2018 MERCEDES-BENZ SL CLASS tire size

Maximum load on at ire (defini-
tion) ............................................... 279
Maximum loaded vehicle weight
(definition) .................................... .2 79
Maximum permissible tire pres-
sure (definition) ............................ .2 79
Maximum tire loa d. ........................ 277
Maximum tire loa d( definition) ....... 279
MOExtended tires .......................... 262
Optional equipment weight (defi-
nition) ............................................ 280
Overview ........................................ 260
PSI (pounds per square inch) (def-
inition) .......................................... .2 79
Replacing ....................................... 280
Service life ..................................... 261
Sidewall (definition) ....................... 279
Speed rating (definition) ................ 279
Storing .......................................... .2 81
Structure and characteristics
(definition) ..................................... 278
Summer tires ................................. 262
Temperature .................................. 274
TIN (Tire Identification Number)
(definition) ..................................... 280
Tire bea d( definition) ..................... .2 79
Tire pressure (definition) ................ 279
Tire pressure s( recommended ). ..... 278
Tire size (data) ............................... 284
Tire size designation, load-bearing
capacity, spee dr ating .................... 275
Tire tread ....................................... 261
Tire tread (definition) ..................... 279
Total loa dl imit (definition) ............. 280
Traction ......................................... 274
Traction (definition) ....................... 280
Trea dw ea r. .................................... 274
Uniform Tire Quality Grading
Standard s. ..................................... 273
Uniform Tire Quality Grading
Standard s( de finition) .................... 278
Wea ri ndicator (definition) ............. 280
Wheel and tire combination ........... 284
Wheel rim (definiti on) .................... 278
se e
Fla tt ire
Tow-starting
Emergency engine starting ............ 258
Important safety notes .................. 256 Towin ga way
Important safety guideline s. .......... 256
Installing the towing ey e. ............... 256
Removing the towing ey e. .............. 257
Transporting the vehicl e. ............... 258
With both axles on the ground ....... 257
With the rea ra xl er aised ................ 257
Traffi cr eports
see also Digital Operator's Man-
ua l. ................................................. 211
Transmission
Selector lever ................................ 122
see Automati ct ransmission
Transmissio np osition display ......... 122
Transporting the vehicle .................. 258
Trip computer (on-board com-
puter) .................................................. 166
Trip odometer
Calling up ....................................... 166
Resetting (on-board computer) ...... 167
Trunk
Emergency release .......................... 73
Important safety notes .................... 72
Locking separatel y. .......................... 73
Opening/closing (manuall yf rom
outside) ............................................ 73
Overview .......................................... 72
Trunk lid
Displa ym essage ............................ 200
Opening dimensions ...................... 295
Trunk partition
Displa ym essage ............................ 200
Genera ln otes .................................. 79
Opening/closing .............................. 80
Turn signals
Displa ym essage ............................ 189
Switching on/of f. ............................. 96
Two-wa yr adio
Frequencie s. .................................. 288
Installation ..................................... 288
Transmission outpu t( maximum) .... 288
Type identificatio np late
see Vehicl ei de ntification plate
U
Unlocking
Emergency unlocking ....................... 72 Index 19

Removin gaw hee l. ......................... 283
Storing ........................................... 281
Tightening torque ........................... 284
Wheel size/tire size ....................... 284
Win ds cr een
Inserting and removing .................... 80
Preparing for installation .................. 80
see AIRGUIDE
Windows
see Sid ew in dows
Windshield
Defrosting ...................................... 110
Windshiel dw asher fluid
see Windshield washe rs ys tem
Windshiel dw asher system
Adding washe rf luid ....................... 236
Important safety notes .................. 294
Windshiel dw ip ers
Displa ym essage ............................ 201
Problem (malfunction) ................... 103
Replacing the wipe rb lade s. ........... 101
Switching on/of f. .......................... 101
Winter driving
Important safety notes .................. 262
Slippery roa ds ur faces ................... 138
Snow chains .................................. 262
Winter operation
Overview ........................................ 262
Winter tires
M+S tire s. ...................................... 262
Wipe rb la des
Cleaning ......................................... 241
Important safety notes .................. 101
Replacing ....................................... 101
Workshop
see Qualifie ds pecialist workshop
Z
ZONE function
Switching on/of f. .......................... 110 Index 21

