winter tires MERCEDES-BENZ SLC-Class 2017 R172 Owner's Manual

Engine ............................................ 190
Generalnote s................................ 178
Hiding (on-boar dcomputer) ........... 178
KEYLESS-GO. ................................. 202
Lights ............................................. 189
Safety systems .............................. 179
SmartKey ....................................... 201
Tires ............................................... 196
Vehicl e........................................... 198
Distance Pilo tDISTRONIC
Activating ....................................... 142
Calling up aspeed ......................... 143
Cruise control lever ....................... 142
Displa yMessage ............................ 194
Displays in the instrument cluster .. 145
Driving tip s.................................... 146
Function/note s............................. 140
Important safety notes .................. 141
Setting the specified minimum
distance ......................................... 145
Stopping ........................................ 144
Storing aspeed .............................. 143
Switching off .................................. 146
Warning lamp ................................. 209
Distance recorder
see Odometer
see Tri podometer
Distance warnin g(wa rning lamp) .... 209
Distance warnin gfunction
Function/note s................................ 56
Doors
Automati cloc king (on-board com-
puter) ............................................. 173
Automati cloc king (switch) ............... 69
Central locking/unlocking
(SmartKey )....................................... 63
Control panel ................................... 36
Displa ymessage ............................ 200
Emergency locking ........................... 70
Emergency unlocking ....................... 70
Important safety notes .................... 68
Opening (fro minside )...................... 69
Overview .......................................... 68
Drinking and driving ......................... 134
Drive program
Automati ctransmissio n................. 125
Displa y........................................... 122
SETUP (on-board computer) .......... 175 Driver's door
see Doors
Drivin gabroad
Mercedes-Benz Service ................. 236
Drivin gonfloodedroads .................. 138
Drivin gsafety system
Active Brake Assist .......................... 56
Drivin gsafety systems
ABS (Anti-lock Braking System) ....... 55
ADAPTIV EBRAK E............................. 61
Adaptive Brake Assist ...................... 57
BAS (Brake Assi st Sy
stem) .............. 55
Distance warning function ............... 56
EBD (electroni cbrake force distri-
bution) ............................................. 61
ESP
®(Electronic Stability Pro-
gram) ............................................... 58
Important safety information ........... 54
Overview .......................................... 54
Drivin gsystem
AMG sports suspensio n(SLC 43
AMG). ............................................ 149
Drivin gsystems
Adaptive Damping System ............. 149
ATTENTIO NASSIST ........................ 158
Blind Spot Assist ............................ 159
Cruis econtrol ................................ 138
Displa ymessage ............................ 192
DISTRONIC PLU S........................... 140
Driving Assistance packag e........... 159
HOLD function ............................... 148
Lane Keeping Assist ...................... 160
Parking Guidance ........................... 152
PARKTRONIC ................................. 149
Rear vie wcamera .......................... 154
Drivin gtips
Automati ctransmission ................. 124
Brakes ........................................... 136
Break-in perio d.............................. 114
Distance Pilo tDISTRONIC ............. 146
Downhil lgradient ........................... 136
Drinking and driving ....................... 134
Driving in winter ............................. 138
Driving on floode droads ................ 138
Driving on we troads ...................... 138
Exhaus tcheck ............................... 134
Fue l................................................ 134
Genera l.......................................... 133
Index7

Important safety notes .................. 288
Windshield wipers
Displaym essage............................ 201
Problem (malfunction) ................... 101
Replacing the wipe rblade s.............. 99
Switching on/of f.............................. 99
Winter driving
Important safety notes .................. 257
Slippery roa dsurfaces ................... 138
Snow chains .................................. 257
Winter operation
Overview ........................................ 257
Winter tires
M+S tire s....................................... 257
Wipe rblades
Cleaning ......................................... 239
Important safety notes .................... 99
Replacing ......................................... 99
Workshop
see Qualifie dspecialist workshop
Z
ZONE function
Switching on/of f........................... 109
20Index

good time, and for staying in lane. Always adapt
your driving style to suit the prevailing road and
weather conditions and maintainasafe distance
from the vehicle in front.D rive carefully.
