2019 MERCEDES-BENZ S-CLASS CABRIOLET ignition

Engine oil
Checking
the engine oil le vel with an on-
board computer
Re quirements:
The engine oil le vel is de term ined during driving.
De term ining the engine oil le vel can take up to
30 minutes with a normal driving style and even
longer with an active driving style.
In order torecei veare sult as quickly as possi‐
ble:
R Warm upthe engine.
R Park theve hicle on a le vel sur face.
R Lea vethe engine running at idle speed.
On-board compu ter:
, Service .
Engine Oil Level
Yo u will see one of thefo llowing messa ges in
th e multifunction displa y:#
Measuring Engine Oil Level...: measurement
of the oil le vel is not yet possible. Repeat the
requ est af ter a maximum of 30 minutes' driv‐
ing. #
Engine Oil Level OK andthe bar display for
indicating the oil le vel in the multifunction
display is green and is between "min" and
"max": the oil le vel is cor rect. #
Engine Oil Level Add 1.0 l andthe bar display
fo r indicating the oil le vel in the multifunction
display is orange and is below "min": add
1. 1 US qt (1 liter) of engine oil. #
Reduce Engine Oil Level andthe bar display
fo r indicating the oil le vel in the multifunction
display is orange and is abo ve"max": drain
off theex cess engine oil. Consult a qualified
specialist workshop. #
For Engine Oil Level Switch Ignition On:
switch on the ignition tocheck the engine oil
le ve l. #
Engine Oil Level System Inoperative: sensor
defective or not inse rted. Consult a qualified
specialist workshop. #
Engine Oil Level System Currently Unavail.:
close the hood. Ad
ding engine oil &
WARNING Risk of bu rns from hot com‐
ponent parts in the engine compartment
Cer tain components in the engine compart‐
ment can be very hot, e.g. the engine, the
ra diator and parts of theex haust sy stem. #
Allow the engine tocool down and only
to uch co mponent parts described in the
fo llowing. &
WARNING Risk offire and injury from
engine oil
If engine oil comes into con tact wi thhot
component parts in the engine compart‐
ment, it may ignite. #
Make sure that no engine oil is spilled
next tothefiller opening. #
Allow the engine tocool off and thor‐
oughly clean the engine oil from compo‐
nent parts before starting theve hicle. 340
Maintenance and care

Note
s on cleaning and care of the soft top Obser
vethefo llowing information: Note
s on cleaning and car eA voiding soft- top damage
Light soiling R
Clean the soft top when dr y.
R Rinse with clean water. R
Never use gasoline, thinners, tarre mo ver or stain remo ver
or other or ganic sol vents.
R Remo vebird droppings immediatel y,as they are cor rosive
and can therefore cause the soft-to pfabric toleak.
R Never use a high-p ressure cleaner.
R Do not use sharp-edged equipment toremo veice and
sno w.
Norm
alto heavy
soiling R
Clean the soft top with a brush and clean water.
R Clean stains and other dirt with a brush and soft-top
cleaning agents recommended and appr ovedby
Mercedes-Benz.
R Alw ays brush from front toback in the direction of the
fa bric. Fr
equent cleaning reduces the soft top's resist‐
ance todirt. Torestore the ef fect, clean the soft
to p with the care products and cleaning agents
re commended and appr ovedby Mercedes-Benz.
Incor rect cleaning and care, as well as aging,
can cause the soft-to p seams toleak. Ha vethe
soft-top seams sealed at a qualified specialist
wo rkshop, e.g. at your Mercedes-Benz service
cen ter. %
Place a suitable co verove rth e soft top if you
plan tolea vetheve hicle outside for a long
period of time. Cleaning AIRC
AP Cleaning
the wind deflector
Re quirements:
R The soft top is closed R
The elect ric pa rking brake is applied
R The ignition is switched on.
% Never use a po werwa sher toclean the net
of the wind deflector. 350
Maintenance and care

#
Open the co ver on the lo wer center console. #
Press button 1.
The wind deflector between the windshield
and the soft top will extend. #
Light soiling: clean wind deflector net 1
with a soft brush or a damp clo th. #
Heavier soiling: clean wind deflector net 1
with care products and cleaning agents rec‐
ommended and appr ovedfo r Mercedes-Benz. #
Subse quently, rinse wi thclean water.
Cleaning the wind screen
Re quirements:
R The soft top is open.
R The elect ric pa rking brake is applied.
R The ignition is switched on. #
Open the co ver on the lo wer center console. #
Press button 1.
The AIR CAP wind screen mo ves upwards. Maintenance and care
351

