2019 MERCEDES-BENZ S-CLASS CABRIOLET sensor

%
Recei ved destinations are sa ved in the pr evi‐
ous destinations.
A prom ptappears on the media displa y.#
A destination has been received without
picture information: selectYes. #
Ifro ute guidance is not active, select Start
Route Guidance .
The route tothe destination is calculated.
The map sho ws thero ute. Route guidance
th en begins.
or #
Ifro ute guidance is active, select Start New
Route Guidance orSet as Next Way Point.
Start New Route Guidance :th ere cei ved des‐
tination address is set as a new destination.
The pr evious destinations and intermediate
destinations are dele ted. Ro ute guidance to
th e new destination begins.
Set as Next Way Point :th ere cei ved destina‐
tion address is set as the next intermediate
destination. Route guidance begins. #
A destination has been received with pic‐
tu re information: selectStart Route Guid-
ance .
Ro ute guidance starts. Ro
ute guidance with cur rent traf fic re ports Tr
af fic information overview
Tr af fic re ports are recei ved using Live Traf fic
Information and are used forro ute guidance.
This service is una vailable in some countries.
There may be dif fere nces between the traf fic
re ports recei ved and the actual road and traf fic
conditions.
Impor tant information on Live Traf fic Informa‐
tion:
R Current tra ffic reports are recei ved via the
Internet connection.
R The traf fic situation is upda ted at short, regu‐
lar inter vals.
R The subsc ript ion information sho ws thest a‐
tus (→ page276). In
fo rm ation on theve hicle's position is regular ly
sent toDaimler AG. The da tais immediately ren‐
de red anonymous byDaimler AGand forw arded
to the tra ffic data pr ovider. Using this data, traf‐
fi c re ports releva nt totheve hicle's position are
sent totheve hicle. The vehicle acts as a sensor
fo rth eflow of traf fic and helps toimpr ovethe
qu ality of the tra ffic reports.
If yo u do not wish totransmit your vehicle posi‐
tion, you can ha vethis service deactivated at an
authorized Mercedes-Benz Center.
Displaying subscription information
Re quirements:
R The vehicle is equipped with Live Traf fic
Information.
Multimedia sy stem:
, Navigation .
Z Options
The subscription expiration date is automatically
displa yed:
R one month before theex piration date.
R one week before theex piration date.
R ontheex piration date. 276
Multimedia sy stem

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

Obser
vethefo llowing information: Note
s on cleaning and car eA voiding vehicle damage
Wheels/rims Usewate r and acid-free wheel cleaners. R
Do not use acidic wheel cleaners toremo vebrake dust.
This could damage wheel bolts and brake components.
R Toavoid cor rosion of the brake discs and brakepads, drive
th eve hicle for a few minutes af ter cleaning before parking
it. The brake discs and brakepads warm up and dry out.
Wi ndo ws
Cleanthe windo wsonthe inside and outside using a damp
clo thand cleaning agents recommended byMercedes-Benz. Do not use dry clo
ths or abrasive or sol vent-based cleaning
agents toclean the inside of windo ws.
Wi per blades
Fold out the wiper blades and clean them using a damp clo th.D o not clean the wiper blades too of ten.
Ex terior lighting
Cleanthe lenses with a wet sponge and mild cleaning agent,
e.g. car sha mpoo. Only use cleaning agents or cleaning clo
thsth at are suitable
fo r plast ic lenses.
Sensors Cleanthe sensors in the front and rear bumper and in the
ra diator grill with a soft clo thand car shampoo. When using a po
werwa sher, maintain a minimum dis tance of
11 .8 in (30 cm).
Re ar view camera
and 360° Camera R
Open the camera co ver with the multimedia sy stem
(→ page 190).
R Use clean water and a soft clo thtoclean the camera lens. Do not use a po
werwa sher.
Ta ilpipes
Clean with cleaning agents recommended byMercedes-Benz,
particular lyin the winter and af terwa shing theve hicle. Do not use acidic cleaning agents. Maintenance and care
353

