RBreak in new tires at moderate speeds for thefirst 60 miles (100 km). They only reach their
full performance after this distance.
RDo not drive with tires which have too little
tread depth, as this significantly reduces the
traction on wet roads (hydroplaning).
RReplace the tires after six years at the latest,
regardless of wear.
MOExtended tires (tires with run-flat
properties)
With MOExtended tires (tires with run flat char-
acteristics), you can continue to drive your vehi-
cle even if there is a total loss of pressure in one
or more tires.
MOExtended tires may only be used in conjunc-
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 (
Ypage 368).
Vehicles equipped with MOExtended tires are
not equipped with a TIREFIT kit at the factory. It
is therefore recommended that you additionally
equip your vehicle with a TIREFIT kit if you mount
tires that do not feature run-flat properties, e.g.
winter tires. A TIREFIT kit can be obtained from a qualified specialist workshop.
Winter operation
General notes
Have your vehicle winterproofed at a qualified
specialist workshop at the onset of winter.
Observe the notes in the "Changing a wheel"
section (
Ypage 405).
Driving with summer tires
At temperatures below 45 ‡ (+7 †), summer
tires lose elasticity and therefore traction and
braking power. Change the tires on your vehicle
to M+S tires. Using summer tires at very cold
temperatures could cause cracks to form,
thereby damaging the tires permanently.
Mercedes-Benz cannot accept responsibility for
this type of damage.
GWARNING
Damaged tires can cause tire inflation pres-
sure loss. As a result, you could lose control of
your vehicle. There is a risk of accident.
Check the tires regularly for signs of damage
and replace any damaged tires immediately.
M+S tires
GWARNING
M+S tires with a tire tread depth of less than
ã in (4 mm) are not suitable for use in winter
and do not provide sufficient traction. There is
a risk of an accident.
M+S tires with a tread depth of less than ãin
(4 mm) must be replaced immediately.
At temperatures below 45 ‡(+7 †), use winter
tires or all-season tires. Both types of tire are
identified by the M+S marking.
Only winter tires bearing the isnowflake
symbol in addition to the M+S marking provide
the best possible grip in wintry road conditions.
Only these tires will allow driving safety systems
such as ABS and ESP
®to function optimally in
winter. These tires have been developed 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 maximum permissible
speed specified for the M+S tires you have
mounted.
When you have mounted M+S tires:
XCheck the tire pressures (Ypage 390).
XRestart the tire pressure monitor
(Ypage 392).
Snow chains
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 a risk of an accident.
386Winter operation
Wheels and tires
Example:
RTreadwear grade:200
RTraction grade:AA
RTemperature grade: A
All passenger car tires must conform to the stat-
utory safety requirements in addition to these
grades.
iThe actual values for tires are vehicle-spe-
cific and may deviate from the values in the
illustration.
Treadwear
The treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified U.S.
government course. For example, a tire graded
150 would wear one and one-half times as well
on the government test track as a tire graded
100.
The relative performance of tires depends upon
the actual conditions of their use, however, and
may depart significantly from the norm due to
variations in driving habits, service practices
and differences in road characteristics and cli-
mate.
Traction
GWARNING
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration, cor-
nering, hydroplaning, or peak traction char-
acteristics.
!Avoid wheelspin. This can lead to damage to
the drive train.
The traction grades – from highest to lowest –
are AA, A, B and C. Those grades represent the
tire's ability to stop on wet pavement as meas-
ured under controlled conditions on specified
government test surfaces of asphalt and con-
crete. A tire marked C may have poor traction
performance.
The safe speed on a wet, snow covered or icy
road is always lower than on dry road surfaces.
You should pay special attention to road condi-
tions when temperatures are around freezing
point. Mercedes-Benz recommends a minimum tread
depth of
ãin (4 mm) on all four winter tires.
Observe the legally required minimum tire tread
depth (
Ypage 385). Winter tires can reduce the
braking distance on snow-covered surfaces in
comparison with summer tires. The braking dis-
tance is still much further than on surfaces that
are not icy or covered with snow. Take appro-
priate care when driving.
