lock MERCEDES-BENZ E-CLASS CABRIOLET 2018 Service Manual

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The alert is set forth e cur rent artist or trac k.
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Information on Smart Favorite s and Tune
St art
St ations in thest ation presets can be added as
smart favo rite s. Smart favo rite sst ations are
automatically sa vedto te mporary storage in the
bac kground. If youch ange toa smart favo rite
st ation, you can repla y,pause or actively skip
fo rw ard or back tobroadcasts which you ha ve
missed. If Tune Start is activated and youch ange
to ano ther smart favo rite station, the music
tra ck cur rently pl aying on thest ation is automat‐
ically restar ted from the beginning of the trac k.
Ac tivating/deactivating Tune Start
Multimedia sy stem:
00865DGLR00CFZ 2SWLRQV00CF7XQH6WDUW
00BBActivate 0073or deacti vate 0053 the function.
Playback controls
Multimedia sy stem:
00865DGLR00CF
y__3OD\EDFN &RQWURO
Yo u can pause the playback of the cur rent sta‐
tion or skip forw ard or backward in the timeline. This lea
ves live mode toaccess the internal tem‐
porary storage.
00BBTo fast forw ard/r ewind: turn the controller
anti-clockwise or clockwise.
00BBTo jump tothe pr evious/next song: slide
th e controller tothe left or right.
00BBTo pause playback: select00CF.
00BBToreturn tolive mode: navigatetothe end
of the timeline.
Displaying satellite radio serv ice information
Multimedia sy stem:
00865DGLR00CFÞ 5DGLR 6RXUFH00CF6LU
LXV;0 5DGLR00CFZ 2SWLRQV
00BBSelect 6HUYLFH ,QIRUPDWLRQ .
Sound
Tone settings
Information about the sound sy stem
The sound sy stem has a total output of 100
wa tts and is equipped wi th7 speake rs. It is
Multimedia sy stem 31
1

Non-operational times with the batte rydis‐
connected
The AS SYST PLUS service inter val display
can only calculate the service due da tewhen
th e batte ryis connected.
00BBNotedown the service due date displa yed on
th e instrument display before disconnecting
th e battery (
→page 314).
Engin ecom partment
Active hood (pedestrian pr otection)
Operation of the active hood (pedestrian pro‐
te ction)
In cer tain accident situations, therisk of injury
to pedestrians can be reduced bythe actuation
of the active hood. The rear area of the engine
hood is raised byappr oximately 85 mm.
Fo rth e drive tothewo rkshop, reset the trig‐
ge red active hood yourself. Ifth e active hood
has been triggered, pedestrian pr otection may
be limited. A
qu alified specialist workshop must re-ins tate
th e full functionality of the active hood.
The active hood is not available in all countries.
Re setting the active hood
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 .
00BBWith your hand flat, push down active hood
1 inthe area around the hinges on bo th
sides (ar rows).
The engine hood must engage in position.
00BBIf th e active hood can be raised slightly at
th ere ar in the area of the hinges, repeat the
st ep until it engages cor rectl y.
Opening/closing the hood
0071
WARNING Risk of accident if the engine
hood is unlatched while driving
An unloc ked engine hood may open up when
th eve hicle is in motion and block your vie w.
00BBNever unlatch the engine hood while
driving.
00BBBefore every trip, ensure that the
engine hood is latched.
Maintenance and care 31
5

