2019 MERCEDES-BENZ S-CLASS CABRIOLET tire size

Ne
verexc eed maximum tire pressure 1speci‐
fi ed forth e tire. Information on tire
characteristics %
The data shown in the image is example
data.
This information desc ribes the type of tire cord
and the number of la yers in side wall1 and
under tire tread 2. Ti
re size designation, load-bearing capacity,
speed rating and load index &
WARNING Risk of inju rythro ugh exceed‐
ing the specified tire load rating or the
permissible speed rating
Exceeding the specified tire load rating or
th e permissible speed rating may lead totire
dama geand tothe tires bur sting. #
Therefore, only use tire types and sizes
appr ovedfo ryo ur vehicle model. #
Obser vethe tire load rating and speed
ra ting requ ired foryo ur vehicle. 1
Preceding letter
2 Nominal tire width in millime ters
3 Aspect ratio in %
4 Tire code
5 Rim diame ter
6 Load-bearing index
7 Speed rating
8 Load ind ex
% The data shown in the image is example
data.
In fo rm ation about reading tire data can be
obtained from any qualified specialist workshop. Wheels and tires
391

th
ese are ins talled on theve hicle, but does not
include passengers or luggage.
Maximum tire load: the maximum tire load is
th e maximum permissible weight in kilog rams or
lbs for which a tire is appr oved.
Maximum permissible tire pressure: maxi‐
mum permissible tire pressure for one tire.
Maximum load on one tire: maximum load on
one tire. This is calculated bydividing the maxi‐
mum axle load of one axle bytwo.
PSI (pounds per square in ch):standard unit of
measurement for tire pressu re.
Aspect ratio: ratio between tire height and tire
width in pe rcent.
Ti re pressure: pressure inside the tire applying
an outward forc eto eve rysquare inch of the tire.
The tire pressure is specified in pounds per
square inch (psi), in kilopascals (kPa) or in bar.
The tire pressure should only be cor rected when
th e tires are cold.
Cold tire pressure: the tires are cold when the
ve hicle has been par kedfo r at least 3 hours without direct sunlight on
the tires or theve hicle
has been driven for less than 1 mile (1.6 km).
Ti re contact sur face: the part of the tire that
comes into con tact wi th thero ad.
Ti re bead: the purpose of the tire bead is to
ensure that the tire sits securely on the wheel
ri m. There are se veral wire cores in the tire bead
to preve ntthe tire from changing length on the
wheel rim.
Side wall:the part of the tire between the tread
and the tire bead.
We ight of optional equipment: the combined
we ight of the optional equipment weighing more
th an there placed standard parts and more than
5 lbs (2.3 kg).This optional equipment, such as
high-per form ance brakes, le vel control sy stem, a
ro of luggage rack or high-per form ance bat teries,
is not included in the curb weight and thewe ight
of the accessories.
TIN (Tire Identification Number): a unique
identification number which can be used by a
tire manufactu rerto identify tires, forex ample,
in a product recall, and thus identify the pur‐
ch asers. The TIN is made up of the manufactur‐ er's identity code, tire size, tire type code and
th e manufacturing date.
Load-bearing index: the load-bearing index is a
code that con tains the maximum load-bearing
capacity of a tire.
Tr action: traction is the grip resulting from fric‐
tion between the tires and thero ad sur face.
We ar indicator: narrow bars (tread wear bars)
th at are distributed overth e tire conta ct surface.
If th e tire tread is le vel with the bars, thewe ar
limit of 1/ 16in (1.6 mm) has been reached.
Distribution of vehicle occupants: distribution
of vehicle occupants over designated seat posi‐
tions in a vehicle.
Maximum permissible pa yload weight: nomi‐
nal load and luggage load plus 150 lb (68 kg)
multiplied bythe number of seats in theve hicle. Wheels and tires
395