The driving safety systems described only work
as effectively as possible when there is ade-
quate contact between the tires and the road
surface. Pay particular attention to the informa-
tion regarding tires, recommended minimum
tire tread depths etc. in the "Wheels and tires"
section (
Ypage 255).
In wintry driving conditions, always use winter
tires (M+S tires) and if necessary, snow chains.
Only in this way will the driving safety systems
described in this section work as effectively as
possible.
ABS (Anti-lock Braking System)
General information
ABS regulates brake pressure in such away that
the wheels do not lock when you brake. This
allows you to continue steering the vehicle when
braking.
The ! ABS warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out when the engine is running.
ABS works from aspeed of about 5mph
(8 km/h), regardless of road-surface conditions.
ABS works on slippery surfaces, even when you
only brake gently.
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 54).
GWARNING
If ABS is faulty, the wheels could lock when
braking. The steerability and braking charac-
teristics may be severely impaired. Addition-
ally,f urther driving safety systems are deac-
tivated. There is an increased danger of skid-
ding and accidents.
Drive on carefully. Have ABS checked imme-
diately at aqualified specialist workshop.
When ABS is malfunctioning, other systems,
including driving safety systems, will also
become inoperative. Observe the information
on the ABS warning lamp (
Ypage 204) and dis- play messages which may be shown in the
instrument cluster (
Ypage 179).
Braking
XIf ABS intervenes:
continue to depress the
brake pedal vigorously until the braking sit-
uation is over.
XTo make afull brake application: depress
the brake pedal with full force.
If ABS intervenes when braking, you will feel a
pulsing in the brake pedal.
The pulsating brake pedal can be an indication
of hazardous road conditions, and functions as a reminder to take extr acare while driving.
BAS (Brake Assist System)
General information
BAS operates in emergencyb raking situations.
If you depress the brake pedal quickly, BAS
automatically boosts the braking force, thus
shortening the stopping distance.
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 54).
GWARNING
If BAS is malfunctioning, the braking distance
in an emergencyb raking situation is
increased. There is arisk of an accident.
In an emergencyb raking situation, depress
the brake pedal with full force. ABS prevents
the wheels from locking.
Braking
XKeep the brake pedal firmly depressed until
the emergencyb raking situation is over.
ABS prevent sthe wheels from locking.
The brakes will function as usual once you
release the brake pedal. BAS is deactivated.
Driving safety systems55
Safety
Z

Drivingonw et road s
Hydroplaning
If water has accumulated to acertai ndept hon
th er oads urface, there is adanger of hydro-
planin goccurring, eve nif:
Ryou drive at low speeds
Rthet ires hav eadequat etread dept h
Fo rthisr eason ,intheevent of heav yrain or in
condition sinwhichh ydroplaning may occur ,
you mus tdrive in th efollowin gmanner:
Rlowe ryour speed
Ravoid rut s
Ravoid sudden steerin gmovements
Rbrake carefully
Drivin gonflooded road s
!Do notdrive through floode dareas. Chec k
th ed ept hofa ny water befor edrivin gthrou gh
it .D rive slowly through standin gwater. Oth-
erwise ,water may ente rthe vehicle interio ror
th ee nginec om partment. Thi scan damage
th ee lectronic component sintheengin eor
th ea utomatic transmission. Water can also
be drawn in by th eengine's air suction nozzles
and this can cause engin edamage.
Winte rdrivin g
GWARNING
If you shift down on aslipper yroads urfac ein
an attempt to increase th eengine's braking
effect ,the drive wheels could los etheir grip.
There is an increase ddanger of skidding and
accidents .
Do no tshift down fo radditional engin ebrak-
in gonas lipperyroads urface.
GDANGER
If th eexhaus tpipe is blocke doradequat e
ventilation is no tpossible, poisonous gases
suc hasc arbon monoxide (CO) may ente rthe
vehicle. Thi sisthecase, e.g. if th evehicle
becomes trappe dinsnow. There is arisko f
fatal injury.