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

call 1-800-FOR-MERCedes (inthe USA) or
1-800-387-0 100 (in Canada).
00BBCor rect the tire pressure if it is still at least
13 0 kPa (1.3 bar/19 psi). See theTire and
Loading Info rmation placard on the driver's
side B‑pillar or the tire pressure table in the
fuel filler flap forva lues.
00BBTo increase the tire pressure: switchon
th e tire inflation compressor.
00BBTo reduce the tire pressure: press pressure
re lease button 1next tomanome ter2.
00BBWhen the tire pressure is cor rect, unscr ew
th efilling hose from theva lve of the sealed
tire.
00BBScr ew theva lve cap onto the tire valve of the
sealed tire.
00BBPull the tire sealant bottle out of the tire
inflation compressor.
The filling hose stay s on the tire sealant bot‐
tle.
00BBDrive tothe nearest qualified specialist work‐
shop and ha vethe tire, tire sealant bottle and
fi lling hose replaced there.
Bat tery (vehicle)
Note s onthe12 V battery
0071
WARNING Risk of an accident due to
wo rkcar ried out incor rectly on the bat‐
te ry
Wo rkcar ried out incor rectly on the battery
can, forex ample, lead toa short circuit. This
can lead tofunction restrictions in saf ety-re l‐
eva nt sy stems, forex ample the lighting sys‐
te m, ABS (anti-lock braking system) or ESP®
(Elect ronic Stability Prog ram). The operating
saf etyof your vehicle may be restricted.
Yo u could lose cont rol of theve hicle in the
fo llowing situations:
Rwhen braking
Rin theeve nt of ab rupt steering maneuvers
and/or when theve hicle's speed is not
adap tedto thero ad conditions
00BBIn theeve nt of a short circuit or a simi‐
lar incident, contact a qualified special‐
ist workshop immediately.
00BBDo not continue driving.
00BBAlw ays ha vewo rkon the battery car ried
out at a qualified specialist workshop.
RFu rther information on ABS (→page 154)
RFurther information on ESP®
Fo r saf etyre asons, Mercedes-Benz recommends
th at you only use batte ries which ha vebeen tes‐
te d and appr oved foryo ur vehicle byMercedes-
338
Breakdown assis tance

00CEVehicles with automatic transmission: if
th e automatic transmission cannot be shif‐
te dto position 005C, orthe multifunction dis‐
play in the instrument clus ter does not show
anything, ha vetheve hicle transpor ted
aw ay(
→page 346). A towing vehicle with lift‐
ing equipment is requiredforve hicle trans‐
por tation.
0075 NO
TEDama gedue to to wing away at
exc essively high speeds or over long dis‐
ta nces
The driv etra in could be damaged when tow‐
ing at excessively high speeds or over long
dis tances.
00BBA towing speed of 30 mph (50 km/h)
must not be exceeded.
00BBAtowing dis tance of 30 miles (50 km)
must not be exceeded.
0071
WARNING Risk of accident when towing
a ve hicle which is too heavy
If th eve hicle being tow- star ted or towe d
aw ay is heavier than the permissible gross
mass of your vehicle, thefo llowing situations
can occur:
RThe towing eye may become de tach ed.
RThe vehicle/trailer combination may
swer veoreve nov erturn.
00BBIf ano ther vehicle is tow- star ted or
to we daw ay, its weight must not exceed
th e permissible gross mass of your ow n
ve hicle.
If a vehicle must be tow- star ted or towe daw ay,
its weight must not exceed the permissible gross
mass of theto wing vehicle.
00BBInformation on the permissible gross mass of
th eve hicle can be found on theve hicle iden‐
tification plate.
00BBVe hicles with automatic transmission: do
not open the driver's door or front passenger
door, otherwise the automatic transmission
automatically shifts toposition 005D.
00BBInstallth eto wing eye (→page 348).
00BBAttach theto w bar.
0075 NO
TEDama gedue toincor rect connec‐
tion
00BBOnly connect theto w rope or tow bar to
th eto wing eyes.
00BBDeactivate the automatic locking mechanism
(→page 64).
00BBDo not activate the HOLD function.
00BBDeactivate Active Brake Assi st(→page 159).
00BBVe hicles with automatic transmission:
shift the automatic transmission toposition
005C.
00BBRe lease the electric parking brake.
Breakdown assis tance 34
5