Changing a wheel
Note
s on selecting, installing and replacing
tires Mercedes
-AMG vehicles: observeth e no tes in
th e Supplement. Otherwise, you may not recog‐
nize dangers.
Yo u can ask for information rega rding permit ted
wheel/tire combinations at an authorized
Mercedes-Benz Center. &
WARNING Risk of accident due toincor‐
re ct dimensions of wheels and tires
If wheels and tires of the wrong size are
ins talled, the wheel brakes or wheel suspen‐
sion components may be damaged. #
Alw aysre place wheels and tires with
th ose that fulfill the specifications of
th e original part.
When replacing wheels, make sure tofit the
cor rect:
R Designation R
Model
When replacing tires, make sure toins tallthe
cor rect:
R Designation
R Manufactu rer
R Model &
WARNING Risk of inju rythro ugh exceed‐
ing the specified tire load rating or the
permissible speed rating
Exceeding the specified tire load rating or
th e permissible speed rating may lead totire
dama geand tothe tires bur sting. #
Therefore, only use tire types and sizes
appr ovedfo ryo ur vehicle model. #
Obser vethe tire load rating and speed
ra ting requ ired foryo ur vehicle. *
NO
TEVehicle and tire damage thro ugh
tire types and sizes that ha venot been
appr oved Fo
r saf etyre asons, on lyuse tires, wheels
and accessories which ha vebeen specially
appr ovedby Mercedes-Benz foryo ur vehicle.
These tires are specially adap tedto the con‐
trol sy stems, such as ABS, ESP ®
and
4MATIC, and mar ked as follo ws:
R MO = Mercedes-Benz Original
R MOE = Mercedes-Benz Original Extended
(run-flat tire only for cer tain wheels)
R MO1 = Mercedes-Benz Original (only cer‐
tain AMG tires)
Cer tain characteristics, such as handling,
ve hicle noise emissions, fuel consum ption,
et c. may otherwise be adversely af fected.
Fu rthermore, other tire sizes could result in
th e tires rubbing against the body and axle
components when loaded. This could result
in damage tothe tire or theve hicle. 396
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

The
wear pat tern s on the front and rear wheels
dif fer:
R Front wheels wear more on the shoulder of
th e tire
R Rear wheels wear more in the center of the
tire
On vehicles that ha vethe same size front and
re ar wheels, rotat eth e wheels according tothe
inter vals in the tire manufacturer's warranty
book in your vehicle documents. If this is not
av ailable, rotate the tires every
3,000 to6,000 mile s (5,000to10,000 km),
depending on thewe ar. Ensure that the direction
of rotation is maintained.
It is impe rative toobser vethe instructions and
saf ety no tes on "Changing a wheel" when doing
so Preparing theve hicle for a wheel
ch ange( →page 400). Note
s onstoring wheels When
storing wheels, obser vethefo llowing
no tes:
R Afterre moving wheels, store them in a cool,
dry and preferably dark place.
R Protect the tires from conta ct withoil, grease
or fuel. Overview of
the tire-chan getool kit Apart from some countr
y-specific variants, vehi‐
cles are not equipped with a tire-change tool kit.
Fo r more information on which tire-changetools
are requ ired and appr ovedfo r per form ing a
wheel change on your vehicle, consult a qualified
specialist workshop.
Re quired tire-change tools may include, for
ex ample:
R Jack
R Chock
R Lug wrench
R Alignment bolt The tire-change
tool kit is located under the
trunk floor. 1
Ratchet
2 Alignment bolt
3 Jack ing support
4 Jack
5 Lug wrench
6 Folding chock Wheels and tires
399

Closing using
the SmartK ey................... 75
Con venience closing feature ................ .75
Con venience opening ............................ 74
Opening .................................................72
Opening (all) .......................................... 72
Opening with the SmartK ey................... 74
Problem .................................................75
Size designation (tires) ........................... 391
SmartK ey................................................... 58
Ac oustic locking verification signal ....... 59
Battery .................................................. 60
Energy consu mption .............................. 59
Fe atures ................................................ 58
Ke yring attachment .............................. 60
Mechanical key ...................................... 60
Overview .............................................. .58
Pa nic alarm ........................................... 59
Problem ................................................. 61
Un locking setting .................................. 59
Sma rtKe y functions
Deactivating .......................................... 59
Smartphone see Android Auto
see Apple CarPlay™ see Mercedes-Benz Link
see
Telephone
Snow chains ............................................. 377
Soc ket (12 V) ............................................ 106
Fr ont center console ........................... 106
Re ar passenger compartment ............ .107
Tr unk .................................................. .107
Soft top
Care .................................................... 350
Closing (soft- top switch) ........................ 77
Closing using the SmartK ey................... 75
Opening (soft-top switch) ......................77
Opening with the SmartK ey................... 74
Problem .................................................82
Re locking .............................................. .78
Soft-top switch .......................................... 77
Software update ...................................... 255
Impor tant sy stem updates .................. 256
Information .......................................... 255
Pe rforming .......................................... 255
Sound PRE-SAFE ®
Sound ................................. 46
Wheels and tires ..................................3 76Sound
see Burmes ter®
sur round sound sy stem
see Sound settings
Sound settings ........................................3 33
Ad justing the balance/fader ............... 333
Ad justing treble, mid-range and bass
settings ............................................... 333
Au tomatic volume adjustment ............ .333
Calls up the sound menu ..................... 333
Information .......................................... 333
Special seat belt retractor ........................ 52
Speciali stwo rkshop ..................................24
Speech dialog sy stem
see Voice Cont rol Sy stem
Speed index (tires) ..................................3 91
Speedome ter
Digital ................................................. .216
Spotlight function Switching on/off ................................. 202
St andby mode
Ac tivating/deactivating ...................... .155
Fu nction .............................................. 154
St anding lights ......................................... 111 Index
505