If you leav ethe engin eortheauxiliar yheatin g
running ,makes uret he exhaus tpipe and are a
around th evehicle are clear of snow. To
ensur eana dequat esupply of fresh air, ope na
window on th esideoft hevehicle that is no t
facin gintot he wind.
Hav eyour vehicle winter-proofed at aqualified
specialis tworkshop at th eonset of winter.
Drive particularly carefully on slipper yroads ur-
faces. Avoid sudden acceleration ,steerin gand
braking maneuvers .Donotuse cruise control.
If th evehicle threatens to skid or canno tbe
stopped when movin gatlow speed:
XShift th etransmissio ntoposition N.
The outsid etem perature indicator is no t
designed to serve as an ice-warnin gdevic eand
is therefore unsuitable fo rtha tp urpose.
Changes in th eoutsid etem perature are dis -
playe dafter ashort delay.
Indicated temperature sjusta bov ethe freezin g
poin tdon otguarantee that th eroads urfac eis
free of ice. The road may still be icy, especially in
wooded areas or on bridges. The vehicle could
skid if you fail to adapt your drivin gstyle. Always
adapt your drivin gstyle and drive at aspeed to
suit th eprevailin gweather conditions.
You should pay spe cia
l attention to road condi-
tion swhen temperature sare around freezin g
point.
Fo rm orei nformati on on drivin gwiths now
chains, see (
Ypage 257).
Fo rm orei nformat ion on drivin gwiths ummer
tires ,see (
Ypage 257).
Observ ethe note sint he"Winte roperation "sec-
tion (
Ypage 257).
Drivin gsystems
Cruis econtro l
General notes
Cruise contro lmaintain saconstan troa ds peed
fo ry ou. It brake sautomatically in order to avoid
exceedin gthe set speed. On lon gand steep
downhill gradients, especially if th evehicle is
laden, you mus tselec talowe rgear in goo dtim e.
By doin gso, you will mak euse of th ebraking
effect of th eengine. Thi srelieves th eload on th e
138Driving systems
Driving an dparking

!Make sure that:
Rthe side windows and the roof are com-
pletely closed
Rthe climate control blower is switched off
Rthe windshieldwiper switch is at position 0
The vehicle could otherwise be damaged.
You can wash the vehicle in an automatic car
wash from the very start.
If the vehicle is very dirty, pre-wash it before
cleaning it in an automatic car wash.
After using an automatic car wash, wipe off wax
from the windshielda nd the wiper blades. This
will prevent smears and reduce wiping noises
caused by residue on the windshield.
Washing by hand
In some countries, washing by hand is only
allowed at speciallye quipped washing bays.
Observe the legal requirements in each country.
XDo not use hot water and do not wash the
vehicle in direct sunlight.
XUse asoft sponge to clean.
XUse amild cleaning agent, such as acar
shampoo approved by Mercedes-Benz.
XThoroughly hose down the vehicle with agen-
tle jet of water.
XDo not point the water jet directly towards the
air inlet.
XUse plenty of water and rinse out the sponge
frequently.
XRinse the vehicle with clean water and dry
thoroughly with achamois.
XDo not let the cleaning agent dry on the paint-
work.
Carefully remove all deposits of road salt as
soon as possible when driving in winter.
Powerw ashers
GWARNING
The water jet from acircular jet nozzle (dirt
blasters) can cause invisible exterior damage
to the tires or chassis components. Compo-
nentsd amagedint his way may fail unexpect-
edly.T here is arisk of an accident.
Do not use power washers with circular jet
nozzles to clean the vehicle. Have damaged
tires or chassis componentsr eplaced imme-
diately.
!Alwaysm aintainadistance of at least
11.8 in (30 cm) between the vehicle and the
power washer nozzle. Information aboutt he
correct distance is available from the equip-
ment manufacturer.
Move the power washer nozzle around when
cleaning your vehicle.