MOExtended tires (tires with run-flat
properties)
General notes With MOExtended tires (tires with run flat char-
acteristics), you can continue to drive you rv ehi-
cle even if there is at otal loss of pressure in one
or more tires. The affected tire must not show
any clearly visible damage.
You can recognize aM OExtended tire by the
MOExtended marking which appears on the
sidewal loft he tire. You wil lf ind this marking
next to the tire size designation, the load-bear-
ing capacity and the spee di ndex ( Y
pag e2 75).
MOExtended tires may only be use dinc onjunc-
tion with an active tire pressure loss warning
system or with an active tire pressure monitor.
If ap ressure los sw arnin gm essag ea ppears
in the multifunction display: R
observe the instructions in the display mes-
sage s( Y
pag e1 96)R
check the tire for damage R
if driving on, observe the following notes
The driving distance possible in run-fla tm ode is
approximately 50 mile s( 80 km) when the vehi-
cle is partiall yl aden and approximately 19 miles
(30 km) when the vehicl eisf ull yl aden.
In addition to the vehicl el oad, the driving dis-
tance possible depends upon: R
vehicl es peedR
road condition R
outside temperature
The driving distance possible in run-fla tm ode
may be reduced by extreme driving conditions
or maneuvers, or it can be increased through a
moderate style of driving.
The driving distance possible in run-fla tm ode is
counted from the moment the tire pressure loss
warning appears in the multifunction display.
You must not exceed am aximu md esign speed
of 50 mph (80 km/h).
When replacing one or all tires, please observe
the following specifications for you rv ehicle's
tires: R
size R
type and R
the "MOExtended "m ark
If at ire has gone flat and cannot be replaced
with aM OExtended tire, as tandard tire may be
use dasat emporary mea su re. Make sure that you use the prope rs ize and type (summer or
winter tire).
Vehicles equipped with MOExtended tires are
not equipped with aT IREFIT kit at the factory. It
is therefore recommende dt hat you additionally
equip you rv ehicl ew ith aT IREFIT kit if you mount
tires that do not feature run-fla tc haracteristics,
e.g. winter tires. AT IREFIT kit can be obtained
from aq ualified specialist workshop, for exam-
ple.
Important safety notes
G WARNING
When driving in emergency mode, the driving
characteristics deteriorate, e.g. when corner-
ing, accelerating quickly and when braking.
There is ar isk of an accident.
Do not exceed the stated maximu ms peed.
Avoid abrupt steering and driving maneuvers,
and driving over obstacles (curbs, potholes,
off-road). This applie sinp articula rtoal aden
vehicle.
Stop driving in emergency mode if: R
you hea rb anging noises. R
the vehicl es tarts to shake. R
you see smoke and smell rubber. R
ESP ®
is intervening constantly. R
there are tears in the sidewalls of the tire.
After driving in emergency mode, have the
whee lr ims checked at aq ualified specialist
worksho pw ith regard to their further use .T he
defective tire must be replaced in every case.
TIREFIT kit
Important safety notes TIREFIT is at ire sealant.
You can use TIREFIT to seal puncture sofupt o
0.16 in (4 mm) ,p articularly those in the tire
tread. You can use TIREFIT at outside tempera-
tures dow nt o

Tire and Loadin gI nfor matio np lacard
C
Recommended tire pressures
The Tire and Loading Informatio np la card is on
the B-pillar on the driver's side ( Y
page 271).
The Tire and Loading Informatio np la card con-
tains the recommende dt ire pressures for cold
tires. The recommende dt ire pressures ar ev alid
for the maximum permissibl el oa da nd up to the
maximum permissibl ev ehicl es peed.
Tire pressure table The tire pressure table is on the insid eoft he fuel
fille rf lap. It shows the tire pressure for al lt ires
permitted at the factory for thi sv ehicle; see
illustratio n( ex ample).
The tire pressure table contains the recommen-
de dp ressures for col dt ire sf or various operat-
ing conditions, i.e .d if ferin gl oa da nd spee dc on-
ditions.
If at ire size precedes at ire pressure, the fol-
lowing tire pressure informatio ni so nl yv alid for
tha tt ire size; see illustratio n( ex ample). The load conditions "partiall yl aden "a nd "fully
laden" ar ed ef ine dint he table for different num-
bers of occupants and amounts of luggage .T he
actual numbe rofs eats ma yd if fer.
Some tire pressure table ss ho wo nl yt he rim
diameters instea doft he full tire size, e.g. R18 .
Ri md iame te risp ar toft he tire size and can be
found on the tire sidewall ( Y
page 275).
If the tire pressures have been set to the lower
values for lighte rl oads and/or lowe rr oad
speeds ,t he pressures shoul dber eset to the
highe rv alues : R
if yo uw an ttod rive with an increased load
and/or R
if yo uw an ttod rive at highe rr oa ds peeds
The tire pressures for increased load sa nd/or
highe rr oa ds peeds, shown in the tire pressure
table ,m ay have an egative effect on driving
comfort.
If the tire pressure is not set correctly, thi sc an
lead to an excessive build-u pofh ea ta nd as ud -
de nl os sofp ressure.
For mor ei nformation, contact aq uali fied spe-
cialist workshop.264
Tire pressure
Wheel sa nd tires