Changing
folders ................................ .296
Composing .......................................... 295
Configu ring the displa yedte xt mes‐
sa ge s ................................................... 295
Deleting ............................................... 296
Drafts .................................................. 296
No tes .................................................. 295
Options ................................................ 296
Outbox ................................................ 296
Re ad-aloud function ............................ 295
Re ading .............................................. .295
Re plying .............................................. 296
Sending ...............................................2 95
Vo ice commands (Voice Cont rol Sys‐
te m) ..................................................... 233
Through-loading feature in there ar
passenger comp artment........................ 103
Time Manual time setting ............................. 247
Setting summer time ........................... 247
Setting the time and date automati‐
cally ..................................................... 247
Setting the time zone ........................... 247
Setting the time/date form at .............. 247
TIN (Tire Identi fication Number) ............389 Ti
re and Loading Information placard ... 384
Ti re ch aracteristics ................................. 391
Ti re inflation compressor
see TIREFIT kit
Ti re information table .............................384
Ti re labeling ............................................ .388
Cha racteristics .................................... 391
DO T,Tire Identification Number (TIN)
............................................................ .389
Load index .......................................... .391
Load-bearing capacity ......................... 391
Maximum tire load .............................. 390
Maximum tire pressure ....................... 390
Overview ............................................. 388
Speed rating ........................................ 391
Te mp erature grade .............................. 388
Ti re Quality Grading ............................. 388
Ti re size designation ............................3 91
Tr action grade .................................... .388
Tr ead wear grade ................................ .388
Ti re load (maximum) .............................. .390
Ti re pressure ................................... 379, 380
Che cking (manually) ............................ 380 Checking (tire pressure monitoring
sy
stem) ............................................... 382
Maximum ............................................ 390
No tes ................................................... 377
Re starting the tire pressure monitor‐
ing sy stem ...........................................3 83
Ti re pressure monitoring sy stem
(function) ............................................. 381
Ti re pressure table .............................. 379
TIREFIT kit ...........................................3 58
Ti re pressure moni tor
Re starting ............................................ 383
Te ch nical da ta..................................... 383
Tire pressure monitoring sy stem
Checking the tire pressure .................. 382
Fu nction .............................................. 381
Tire pressure table .................................. 379
Ti re Quality Grading ................................ 388
Ti re tread .................................................. 376
Ti re -change tool kit
Overview ............................................ .399
TIREFIT kit ................................................ 358
St orage location ..................................3 58508
Index

Using ................................................... 358
Ti res
Changing hub caps .............................. 400
Characteristics .................................... 391
Checking .............................................. 376
Checking the tire pressure (man‐
ually) ................................................... 380
Checking the tire pressure (tire pres‐
sure monitoring sy stem) ......................3 82
Definitions .......................................... .393
DO T,Tire Identification Number (TIN)
............................................................ .389
Flat tire ................................................ 356
Ins talling .............................................. 403
Load index .......................................... .391
Load-bearing capacity ......................... 391
Maximum tire load .............................. 390
Maximum tire pressure ....................... 390
MOExtended tires ................................ 357
Noise ...................................................3 76
No tes on ins talling .............................. 396
Overview of tire labeling ...................... 388
Re moving ............................................ 403
Re placing .................................... 396, 400 Re
starting the tire pressure monitor‐
ing sy stem ...........................................3 83
Ro tating ............................................... 398
Selection ............................................ .396
Snow chains ........................................ 377
Speed rating ........................................ 391
St oring ................................................ 399
Te mp erature grade .............................. 388
Ti re and Loading In form ation placard
............................................................ .384
Ti re pressure (no tes) ........................... 377
Ti re pressure monitoring sy stem
(function) ............................................. 381
Ti re pressure table .............................. 379
Ti re Quality Grading ............................. 388
Ti re size designation ............................3 91
TIREFIT kit ...........................................3 58
Tr action grade .................................... .388
Tr ead wear grade ................................ .388
Un usual handling characteristics ........ .376
To ol
see Vehicle tool kit
To tal di stance .......................................... .216
Displ aying ............................................ 216To
uch Control .......................................... 238
On-board computer .............................. 211
Operating ............................................ 238
Setting the sensitivity .......................... 238
To uchpad .................................................. 239
Ac tivating/deactivating ha ptic oper‐
ation feedback .....................................2 40
Operating ............................................ 239
Re ading the handwriting recognition
aloud ................................................... 24 0
Selecting a station and track .............. .240
Setting the sensitivity .......................... 24 0
Switching on/off ................................. 239
To w- bar sy stem ...................................... .208
To w- starting ............................................. 372
To wing away ............................................ 368
To wing eye
Ins talling .............................................. 372
St orage location ..................................3 72
To wing me thods ...................................... 367
Tr ack
Selecting (audio mode) ........................ 316
Tr action grade ......................................... 388 Index
509