The sy
stem checks the tire pressure and the tire
te mp erature of the tires ins talled on theve hicle
by means of a tire pressu resensor.
New tire pressure sensors, e.g. in winter tires,
are automatically taught-in during thefirs t jour‐
ney they are used.
If th ere is a subs tantial pressure loss or if the
tire temp erature is excessive, you will be warned
in thefo llowing ways:
R via display messa ges (→ page 450)
R viathe0077 warning lamp in the instrument
clus ter (→ page 474)
The tire pressu remonitoring sy stem is only an
aid. It is the driver's responsibility toset the tire
pressure tothere commended cold tire pressure
suitable forth e operating situation. Set the tire
pressure for cold tires using a tire pressu re
ga uge. Notethat the cor rect tire pressure forthe
cur rent operating situation mu stfirs t be taught-
in to the tire pressure monitoring sy stem.
In most cases, the tire pressure monitoring sys‐
te m will auto maticallyupdate the new refere nce
va lues af teryo u ha vechanged the tire pressure.
Yo u can, ho wever,also update there fere nce val‐ ues
byrestarting the tire pressure monitoring
sy stem manually (→ page 383).
Sy stem limitations
The sy stem may be impaired or may not function
in thefo llowing situations:
R Ifth e tire pressure is set incor rectly
R Ifth ere is a sudden pressure loss caused, for
ex ample, byafo re ign object penetrating the
tire
R Ifth ere is a malfunction caused byano ther
ra dio signal source
Make sure toobser vethefo llowing fur ther rela‐
te d subjec t:
R Notes on tire pressure (→ page377)
Che cking the tire pressure with the tire pres‐
sure moni toring sy stem
Requ irements:
R The ignition is switched on. On-board computer:
, Service .
Tires
One of thefo llowing displa ysappears:
R Cur rent tire pressure of ea chwheel:
R Tire pressure will be displayed after driving a
few minutes
R Tire Pressure Monitor Active: thete ach-in
process of the sy stem is not yet comple te.
The tire pressure are already being moni‐
to re d. #
Compare the tire pressure with there com‐
mended tire pressure forth e cur rent operat‐
ing condition (→ page 379). Obser vethe
no tes on tire temp erature (→ page377).
% The values displa yed in the multifunction dis‐
play may deviate from those of the tire pres‐
sure gauge as they referto sea le vel.At high
altitudes, the tire pressure value indicated by
a pressure gauge are higher than those
shown bythe on-board computer. In this
case, do not reduce the tire pressure. 382
Wheels and tires

Obser
vethefo llowing when selecting, ins talling
and replacing tires:
R Only use tires and wheels of the same type
(summer tires, winter tires, MOEx tended
tires) and the same make.
R Only ins tall wheels of the same size on one
axle (left and right).
It is only permissible toins tall a dif fere nt
wheel size in theeve nt of a flat tire in order
to drive tothe specialist workshop.
R Only ins tall tires of the cor rect size onto the
wheels.
R Vehicles with a tire pressure monitoring
sy stem: All ins talled wheels must be equip‐
ped with functioning sensors forth e tire
pressure monitoring sy stem.
R Attemp eratures below 45 °F (7 °C), use win‐
te r tires or all-season tires mar ked M+S for
all wheels.
Wi nter tires bearing the004D snowflake sym‐
bol in addition tothe M+S marking pr ovide
th e best possible grip in wintry road condi‐
tions. R
For M+S tires, only use tires with the same
tread.
R Obser vethe maximum permissible speed for
th e M+S tires ins talled.
If th is is below theve hicle's maximum speed,
th is must be indicated byan appropriate
label in the driver's field of vision.
R Break in new tires at moderate speeds for
th efirs t 60 miles (100 km).
R Replace the tires af ter six years at the latest,
re ga rdless of wear.
R When replacing with tires that do not fea‐
ture run-flat characteristics: vehicles with
MOExtended tires are not equipped with a
TIREFIT kit at thefa ctor y.Equip theve hicle
with a TIREFIT kit af terre placing with tires
th at do not feature run-flat characteristics,
e.g. winter tires.
Fo r more information on wheels and tires, con‐
tac t a qualified specialist workshop.
Be sure toalso obse rveth efo llowing fur ther
re lated subjects:
R Notes on tire pressure (→ page377) R
Tire and Loading In form ation placard
(→ page 384)
R Tire size designation, load-beari ng capacity,
speed rating and load ind ex (→page 391)
R Tire pressure table (→ page379) Note
s onrotating wheels &
WARNING Risk of inju rythro ugh dif fer‐
ent wheel sizes
Inter changing the front and rear wheels if the
wheels or tires ha vediffere nt dimensions
may se verely impair the driving characteris‐
tics.
The wheel brakes or wheel suspension com‐
ponents may also be damaged. #
Rotate front and rear wheels on lyifthe
wheels and tires are of the same dimen‐
sions. 398
Wheels and tires