#
Clean wind sc reen net 1with a damp clo th
in conjunction with the care products and
cleaning agents recommended and appr oved
fo r Mercedes-Benz. Cleaning
thefo lding wind screen Re
quirements:
R Never use a po werwa sher toclean the net of
th e wind deflector. R
Obser vethe no tes on the cor rect ins tallation
and stow ing location of thefo lding wind
screen (→ page 80). #
Clean the net of thefo lding wind screen with
a damp clo thin conjunction with the care
products and cleaning agents recommended
and appr ovedby Mercedes-Benz. Note
s on care of vehicle parts &
WARNING Risk of entrapment if the
windshield wipers are swit ched on while
th e windshield is being cleaned
If th e windshield wipers are set in motion
while you are cleaning the windshield or
wiper blades, you can be trapped bythe
wiper arm. #
Alw ays switch off the windshield wipers
and the ignition before cleaning the
windshield or wiper blades. &
WARNING Risk of bu rning from theta il‐
pipe or tailpipe trim
The tailpipe and tailpipe trim can become
ve ry hot. If you come into contact with these
car parts, you could burn yourself. #
Alw ays be particular lycareful when in
th e vicinity of theta ilpipe and tailpipe
trims and supervise children very
closely when in this area. #
Before any con tact, allow the car parts
to cool down. 352
Maintenance and care

#
Push the plug of hose 5into flange 6of
tire sealant bottle 1until the plug engages. #
Place tire sealant bottle 1head down wards
into recess 2ofthe tire inflation compres‐
sor. #
Remo vethe cap from valve 7 onthefa ulty
tire. #
Screw filling hose 8onto valve 7. #
Insert connec tor4 into a 12V soc ket in
yo ur vehicle. #
Switch on the ignition. #
Press on and off switch 3onthe tire infla‐
tion compressor.
The tire inflation compressor is switched on.
The tire is inflated. Fir st, tire sealant is pum‐
ped into the tire. The pressure may brief ly
ri se toappr oximately 500 kPa (5 bar/73 psi).
Do not switch off the tire inflation compres‐
sor du ring this phase. #
Let the tire inflation compressor runfo r a
maximum of eight minutes.
The tire should then ha veattained a tire
pressure of at least 180 kPa (1.8 bar/26 psi).
If tire sealant lea ksout, make sure you clean the
af fected area as quickly as possible. It is prefera‐
ble touse clear water.
If yo uge t tire sealant on your clo thing, ha veit
cleaned as soon as possible with per chloroe thy‐
lene.
If a ti repressure of 180 kPa (1.8 bar/26 psi)
has not been attained af ter eight minutes: #
Switch off the tire inflation compressor. #
Unscr ew thefilling hose from theva lve of the
fa ulty tire.
Please no tethat tire sealant may leak out when
unscr ewing thefilling hose. #
Drive forw ards or reve rseve ry slowly for
appr oximately 33 ft(10 m). #
Pump up the tire again.
Af ter a maximum of eight minutes the tire
pressure must be at least 180 kPa (1.8 bar/
26 psi). &
WARNING Risk of accident due tothe
specified tire pressure not being reached
If th e specified tire pressure is not reached
af te rth e specified time, the tire is too badly
damaged. The tire sealant cannot repair the
tire in this ins tance.
Dama ged tires and a tire pressure that is too
low can significantly impair braking and han‐
dling characteristics. #
Do not continue driving. #
Consult a qualified specialist workshop. 360
Breakdown assis tance

R
Alw ays make sure that nei ther you nor the
battery is elect rostatically charge d.
R Keep away from fire and open flames.
R Do not lean overth e batter y.
Obser vethe additional following points when
ch arging the battery:
R Only use battery charge rs tested and
appr ovedfo r Mercedes-Benz.
R Read the battery charge r's operating instruc‐
tions before charging the batter y.
Obser vethe additional following points during
st arting assis tance:
R Starting assis tance may only be pr ovided
using batteries with a nominal voltage of
12 V.
R The vehicles must not touch.
R Gasoline engine: Onlyaccept starting assis‐
ta nce if the engine and exhaust sy stem are
cold. St
arting assi stance and charging the12 V
battery Re
quirements:
R The vehicle is secured with the electric park‐
ing brake.
R The transmission is in position 005D.
R The ignition and all electrical consumers are
switched off.
R The hood is open. #
Slide co ver3 of positive clamp 4onthe
jump-s tarting connection point in the direc‐
tion of the ar row. #
Connect positive clamp 4onyour vehicle to
th e positive pole of the donor battery using
th e jumper cable/charging cable. Alw ays
begin with positive clamp 4onyour own
ve hicle firs t. 366
Breakdown assi stance