Do not aim directly at any of the following:
RTires
RDoor gaps, roof gaps, joints, etc.
RSoft top (Designo retractable hardtop)
RElectrical components
RBattery
RConnectors
RLights
RSeals
RTrim
RVentilation slots
Damaged seals or electrical componentsc an
lead to leaks or failures.
!Do not use high-pressure cleaners if the
tank recess is open while you clean it. This
can cause damage to the seals or other com-
ponents.
Cleaning the paintwork
!Do not affix:
Rstickers
Rfilms
Rmagnetic plates or similari tems
to painted surfaces. You could otherwise
damage the paintwork.
Scratches, corrosive deposits, areas affected by
corrosion and damage caused by inadequate
care cannot always be completely repaired. In
such cases, visit aqualified specialist workshop.
XRemove dirt immediately,w here possible,
while avoiding rubbing too hard.
XSoak insect remains with insect remover and
rinse off the treated areas afterwards.
XSoak bird droppings with water and rinse off
the treated areas afterwards.
XRemove coolant, brake fluid, tree resin, oils,
fuels and greases by rubbing gently with a
Care237
Maintenance and care
Z

Where willIfind...?
Vehicle tool kit
General notes
The vehicl etool kit can be found in the trunk or
in the stowage wel lunder the trunk floor.
Apart from certain country-specifi cvariations,
the vehicles are not equipped with atire-change
tool kit. Some tools for changing awheela re
specific to the vehicle. For more information on
which tools are required to perform awheel
change on you rvehicle, consul taqualified spe-
cialist workshop.
Necessary tire-changing tools can include, for
example:
RJack
RWheelc hock
RLug wrench
RRatchet wrench
RAlignment bolt
Vehicles with aTIREFIT kit
:Tire sealant filler bottle
;Fuse allocatio nchart
=Tire inflation compressor
?Towing eye
XLift the trunk floor up.
XUse the TIREFIT kit (Ypag e243).
iExample :equipment and country-specific
variations possible.
Vehicles with acollapsible spare wheel
The collapsible spare wheel can be found in the
stowage wel lunder the trunk floor (Ypag e218).
:Folding wheel chock
;Fuse allocatio nchart
=Jack
?Sheet for faulty wheel
AAlignment bolt
BLug wrench
CTowing eye
DValve extractor
ETire inflation compressor
XRemove the collapsible spare wheel
(Ypag e280).
Flat tire
Preparing the vehicle
You rvehiclem ay be equipped with:
Rtires with run-fla tcharacteristics
(MOExtended tires) (Ypag e242)
Vehicle preparation is not necessary on vehi-
cles with MOExtended tires
Ran emergency spare wheel (Ypag e279)
Vehicles equipped with MOExtended tires are
not equipped with aTIREFIT kit at the factory.I t
is therefore recommendedt hat you additionally
equip you rvehicl ewithaTIREFIT kit if you mount
tires that do not feature run-fla tproperties, e.g.
winter tires. ATIREFIT kit may be obtained from
aq ualified specialist workshop.
Informatio nonchanging and mounting wheels
(
Ypag e274).
XStop the vehicl eonsolid, non-slippery and
leve lground, as far away as possible from
traffic.
XSwitch on the hazard warning lamps.
XSecure the vehicl eagainst rolling away
(Ypag e131).
Flat tire241
Breakdown assistance

XIf possible, bring the front wheelsinto the
straight-ahea dposition.
XSwitch off the engine.
XVehicles without KEYLESS-GO: remove the
SmartKey from the ignition lock.
XVehicles with KEYLESS-GO: open the driv-
er's door.
The on-board electronics now have status 0.
This is the same as the SmartKey having been
removed.
XVehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock
(
Ypage 115).
XMake sure that the passengers are not endan-
gered as they do so. Make sure that no one is near the danger area whileaw heel is being
changed. Anyone who is not directly assisting
in the wheel change should, for example,
stand behind the barrier.
XGet out of the vehicle.P ay attention to traffic
conditions when doing so.