&
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. #
Make sure that no windshield washer
concentrate spills out next tothefiller
opening. *
NO
TEBlocked spr aynozzles caused by
mixing windshield washer fluids #
Do 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:
R Abo vefreezing point: e.g. MB SummerFit
R Below 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 410).
* NO
TEDama gedue toincor rect refriger‐
ant If a non-appr
ovedre frigerant is used, the cli‐
mate control sy stem may be damaged. #
Only use there frigerant R‑134a *
NO
TEDama getothe climate control
sy stem due toincor rect refrigerant com‐
pressor oil #
Only use refrigerant compressor oil that
has been appr ovedby Mercedes-Benz. #
Do 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 be car‐
ri ed out only byaqu alified specialist workshop.
All applicable regulations, as well as SAEstand‐
ard J639, must be adhered to. 1
Warning symbols
2 Refrigerant filling capacity
3 Applicable standards
4 PAG oil part number
5 Refrigerant type Te
ch nical da ta415

Display messages
Possible causes/consequences and 0050
0050Solutions #
Have the brake sy stem checked immediately at a qualified specialist workshop. #
Drive on carefully. #
Visit a qualified specialist workshop immediatel y.
0027
(USA only)
004D (Canada only)
Check Brake Fluid Level *T
here is insuf ficient brake fluid in the brake fluid reser voir. &
WARNING Risk of an accident due tolow brake fluid le vel
If th e brake fluid le vel is too lo w,the braking ef fect and the braking characteristics may be impaired. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions.
Do not continue driving under any circums tances. #
Consult a qualified specialist workshop. #
Do not add brake fluid. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do not
continue driving under any circums tances. #
Do not add brake fluid. #
Consult a qualified specialist workshop.
Radar Sensors Dirty See
Operator's Manual *T
heradar sensor sy stem is malfunctioning. Possible causes are:
R Dirt on the sensors
R Heavy rain or snow 424
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and 0050
0050Solutions
Drive More Slowly *Y
ou are driving toofast forth e selected vehicle le vel. #
In order toadjust theve hicle le vel,yo u must not drive at speeds greater than 50 mph (80 km/h). #
In order toadjust theve hicle le vel during trailer operation, you must not drive at speeds greater than 19 mph
(30 km/h).
Blind Spot Assist Currently
Unavailable See Operator's
Manual *B
lind Spot Assist is temp orarily una vailable.
The sy stem limits ha vebeen reached (→ page 202). #
Drive on.
Once the cause of the problem is no longer present, the sy stem will be available again.
or #
Ifth e display message does not disappear, stop theve hicle while paying attention toroad and traf fic conditions
and restart the engine. #
If necessar y,clean there ar bumper. If the bumper is extreme lydirty, the sensors in the bumper may be mal‐
functioning. Active Steering Assist Inop-
erative *A
ctive Steering Assist is malfunctioning. Active Dis tance Assi stDISTRONIC remains available. #
Visit a qualified specialist workshop. Display messages and
warning/indicator lamps 433