vethe no tes on the permitted towing
me thods (→page 343) (→page 344).
00BBMake sure that the battery is connected and
ch arge d.
When the battery is dischar ged:
Rthe engine cannot bestar ted.
Rth e electric parking brake cannot bereleased
or applied.
Rve hicles with automatic transmission: the
automatic transmission cannot be shif tedto
position 005Cor005D.
34 4
Breakdown assis tance

Installingtheto wing eye
00BBPress the mark on co ver1 inwa rds and
re mo ve.
00BBScr ew intheto wing eyeclockwise as far as it
will go and tighten.
00CE Make sure that co ver1 engages in the
bumper when youre mo vetheto wing eye. 0075
NO
TEDama gedue toincor rect use of
th eto wing eye
When a towing eye is used toreco ver a vehi‐
cle, theve hicle may be damaged in the proc‐
ess.
00BBOnly use theto wing eyeto to waw ay or
to w start theve hicle.
To w starting theve hicle (eme rgency engine
st arting)
Ve hicles with automatic transmission
0075 NO
TEDama getothe automatic trans‐
mission due to towstarting
The automatic transmission may be damaged
in the process of tow starting vehicles with
automatic transmission.
00BBVe hicles with automatic transmission
must not be tow star ted.
00BBVe hicles with automatic transmission must
not be tow star ted.
Electrical fuses
Note s on electrical fuses
0071
WARNING Risk of accident and injury
due to ov erloaded lines
If yo u manipulate or bridge a faulty fuse or if
yo ure place it with a fuse with a higher
amperage, the electric line could be overloa‐
ded.
This could result in a fire .
00BBAlw aysre place faulty fuses with speci‐
fi ed new fuses conta iningthe cor rect
amperage.
0075 NO
TEDama gecaused byincor rect fuses
Incor rect fuses may cause damage toelectri‐
cal components or sy stems.
00BBOnly use Mercedes-Benz appr oved
fuses with the cor rect fuse rating.
Blown fuses must bereplaced with fuses of the
same rating, which you can recognize bythe col‐
our and fuse rating. For fuses in the engine com‐
34 8
Breakdown assis tance

partment and trunk, only usethose fuses
mar ked with an "S". The fuse ratings are li sted in
th e fuse assignment diagram.
Fu se assignment diag ram: onthe fuse box in
th e trunk (
→page 351).
0075 NO
TEDama geor malfunctions caused
by moisture
Moisture may cause dama getothe electrical
sy stem or cause it tomalfunction.
00BBWhen the fuse box is open, make sure
th at no moisture can enter the fuse
box.
00BBWhen closing the fuse box, make sure
th at the seal of the lid is positioned cor‐
re ctly on the fuse box.
Ifth e newly inser ted fuse also blo ws, ha vethe
cause traced and rectified at a qualified special‐
ist workshop, e.g. a Mercedes-Benz Service Cen‐
te r.
Ensure thefo llowing before replacing a fuse:
RThe vehicle is secured against rolling away.
RAll electrical consumers are switched off.
RThe ignition is switched off.
The electrical fuses are located in various fuse
bo xes:
RFu se box on the driver's side of the engine
compartment (→page 349)
RFu se box on the driver's side of the cockpit
(→page 350)
RFu se box in the front passenger foot we ll
(→page 350)
RFu se box in the trunk on theright-hand side
of theve hicle, when vie wed in the direction
of tr avel (
→page 351)
Fuse box in the engine compa rtment
Observ eth e no tes on electrical fuses
(→page 348).
Re quirements:
RYou need a dry clo thand a scre wdriver. Opening
0071
WARNING Risk of injury from usingthe
windshield wipers while the engine hood
is open
When the engine hood is open and the wind‐
shield wipers are set in motion, you can be
trapped bythe wiper linkage.
00BBAlw ays switch off the windshield wipers
and ignition before opening the engine
hood.
Breakdown assis tance 34
9

00BBTurn clip 2on co ver1 aqu arter-turn to
th e left.
00BBPull co ver1 upwards in the direction of the
ar row .
00BBRemo veany existing moisture from the fuse
box using a dry clo th.
00BBLoosen scr ews4, remo vefuse box lid 3
from theto p.
Closing
00BBCheck whe ther the seal is positioned cor‐
re ctly in the lid.
00BBInsert the lid into the brac ket at there ar of
th e fuse box.
00BBFo ld down lid of the fuse box and tighten
scr ews4.
00BBInsert co ver1 on bo thsides and engage
th e saf etyclips.
00BBTu rn clip 2on co ver1 one quarter-turn to
th eright.
00BBClose the engine hood.
Dashboard fuse box
The fuse box is on the side of the dashboard
under a co ver.
00BBConta ct an au thorized Mercedes-Benz Cen‐
te rfo r fur ther information.
Fu se box in the front-passenger foot we ll
Obser vethe no tes on electrical fuses
(→page 348).
350 Breakdown assis tance