Increased vehicle weight due to optional
equipment
This is the combined weight of all standard
and optional equipment available for the vehi-
cle, regardless of whether it is actually instal-
led on the vehicle or not.
Rim
This is the part of the wheel on which the tire
is mounted.
GAWR (Gross Axle Weight Rating)
The GAWR is the maximum permissible axle
weight. The actual load on an axle must neverexceed the gross axle weight rating. The
gross axle weight rating can be found on the
vehicle identification plate on the B-pillar on
the driver's side.
Speed rating
The speed rating is part of the tire identifica-
tion. It specifies the speed range for which the
tire is approved.
GVW (Gross Vehicle Weight)
The gross vehicle weight includes the weight
of the vehicle including fuel, tools, the spare
wheel, accessories installed, occupants, lug-
gage and the drawbar noseweight, if applica-
ble. The gross vehicle weight must not exceedthe gross vehicle weight rating GVWR as
specified on the vehicle identification plate on
the B pillar on the driver's side.
GVWR (Gross Vehicle Weight Rating)
The GVWR is the maximum permissible gross
weight of a fully loaded vehicle (the weight of
the vehicle including all accessories, occu-
pants, fuel, luggage and the drawbar nose-
weight, if applicable). The gross vehicle
weight r
ating is specified on the vehicle iden-
tification plate on the B-pillar on the driver's
side.
Maximum loaded vehicle weight
The maximum weight is the sum of:
Rthe curb weight of the vehicle
Rthe weight of the accessories
Rthe load limit
Rthe weight of the factory installed optional
equipment
Kilopascal (kPa)
Metric unit for tire pressure. 6.9 kPa corre-
sponds to 1 psi. Another unit for tire pressure is bar. There are 100 kilopascals (kPa) to
1 bar.
Load index
In addition to the load-bearing index, the load
index may also be imprinted on the sidewall of
the tire. This specifies the load-bearing capa-
city more precisely.
Curb weight
The weight of a vehicle with standard equip-
ment including the maximum capacity of fuel,
oil and coolant. It also includes the air-condi-
tioning system and optional equipment if
these are installed in the vehicle, but does not
include passengers or luggage.
Maximum load rating
The maximum tire load is the maximum per-
missible weight in kilograms or lbs for which a
tire is approved.
Maximum permissible tire pressure
Maximum permissible tire pressure for one
tire.
Maximum load on one tire
Maximum load on one tire. This is calculated
by dividing the maximum axle load of one axle
by two.
PSI (pounds per square inch)
A st
andard unit of measure for tire pressure.
Aspect ratio
Relationship between tire height and tire
width in percent.
Tire pressure
This is pressure inside the tire applying an
outward force to each square inch of the tire's
surface. The tire pressure is specified in
All about wheels and tires587
Wheels and tires
Z
XClean the wheel and wheel hub contact
surfaces.
XSlidethe wheel to be mounted onto the
alignment bolt and push iton.
XTighten the wheel bolts until they are fin-
ger-tight.
XUnscrew the alignment bolt.
XTighten the last wheel bolt until itis finger-
tight.
Lowering the vehicle
GWARNIN G
The wheels could work loos eif th ewhee lnut s
and bolt sare no ttightened to th especifie d
tightening torque .Ther eis aris kof accident.
Hav eth etightening torque immediately
checked at aqualified specialist worksho p
after awhee lis changed.
XTurn the crank of the jack counter-clock-
wise untilthe vehicle isonce again standing
firmly on the ground.
XPlace the jack to one side.
XTighten the wheel bolts evenly ina cross-
wise pattern inthe sequence indicated ( :
to A). The specified tightening torque is
96 lb-ft (130 Nm).
XTurn the jack back to its initial position.
XSt ow the jack and the rest of the vehicle
tools inthe trunk again.
XMercedes-AMG vehicles and vehicles
with AMG equipment: insert the cover
into the outer sill.
XCheck the tire pressure of the newly moun-
ted wheel and adjust it ifnecessary.
Observe the recommended tire pressure
(
Ypage 571).
iWhen you are drivingwith the emergency
spare wheel mounte d,the tire pressure
mon itor cannot function reliably. Only
restart the tire pressure monitor when the
defect ivewheel has been replaced with a
new wheel.
All mounted wheels must be equippedwith
functioning sensors for the tire pressure
mon itor.
Wheel and tire combinations
General notes
!
For safety reasons, Mercedes-Benz rec-
ommends that you only use tires and
wheels which have been approved by
Mercedes-Benz specific ally for your vehi-
cle.
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
(t ires 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
specifically approved byMercedes-Benz.
Only use tires, wheels or accessories tes-
ted and approved byMercedes-Benz. Cer-
tain characteristics, e.g. handlin g, vehicle
noise emissions or fuel consumption, may
otherwise beadverse lyaffected. Inaddi-
tion, when driving with a load, tire dimen-
sion variations could cause the tires to
come into contact with the bodywork and
Wheel and tire combinations593
Wheels and tires
Z
axle components. This could result in dam-
age to the tires or the vehicle.
Mercedes-Benz accepts no liability for
damage resulting from the use of tires,
wheels or accessories other than those tes-
ted and approved.
Information on tires, wheels and approved
combinations can be obtained from any
qualified specialist workshop.
!Retreaded tires are neither tested nor rec-
ommended by Mercedes-Benz, since pre-
vious 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 follow-
ing tire tables:
RBA: both axles
RFA: front axle
RRA: rear axle
The recommended pressures for various
operating conditions can be found:
Ron the Tire and Loading Information placard with the recommended tire pressures on
the B-pillar on the driver's side
Rin the tire pressure table on the inside of the
fuel filler flap
Observe the notes on recommended tire
pressures under various operating conditions
(
Ypage 571).
Check tire pressures regularly, and only when
the tires are cold. Comply with the mainte-
nance recommendations of the tire manufac-
turer in the v
ehicle 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 (sum-
mer tires, winter tires, MOExtended tires)
Exception: it is permissible to install a dif-
ferent type or make in the event of a flat tire. Observe the "MOExtended tires (tires
with run-flat characteristics" section
(
Ypage 551).
Vehicles equipped with MOExtended tires are not equipped with a TIREFIT kit at the factory.
It is therefore recommended that you addi-
tionally 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 work-
shop.
iNot all wheel and tire combinations are
available at the factory for all countries.
iThe following pages contain information
on approved wheel rims and tire sizes for
equipping your vehicle with winter tires.
Winter tires are not available at the factory
as standard 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 differ from the standard tires. This is
dependent on t
he model and the equip-
ment installed at the factory.
The tires and wheel rims, as well as further
information, can be obtained at a qualified
specialist workshop.
594Wheel and tire combinations
Wheels and tires