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

Setting upthefo lding wheel chock
Prepa ring theve hicle for a wheel change
Re quirementsRThe requ ired tire-change tool kit is available.
If yo ur vehicle is not equipped with the tire-
ch ange tool kit, consult a qualified specialist
wo rkshop tofind out about suitable tools.
RThe vehicle is not on a slope.
RThe vehicle is on solid, non-slippery and le vel
ground .
00BBApplythe electric parking brake manually.
00BBMo vethe front wheels tothest ra ight-ahead
position.
00BBVe hicles with automatic transmission:
shift into position 005D.
00BBVehicles with AIR BODY CONT ROL:set the
normal vehicle le vel (→page 173).
00BBSwitch off the engine.
00BBMake sure that the engine cannot bestar ted.
00BBPlace choc ks orother suitable items under
th e front and rear of the wheel that is diago‐
nally opposite the wheel youwish tochange.
00BBRe mo vethe hub caps if necessary
(→page 377).
00BBRa ising theve hicle (→page 378).
Re moving and in stalling hub caps
Re quirement:RThe vehicle is prepared for a wheel change
(→page 377).
Plas tic hub cap
00BBToremo ve:turn the center co ver of the hub
cap anti-clockwise and remo vethe hub cap.
00BBTo install: make sure that the center co ver of
th e hub cap is turned anti-clockwise.
00BBPo sition the hub cap and turn the center
co ver clockwise until the hub cap engages
ph ysically and audibly.
Wheels and tires 37
7

Aluminum hub cap
00BBToremo ve:position soc ket2 on hub cap
1.
00CE The soc ket can be found inthe tire-change
to ol kit.
00BBPo sition wheel spanner 3on soc ket2.
00BBUsing wheel spanner 3, turn hub cap1
counter-clo ckwise and remo veit.
00BBTo install: position hub cap 1and turn until
it is comple tely flush withth e wheel.
00BBPo sition soc ket2 on hub cap 1.
00BBAttach wheel spanner 3tosoc ket2 and
tighten the hub cap clockwise.
Specified tightening torq ue: 18lb-ft
(25 Nm).
00BBRa ise theve hicle (→page 378).
Ra ising theve hicle when changing a wheel
Re quirements:RThere are no persons in theve hicle.
RThe vehicle has been prepared for a wheel
ch ange (→page 377).
RThe hub caps ha vebeen remo ved
(→page 377).
Impor tant no tes on using the jack:
Ronly use theve hicle-specific jack that has
been tested and appr ovedby Mercedes-Benz
to raise theve hicle.
Rthe jack is only designed forra ising and hold‐
ing theve hicle for a short time while a wheel
is being changed and not for maintenance
wo rkunder theve hicle.
Rthe jack must be placed on a firm ,fl at and
non-slip sur face. If necessar y,use a lar ge,
load-bearing, non-slip underla y.
Rthefo ot ofthe jack must be positioned verti‐
cally under the jack support point.
Ru les of conduct when theve hicle is raised:
RNe ver place your hands or feet under the
ve hicle.
RDo not lie under theve hicle.
RDo not start the engine and do not release
th e electric parking brake.
RDo not open or close any doors or the trunk
lid.
37 8
Wheels and tires

00BBPosition jack 2at jack support point 1.
00BBTurn ratchet ring spanner 3clockwise until
jack 2sits comple tely on ja cksupport point
1 and the base of the jack lies evenly on
th e ground.
00BBContinue toturn ratchet ring spanner 3
until the tire is raised a maximum of 1.2 in
(3 cm) off the ground.
00BBLoosen and remo vethe wheel (→page 380).
Re moving a wheel
Requirement:RThe vehicle is raised (→page 378).
When changing a wheel, avoid applying any forc e
to the brake discs, since this could impair the
le ve l of com fort when braking.
0075 NO
TEDama getothre ading from dirt on
wheel bolts
00BBDo not place wheel bolts in sand or on
a dirty sur face.
00BBUn scr ew the uppermost wheel bolt com‐
ple tely.
00BBScr ew centering pin 1instead of the wheel
bolt into theth re ading.
00BBUn scr ew there maining wheel bolts fully.
00BBRe mo vethe wheel.
00BBIns tallth e new wheel (→page 380).
Installing a new wheel
Re quirement:RThe wheel is remo ved (→page 380).
380
Wheels and tires