XClos ethe driver's door.
MOExtended tires (tires with run-flat
properties)
General notes
With MOExtended tires (tires with run flat char-
acteristics), you can continue to drive you rvehi-
cle even if there is atotal loss of pressure in one
or more tires. The affected tire must not show
any clearl yvisible damage.
You can recognize MOExtended tires by the
MOExtended marking which appears on the
sidewall of the tire. You wil lfind this marking
next to the tire size designation, the load-bear-
ing capacity and the speed index (
Ypage 269).
MOExtended tires may only be used in conjunc-
tion with an active tire pressure loss warning
system or with an active tire pressure monitor.
If ap ressure loss warning message appears
in the multifunction display:
Robserve the instructions in the display mes-
sages (Ypage 196).
Rcheck the tire for damage.
Rif driving on, observe the following notes.
The driving distance possible in run-flat mode is
approximately 50 miles (80 km) when the vehi-
cle is partially laden and approximately 19 miles
(30 km) when the vehicle is full yladen. In addition to the vehicle load
,the driving dis-
tance possible depends upon:
Rvehicle speed
Rroad condition
Routsid etemperature
The driving distance possible in run-flat mode
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-flat mode is
counted from the moment the tire pressure loss
warning appears in the multifunction display.
You must not exceed amaximum speed of
50 mph (80 km/h).
When replacing one or all tires, please observe
the following specifications for you rvehicle's
tires:
Rsize
Rtype and
Rthe "MOExtended" mark
If at ire has gone flat and cannot be replaced
with aMOExtended tire, astandard tire may be
used as atemporary measure. Make sure that
you use the proper size and type (summe ror
winter tire).
Vehiclese quipped with MOExtended tires are
not equipped with aTIREFIT kit at the factory. It
is therefore recommended that you additionally
equi pyourvehicle with aTIREFIT kit if y
ou mount
tires that do not feature run-flat properties, e.g.
winter tires. ATIREFIT kit is available, for exam-
ple, from aqualifieds pecialist workshop.
Important safety notes
GWARNING
When driving in emergency mode, the driving
characteristics deteriorate, e.g. when corner-
ing, accelerating quickly and when braking.
There is arisk of an accident.
Do not exceed the stated maximum speed.
Avoid abrupt steering and driving maneuvers,
and driving over obstacle s(curbs, potholes,
off-road). This applies in particular to aladen
vehicle.
Stop driving in emergency mode if:
Ryou hear banging noises.
Rthe vehicle starts to shake.
242Flat tire
Breakdowna ssistance

MOExtended tires (tires with run-flat
properties)
With MOExtended tires (tires with run flat char-
acteristics), you can continue to drive you rvehi-
cle even if there is atotal loss of pressure in one
or more tires.
MOExtended tires may only be use dinconjunc-
tion with an active tire pressure loss warning
system or with an active tire pressure monitor
and on wheels specifically tested by Mercedes-
Benz.
Notes on driving with MOExtended tires with a
flat tire (
Ypag e242).
Vehicles equipped with MOExtended tires are
not equipped with aTIREFIT kit at the factory. It
is therefore recommendedt hat you additionally
equip you rvehicl ewithaTIREFIT kit if you mount
tires that do not feature run-fla tproperties, e.g.
winter tires. ATIREFIT kit can be obtained from
aq ualified specialist workshop.
Winter operation
General notes
Have you rvehicl ewinter-proofed at aqualified
specialist worksho patthe onset of winter.
Observe the notes in the "Changing awheel"
section (
Ypag e274).
Driving with summer tires
At temperatures below 45 ‡(+7 †), summer
tires lose elasticity and therefore traction and
braking power. Change the tires on you rvehicle
to M+S tires .Using summe rtires at very cold
temperatures coul dcaus ecracks to form,
thereby damaging the tires permanently.
Mercedes-Benz cannot accept responsibility for
this type of damage.
GWARNING
Damaged tires can caus etire inflation pres-
sure loss. As aresult, you coul dlose control of
you rvehicle. There is arisk of accident.