Example: current tire pressure display
For informatio nont he message display, refer to
the "Checking the tire pressure electronically"
sectio n( Y
page 269).
Important safety notes
G WARNING
Each tire ,i ncluding the spar e( if provided),
shoul dbec hecked at leas to nce am onth
when col da nd inflate dtot he pressure rec-
ommended by the vehicl em an ufacturer on
the Tire and Loading Informatio np la card on
the driver's door B-pillar or the tire pressure
labe lont he insid eoft he fuel fille rf lap. If your
vehicl eh as tire sofad if ferent size tha nt he
size indicated on the Tire and Loading Infor-
matio np la card or the tire pressure label, you
shoul dd et ermine the prope rt ire pressure for
thos et ires.
As an adde ds af ety feature, your vehicl eh as
been equipped with at ire pressure monitoring
system (TPMS )t ha ti llum inate sal ow tire pres-
sure telltale when one or mor eofy ou rt ires
ar es ig nificantl yu nderinflated .A ccordingly,
when the lo wt ire pressure telltale illuminates,
yo us houl ds top and check your tire sass oon
as possible, and inflate the mtot he proper
pressure. Driving on as ig nificantl yu nderin-
flated tire causes the tire to overheat and can
lead to tire failure. Underinflatio na ls o
reduce sf ue le fficiency and tire trea dl if e, and
ma ya ff ect the vehicle's handling and stop-
ping ability.
Please note tha tt he TPMS is not as ubst itute
for prope rt
ire ma intenance ,a nd it is the driv-
er' sr esponsibility to maintain correct tire
pressure, eve nifu nderinflatio nh as not
reache dt he level to trigge ri llum ination of the
TPMS lo wt ire pressure telltale. Your vehicl eh as also been equipped with a
TPMS malfunctio ni ndicator to indicate if the
system is not operating properly .T he TPMS
malfunctio ni ndicator is combine dw it ht he
lo wt ire pressure telltale .W he nt he system
detects am al function, the warning lamp will
flash for approximately am inute and then
remai nc ontinuously illuminated. This
sequence will be repeated every time the vehi-
cle is started as long as the malfunction
exists.
When the malfunctio ni ndicator is illuminated,
the system ma yn ot be able to detect or signal
lo wt ire pressure as intended. TPMS malfunc-
tions ma yo ccu rf or av ar iety of reasons,
including the installatio nofi ncompatible
replacement or alternate tire sorw heel so n
the vehicl et ha tp revent the TPMS fro mf un c-
tioning properly .A lway sc heck the TPMS mal-
functio nt elltale after replacing one or more
tire sorw heel sony ou rv ehicl etoe nsur et hat
the replacement or alternate tire sa nd wheels
allo wt he TPMS to continue to functio np rop-
erly.
It is the driver's responsibility to set the tire
pressure to tha tr ecommende df or col dt ires
which is suitabl ef or the operating situation
( Y
page 263) .N ote tha tt he correct tire pressure
for the curre nt operating situatio nm u s tf irst be
taught-i ntot he tire pressure monitor. If as ub -
stantia ll os sofp ressure occurs, the warning
threshold for the warning message is aligned to
the taught-i nr eference values. Restart the tire
pressure monitor after adjusting the pressure of
the col dt ire s( Y
page 270). The current pres-
sures ar es av ed as new reference values. As a
result, aw ar ning message will appear if the tire
pressure drops significantly.
The tire pressure monitor does not warn yo uo f
an incorrectly set tire pressure. Observe the
note sont he recommende dt ire pressure
( Y
page 263).
The tire pressure monitor is not able to warn you
of as udde nl os sofp ressure, e.g .ift he tire is
penetrated by af oreign object. In the event of a
sudden loss of pressure, bring the vehicl etoa
halt by braking carefully. Avoi da brup ts teering
movements.268
Tire pressure
Wheel sa nd tires