Further information on wi nter ti
res (M+S tires)
(Ypage 386).
Temperature
GWARNING
The temperature grade for this tire is estab-
lished for a tire that is properly inflated and
not overloaded. Excessive speed, underinfla-
tion, or excessive loading, either separately or
in combination, can cause excessive heat
build-up and possible tire failure.
The temperature grades are A (the highest), B,
and C, representing the tire's resistance to the
generation of heat and its ability to dissipate
heat when tested under controlled conditions
on a specified indoor laboratory test wheel. Sus-
tained high temperature can cause the material
of the tire to degenerate and reduce tire life, and
excessive temperature can lead to sudden tire
failure. The grade C corresponds to a level of
performance which all passenger car tires must
meet under the Federal Motor Vehicle Safety
Standard No. 109. Grades B and A represent
higher levels of performance on the laboratory
test wheel than the minimum required by law.
All about wheels an d tires399
Wheels and tires
Z
Load-bearing index:load-bearing indexAis a
numerical code that specifies the maximum
load-bearing capacity of a tire.
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's side (
Ypage 394).
Example:
Load-bearing index 91 indicates a maximum
load of 1,356 lb (615kg )tha tthe tire sca nbe ar.
For further information on the maximum tire
load in kilograms and lbs, see (
Ypage 402).
For further information on the load bearing
index, see "Load index" (
Ypage 402).
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. Drive carefully 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 (300km/ h)
ZRover 149 mph (240 km/h)
ROptionally, tires with a maximum speed of
over 149 mph (240 km/h) may have "ZR" in
the size description, depending on the man-
ufacturer (e.g. 245/40 ZR18). The service specification is made up of load-
bearing index
Aand speed rating B.
RIf the size description of your tire includes
"ZR" and there are no service specifications,
ask the tire manufacturer in order to find out
the maximum speed.
If a service specification is available, the max-
imum speed is limited according to the speed
rating in the service specification. Example:
245/40 ZR18 97 Y. In this example, "97 Y" is
the service specification. The letter "Y" rep-
resents the speed rating. The maximum
speed of the tire is limited to 186 mph
(300 km/h).
RThe size description for all tires with maxi-
mum speeds of over 186 mph (300 km/h)
must include "ZR", andthe service specifica-
tion must be given in parentheses. Example:
275/40 ZR 18 (99 Y). Speed rating "(Y)" indi-
cates that the maximum speed of the tire is
over 186 mph (300 km/h). Ask the tire man-
ufacturer about the maximum speed.
All-weather tires and winter tires
IndexSpeed rating
Q M+S1up to 100 mph (160 km/h)
T M+S1up to 118 mph (190 km/h)
H M+S1up to 130 mph (210 km/h)
V M+S1up to 149 mph (240 km/h)
iNot all tires with the M+S marking provide
the driving characteristics of winter tires. In
addition to the M+S marking, winter tires also
have the isnowflake symbol 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 tire traction on
snow. They have been especially developed
for driving on snow.
An electronic speed limiter prevents your vehi-
cle from exceeding a speed of 130 mph
(210 km/h).
The speed rating of tires mounted at the factory
may be higher than the maximum speed that the
electronic speed limiter permits.
Make sure that your tires have the required
speed rating, e.g. when buying new tires. The
1Or M+S ifor winter tires.
All about wheels and tires401
Wheels and tires
Z
XTighten the wheel bolts evenly in a crosswisepattern in the sequence indicated (: toA).
The tightening torque must be 110 lb-ft
(150 Nm).
XTurn the jack back to its initial position.
XStow the jack and the rest of the vehicle tools
in the trunk again.
XMercedes-AMG vehicles and vehicles
with AMG equipment: insert the cover into
the outer sill.
XCheck the tire pressure of the newly mounted
wheel and adjust it if necessary.
Observe the recommended tire pressure
(
Ypage 387).
iVehicles with a tire pressure control system:
all mounted wheels must be equipped with
functioning tire pressure control sensors.
Wheel and tire combinations
General notes
!