Check the tires regularl yfor signs of damage
and replace any damaged tires immediately.
M+S tires
GWARNING
M+S tires with atire tread depth of less than
ã in (4 mm) are not suitable for use in winter
and do not provide sufficient traction. There is
ar isk of an accident.
M+S tires with atread depth of less than ãin
(4 mm) must be replaced immediately.
At temperatures below 45 ‡(+7 †), use winter
tires or all-season tires. Both type softire are
identified by the M+S marking.
Only winter tires bearing the isnowflake
symbol in addition to the M+S marking provide
the best possibl egrip in wintry road conditions.
Only these tires wil lallow driving safety systems
such as ABS and ESP
®to function optimally in
winter. Theset ires have beend eveloped specif-
ically for driving in snow.
Use M+S tires of the same make and tread on all
wheels to maintain safe handling characteris-
tics.
Always observe the maximu mpermissible
speeds pecified for the M+S tires you have
mounted.
When you have mounted the M+S tires:
XCheck the tire pressures (Ypag e261).
XVehicles for Canada: restart the tire pres-
sure loss warning system (Ypag e262).
XRestart the tire pressure monitor
(Ypag e262).
Information about driving with an emergency
spare wheel (
Ypag e279).
Snowc hains
GWARNING
If snow chains are installed to the front
wheels, they may drag against the vehicle
body or chassis components. This could
cause damage to the vehicle or the tires.
There is arisk of an accident.
Wintero peration257
Wheels and tires
Z

Quality grades can be found,where applicable,
on the tire sidewall between tread shoulde rand
maximum sectio nwidth.
Example:
RTreadwear grade: 200
RTractiongrade: AA
RTemperature grade: A
All passengerc ar tires must conform to the stat-
utory safety requirements in additio ntothese
grades.
iThe actua lvalues for tires are vehicle-spe-
cific and may deviate from the values in the
illustration.
Treadwear
The treadwea rgrad eisac omparativ erating
based on the wea rrate of the tire whe ntested
unde rcontrolled conditions on aspecified U.S.
government course. For example, atire graded
150 would wea rone and one-half times as well
on the government test track as atire graded
100.
The relative performance of tires depends upon
the actua lconditions of their use ,however, and
may depart significantly from the norm duet o
variations in driving habits, service practices
and differences in road characteristics and cli-
mate.
Traction
GWARNING
The tractio ngrad eassigne dtothis tire is
based on straight-ahead braking traction
tests, and doesn ot include acceleration, cor-
nering, hydroplaning ,orpeaktractio nchar-
acteristics.
!Avoid wheelspin. Thisc an leadtodamage to
the driv etrain.
The tractio ngrades –from highest to lowest –
are AA, A, Band C. Thoseg rades represent the
tire's ability to stop on wet pavement as meas-
ure dunde rcontrolled conditions on specified
government test surfaces of asphal tand con-
crete. Atire marked Cmay have poort raction
performance.
The safe speedonaw et, snow coveredoricy
road is always lower than on dry road surfaces. You should pay speciala
ttentiontoroadc ondi-
tions whe ntemperatures are around freezing
point.
Mercedes-Benz recommends aminimum tread
depth of ãin (4 mm )onallfour winter tires.
Observe the legally required minimum tire tread
depth (
Ypag e256). Winter tires can reduce the
braking distance on snow-covered surfaces in
compariso nwiths ummer tires. The braking dis-
tance is stil lmuch furthe rthan on surfaces that
are not icy or coveredw iths now. Take appro-
priate care whe ndriving.
Temperature
GWARNING
The temperature grad efor this tire is estab-
lished for atire that is properly inflated and
not overloaded. Excessiv espeed, underinfla-
tion, or excessive loading ,eithe rseparately or
in combination, can cause excessive heat
build-up and possibl etire failure.