&
WARNING Risk of accident due tolimi‐
te d saf ety-re lated functions during the
to wing process
Saf ety-re lated functions are limited or no lon‐
ge rav ailable in thefo llowing situations:
R the ignition is switched off.
R the brake sy stem or po werst eering sys‐
te m is malfunctioning.
R the energy supply or the on-board electri‐
cal sy stem is malfunctioning.
When your vehicle is then towe daw ay, signif‐
icantly more ef fort may be requ ired tosteer
and brake than is no rmally requ ired. #
Use a tow bar. #
Make sure that thesteering wheel can
mo vefreely, before towing theve hicle
aw ay. *
NO
TEDama gedue toexcessive tracti ve
po wer If
yo u pull away sharpl y,the tractive po wer
may be too high and theve hicles could be
damaged. #
Pull away slowly and smoo thly. Loading the
vehicle for transport #
Obser vethe no tes on towing away
( → page 368). #
Connect theto w bar totheto wing eyeto
load theve hicle. #
Shift the automatic transmission toposition
005C.
% The automatic transmission may be loc ked
in position 005Dintheeve nt of dama getothe
electrics. Toshift to005C , pr ovide the on-
board electrical sy stem with po wer
( → page 366). #
Load theve hicle onto the transpor ter. #
Shift the automatic transmission toposition
005D. #
Use the electric parking brake tosecure the
ve hicle against rolling away. #
Only secure theve hicle bythe wheels.
Ve hicles with ADS PLUS (Adaptive Damping
Sy stem PLUS) &
WARNING Risk of an accident when
transporting vehicles with Adaptive
Damping Sy stem PLUS
The reduced damping forc es on theve hicle
being transpor ted can cause theve hicle/
trailer combination tostart toswing.
As a result, when transporting vehicles with
th eAd aptive Damping Sy stem PLUS, the
ve hicle/trailer combination may start toskid.
Consequentl y,yo u could lose cont rol of your
ve hicle. #
When transporting, ensure that:
R The vehicle has been loaded onto
th e transpor ter cor rectly 37 0
Breakdown assis tance

Electrical fuses
Note
s on electrical fuses &
WARNING Risk of accident and inju ry
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. #
Alw aysre place faulty fuses with speci‐
fi ed new fuses conta iningthe cor rect
amperage. *
NO
TEDama gecaused byincor rect fuses Incor
rect fuses may cause damage toelectri‐
cal components or sy stems. #
Only use Mercedes-Benz appr oved
fuses with the cor rect fuse rating. Blown fuses mu
stbe replaced with fuses of the
same rating, which you can recognize bythe
color and fuse rating. The fuse ratings and fur‐ th
er information tobe obser ved are lis ted in the
fuse assignment diagram.
* NO
TEDama geor malfunctions caused
by moisture Moisture may cause dama
getothe electrical
sy stem or cause it tomalfunction. #
When the fuse box is open, make sure
th at no moisture can enter the fuse
box. #
When closing the fuse box, make sure
th at the seal of the lid is positioned cor‐
re ctly on the fuse box. If
th e newly inser ted fuse also blo ws, ha vethe
cause traced and rectified at a qualified special‐
ist workshop, e.g. an authorized Mercedes-Benz
Center.
Ensure thefo llowing before replacing a fuse:
R The vehicle is secured against rolling away
R All electrical consumers are switched off
R The ignition is switched off The electrical fuses are located in
thefo llowing
fuse bo xes:
R Fuse box in the engine compartment on the
driver's side (→ page373)
R Fuse box on the driver's side of the cockpit
(→ page 375)
R Fuse box in the front passenger foot we ll
(→ page 375) Opening an
d closing the fuse box in the
engine co mpartment Requ
irements:
R Obser vethe no tes on electrical fuses
(→ page 373).
R Have thefo llowing tools readily available:
- a dry clo th
- a sc rewdriver Breakdown assis
tance 373