For safety reasons, Mercedes-Benz recom-
mends that you only use tires and wheels
which have been approved by Mercedes-Benz
specifically for your vehicle.
These tires have been specially adapted for
use with the control systems, such as ABS or
ESP
®, and are marked as follows:
RMO = Mercedes-Benz Original
RMOE = Mercedes-Benz Original Extended
(tires featuring run-flat characteristics)
RMO1 = Mercedes-Benz Original (only cer-
tain AMG tires)
Mercedes-Benz Original Extended tires may
only be used on wheels that have been spe-
cifically approved by Mercedes-Benz.
Only use tires, wheels or accessories tested
and approved by Mercedes-Benz. Certain
characteristics, e.g. handling, vehicle noise
emissions or fuel consumption, may other-
wise be adversely affected. In addition, when
driving with a load, tire dimension variations
could cause the tires to come into contact
with the bodywork and axle components. This
could result in damage to the tires or the vehi- cle.
Mercedes-Benz accepts no liability for dam-
age resulting from the use of tires, wheels or accessories other than those tested and
approved.
Information on tires, wheels and approved
combinations can be obtained from any quali-
fied specialist workshop.
!Retreaded tires are neither tested nor rec-
ommended by Mercedes-Benz, since previ-
ous damage cannot always be detected on
retreaded tires. As a result, Mercedes-Benz
cannot guarantee vehicle safety if retreaded
tires are mounted. Do not mount used tires if
you have no information about their previous
usage.
Overview of abbreviations used in the following
tire tables:
RBA: both axles
RFA: front axle
RRA: rear axle
The recommended pressures for various oper-
ating conditions can be found:
Ron the Tire and Loading Information placard
on the B-pillar on the driver's side
Rin the tire pressure table in the fuel filler flap
Observe the notes on recommended tire pres-
sures under various operating conditions
(
Ypage 387).
Check tire pressures regularly, and only when
the tires are cold. Comply with the maintenance
recommendations of the tire manufacturer in
the vehicle document wallet.
Notes on the vehicle equipment – always equip
the vehicle with:
Rwith tires of the same size on a given axle (left
and right)
Rthe same type of tires at a given time (summer
tires, winter tires, MOExtended tires)
Exception: it is permissible to install a differ-
ent type or make in the event of a flat tire.
Observe the "MOExtended tires (tires with
run-flat characteristics" section (
Ypage 368).
Vehicles equipped with MOExtended tires are
not equipped with a TIREFIT kit at the factory. It
is therefore recommended that you additionally
equip your vehicle with a TIREFIT kit if you mount
tires that do not feature run-flat properties, e.g.
winter tires. A TIREFIT kit may be obtained from a qualified specialist workshop.
iNot all wheel and tire combinations are
available at the factory for all countries.
410Wheel and tire combinations
Wheels and tires
iThe following pages contain information on
approved wheel rims and tire sizes for equip-
ping your vehicle with winter tires. Winter
tires are not available at the factory as stand-
ard equipment or optional extras.
If you want to equip your vehicle with
approved winter tires, it may be necessary to
obtain wheel rims in the corresponding size.
The size of the approved winter tires may dif-
fer from the standard tires. This is dependent
on the model and the equipment installed at
the factory.
The tires and wheel rims, as well as further
information, can be obtained at a qualified
specialist workshop.
Wheel and tire combinations411
Wheels and tires
Z
All-weather tires
R18
TiresWheels
BA:245/50 R18 10 0 HM+S3,4BA :8. 0 J x 18 H2
Whee loffset :1.61 in (41 mm)
R19
TiresWheels
FA :245/45 R19 10 2 HXL M+S3,4
RA: 275/40 R19 10 1 HM+S2, 3, 4
FA:8. 5 J x 19 H2
Whee loffset :1.42 in (36 mm)
RA: 9. 5 J x19 H2
Whee loffset :1.71 in (43.5 mm)
FA :245/45 R19 10 2 HXL M+S3
RA: 275/40 R19 10 1 HM+S2,3
FA :8. 5 J x 19 H2
Whee loffset :1.50 in (38 mm)5
RA: 9. 5 J x19 H2
Whee loffset :1.50 in (38 mm )5
Winter tires
R18
TiresWheels
BA:245/50 R18 10 4 VXL M+S i3BA:8. 0 J x 18 H2
Whee loffset :1.61 in (41 mm)
R19
TiresWheels
BA :245/45 R19 10 2 VXL M+S i3BA:8. 5 J x 19 H2
Whee loffset :1.42 in (36 mm)
BA :245/45 R19 10 2 VXL M+S i3BA:8. 5 J x 19 H2
Whee loffset :1.50 in (38 mm)5
3Available as MOExtended tires4Not in conjunctio nwit hAM Glin e(code 951).2Use of snow chain sno tpermitted. Observ eth enote sin th e"Snow chains" section.5Only in conjunctio nwit hAM Glin e(code 951).