The temperature grades are A(the highest),B ,
and C, representing the tire's resistance to the
generation of heata nd its ability to dissipate
heatw hent ested unde rcontrolled conditions
on aspecified indoor laboratory test wheel. Sus-
taine dhight emperature can cause the material
of the tire to degenerate and reduce tire life, and
excessive temperature can lea dtosudden tire
failure. The grad eCcorresponds to aleve lof
performance which al lpassengerc ar tires must
meet unde rthe Federal Motor Vehicle Safety
Standard No. 109. Grades BandArepresent
higher levels of performance on the laboratory
test wheel than the minimum required by law.
268Al la bout wheelsa nd tires
Wheels and tires

description, dependingonthe manufacturer
(e.g. 245/40 ZR 18).
Rim diameter: rim diameter?is the diameter
of the bead seat, not the diameter of the rim
flange. The rim diameter is specified in
inches (in).
Load-bearing index: load-bearing indexAis a
numerical code that specifies the maximum
load-bearing capacityofat ire.
Do not overload the tires by exceeding the
specified load limit. The maximum permissible
load can be found on the vehicle's Tire and
Loading Information placard on the B-pillar on
the driver'ss ide (
Ypage 265).
Example:
Load-bearin gindex 91 indicates amaximum
load of 1,356lb( 615 kg) that the tires can bear.
For further information on the maximum tire
load in kilograms and lbs, see (
Ypage 271).
For further information on the load bearing
index ,see "Load index "(
Ypage 271).
Speed rating: speed ratingBspecifies the
approved maximum speed of the tire.
iTire data is vehicle-specific and may deviate
from the data in the example.
Regardless of the speed rating, always observe
the speed limits. Driv ecarefully and adapt your
driving style to the traffic conditions.
Summer
tires
IndexSpeed rating
Qup to 100 mph (160 km/h)
Rup to 106 mph (170 km/h)
Sup to 112 mph (180 km/h)
Tup to 118 mph (190 km/h)
Hup to 130 mph (210 km/h)
Vup to 149 mph (240 km/h)
Wup to 168 mph (270 km/h)
Yup to 186 mph (300 km/h)
ZR...Yup to 186 mph (300 km/h)
ZR...(..Y)over 186 mph (300 km/ h)
ZRover 149 mph (240 km/h)
ROptionally, tires withamaximum speed of
over 149 mph (240k m/h) may have "ZR" in
the sized escription, depending on the man-
ufacturer (e.g .245/4 0ZR18).
The service specification is made up of load-
bearingi ndexAand speed rating B.
RIf the sizedescription of your tir eincludes
"ZR" and there are no service specifications,
ask the tir emanufacturer in order to findo ut
the maximum speed.
If as ervice specification is available, the max-
imum speed is limited accordingtot he speed
rating in the service specification .Example:
245/4 0ZR18 97 Y. In this example, "97 Y" is
the service specification .The letter "Y" rep-
resent sthe speed rating. The maximum
speed of the tir eislimited to 186 mph
(300k m/h).
RThe sized escription for all tires with maxi-
mum speeds of over 186 mph (300k m/h)
must include "ZR", andthe service specifica-
tion must be given in parentheses. Example:
275/4 0ZR18( 99 Y). Spee drating "(Y)" indi-
cates that the maximum speed of the tir eis
over 186 mph (300k m/h).A sk the tir eman-
ufacturer about the maximum speed.
All-
weather
tires and
winter
tires
IndexSpeed rating
QM +S1up to 100 mph (160k m/h)
TM +S1up to 118 mph (190k m/h)
HM +S1up to 130 mph (210k m/h)
VM +S1up to 149 mph (240k m/h)
iNot all tires with the M+S marking provide
the driving characteristics of winter tires. In
additio ntothe M+S marking, winter tires also
have the isnowflakes ymbol on the tire
wall. Tires with this marking fulfill the require-
ments of the Rubber Manufacturers Associa-
tion (RMA) and the Rubber Association of
Canada (RAC) regarding the tir etraction on
snow. They have been especially developed
for driving on snow.
1Or M+S ifor winter tires.
270All about wheels and tires
Wheels and tires