Maximum permissible gross vehicle
weight rating X
Specification for maximu mg ross vehicle
weight C is listed in the Tire and Loading
Informatio np lacard: "The combined weight of
occupants and cargo should never exceed
XXX kilograms or XXX lbs."
The gross weight of all vehicl eo ccupants, load
and luggage must not exceed the specified
value.
i The specifications show nont he Tire and
Loading Informatio np lacard in the illustration
are examples. The maximu mp ermissible
gross vehicl ew eight rating is vehicle-specific
and may diffe rf rom that in the illustration.
You can find the vali dm aximu mp ermissible
gross vehicl ew eight rating for you rv ehicl eo n
the Tire and Loading Informatio np lacard.
Number of seats
Maximu mn umber of seats C indicates the
maximu mn umber of occupants allowe dt o
travel in the vehicle. This information can be
found on the Tire and Loading Informatio np lac-
ard. i The specifications show nont he Tire and
Loading Informatio np lacard in the illustration
are examples. The number of seats is vehicle-
specific and can diffe rf rom the details shown.
The number of seats in you rv ehicl ec an be
found on the Tire and Loading Information
placard.
Determinin gt he correct load limit
Step-by-ste pi nstructionsThe following steps have been developed as
required of all manufacturers under Title 49,
Cod eofU .S. Federa lR egulations, Part 575 pur-
suant to the "National Traffi ca nd Motor Vehicle
Safety Act of 1966". X
Step 1: Locate the statement "The combined
weight of occupants and cargo should never
exceed XXX kg or XXX lbs." on you rv ehicle’s
Tire and Loading Informatio np lacard.X
Step 2: Determine the combined weight of
the drive ra nd passengers that wil lber iding in
you rv ehicle. X
Step 3: Subtract the combined weight of the
drive ra nd passengers from XXX kilograms or
XXX lbs. X
Step 4: The resulting figure equals the avail-
abl ea mount of cargo and luggage loa dc apa-
city. For example, if the "XXX "a mount equals
1400 lbs and there wil lbef ive 150-lb pas-
sengers in you rv ehicle, the amount of avail-
abl ec argo and luggage loa dc apacity is
650 lbs (1400 -7 50 (5 x1 50) = 6 50 lbs).X
Step 5: Determine the combined weight of
luggage and cargo being loaded on the vehi-
cle. That weight may not safel ye xceed the
available cargo and luggage loa dc apacity cal-
culated in step 4.
Example :s teps 1to3The following table show se xamples on how to
calculate total and cargo loa dc apacities with
varying seating configurations and number and
size of occupants. The following examples use a
loa dl imi tof1 500 lbs (680 kg). This is for illus-
tration purposes only. Make sure you are
using the actua ll oa dl imi tf or you rv ehicl es tated
on you rv ehicle's Tire and Loading Information
placard ( Y
pag e2 71).272
Loading the vehicle
Wheels and tires

An electronic speed limite rp revents your vehi-
cle from exceeding as peed of 130 mph
(21 0k m/h).
The speed rating of tire sm ounted at the factory
ma ybeh ig he rt ha nt he maximu ms peed tha tt he
electronic speed limite rp er mits.
Make sure tha ty ou rt ire sh av et he required
speed rating ,e .g .w he nb uyin gn ew tires. The
required speed rating for your vehicl ec an be
found in the "tires "s ectio n( Y
page 284).
Further informatio na bout reading tire data can
be obtained from any qualified specialist work-
shop.
Load index
In additio ntot he load-bearing index, load
index C ma ya ls obei mprinte dont he sidewall
of the tire .Y ou will find thi sa fte rt he letter that
identifie st he speed rating ( Y
page 275).R
If no specification is given: no text (a sint he
exampl ea bo ve), represents as tandard load
(SL) tire R
XL or Extra Load: represents ar einforced tireR
Light Load: represents al ig ht load tireR
C, D, E: represents al oa dr an ge tha td epen ds
on the maximu ml oa dt ha tt he tire can carry at
ac ertain pressure
i Tire data is vehicle-specific and ma yd ev iate
from the data in the example. Maximum load rating
Maximu mt ire load C is the maximu mp er mis-
sibl ew eigh tf or which the tire is approved.
Do not overload the tire sbye xceeding the
specified load limit. The maximu mp er missible
load can be found on the vehicle's Tire and
Loading Informatio np la card on the B-pillar on
the driver's side ( Y
page 271).
i The actual values for tire sa re vehicle-spe-
cifi ca nd ma yd ev iate from the values in the
illustration.
DOT, Tire Identificatio nN umbe r( TIN)US tire regulations stipulate tha te very tire man-
ufacturer or retreader must imprint aT IN in or on
the sidewall of each tire produced.
The TIN is au niqu ei de ntificatio nn umber. The
TIN enables the tire manufacturer sorr etreaders
to inform purchaser sofr ecall sa nd othe rs af ety-
relevant matters .Itm ak es it possibl ef or the
purchaser to easily identify the affecte dt ires.
The TIN is made up of manufacturer identifica-
tio nc ode D ,t ire size

requirements of the U.S. Department of Trans-
portation.
Manufacturer identificatio nc ode: manufac-
turer identification code D provides details on
the tire manufacturer. New tires have ac ode
with two symbols. Retreaded tires have ac ode
with four symbols.
For further informatio na bout retreaded tires,
see ( Y
pag e2 84).
Tire size: identifier