Wheel and tire combinations413
Wheels and tires
Z
All-weather tires
R18
TiresWheels
BA:245/50 R18 10 0 HM+S3,4BA :8. 0 J x 18 H2
Whee loffset :1.61 in (41 mm)
R19
TiresWheels
FA :245/45 R19 10 2 HXL M+S3,4
RA: 275/40 R19 10 1 HM+S2, 3, 4
FA:8. 5 J x 19 H2
Whee loffset :1.42 in (36 mm)
RA: 9. 5 J x19 H2
Whee loffset :1.71 in (43.5 mm)
FA :245/45 R19 10 2 HXL M+S3
RA: 275/40 R19 10 1 HM+S2,3
FA :8. 5 J x 19 H2
Whee loffset :1.50 in (38 mm)5
RA: 9. 5 J x19 H2
Whee loffset :1.50 in (38 mm )5
Winter tires
R18
TiresWheels
BA:245/50 R18 10 4 VXL M+S i3BA:8. 0 J x 18 H2
Whee loffset :1.61 in (41 mm)
R19
TiresWheels
BA :245/45 R19 10 2 VXL M+S i3BA:8. 5 J x 19 H2
Whee loffset :1.42 in (36 mm)
BA :245/45 R19 10 2 VXL M+S i3BA:8. 5 J x 19 H2
Whee loffset :1.50 in (38 mm)5
3Available as MOExtended tires4Not in conjunctio nwit hAM Glin e(code 951).2Use of snow chain sno tpermitted. Observ eth enote sin th e"Snow chains" section.5Only in conjunctio nwit hAM Glin e(code 951).
Wheel and tire combinations415
Wheels and tires
Z
All-weather tires
R19
TiresWheels
FA:245/45 R19 10 2 HXL M+S3,4
RA: 275/40 R19 10 1 HM+S2, 3, 4
FA:8. 5 J x 19 H2
Whee loffset :1.42 in (36 mm)
RA: 9. 5 J x19 H2
Whee loffset :1.71 in (43.5 mm)
FA :245/45 R19 10 2 HXL M+S3
RA: 275/40 R19 10 1 HM+S2,3
FA :8. 5 J x 19 H2
Whee loffset :1.50 in (38 mm)5
RA: 9. 5 J x19 H2
Whee loffset :1.50 in (38 mm )5
Winter tires
R18
TiresWheels
BA:245/50 R18 10 4 VXL M+S i3BA:8. 0 J x 18 H2
Whee loffset :1.61 in (41 mm)
R19
TiresWheels
BA :245/45 R19 10 2 VXL M+S i3BA:8. 5 J x 19 H2
Whee loffset :1.42 in (36 mm)
BA :245/45 R19 10 2 VXL M+S i3BA:8. 5 J x 19 H2
Whee loffset :1.50 in (38 mm)5
S 550 4MATIC
Summer tires
R18
TiresWheels
BA :245/50 R18 10 0 WBA:8. 0 J x 18 H2
Whee loffset :1.61 in (41 mm)
3Available as MOExtended tires4Not in conjunctio nwit hAM Glin e(code 951).2Use of snow chain sno tpermitted. Observ eth enote sin th e"Snow chains" section.5Only in conjunctio nwit hAM Glin e(code 951).
Wheel and tire combinations417
Wheels and tires
Z