Page 573 of 590

Overview of abbreviations used in the
following tire tables:
R BA: both axles
R FA: front axle
R RA: rear axle
The recommended pressures for various
operating conditions can be found:
R on the Tire and Loading Information placard
with the recommended tire pressures on
the B-pillar on the driver's side
R in the tire pressure table on the inside of
the fuel filler flap
Observe the notes on recommended tire
pressures under various operating conditions
(Y page 547).
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:
R tires of the same size on a given axle (left/
right)
R the same type of tires at a given time
(summer tires, winter tires, MOExtended
tires)
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 moun ttires that do not feature run-
flat properties, e.g. winter tires. ATIREFIT kit
may be obtained from a qualified specialist
workshop.
i Not all wheel and tire combinations are
available at the factory for all countries.
i On the following pages, you can find
information on approved wheelr ims and
tire sizes for equipping your vehicle with
winter tires. Winter tires are not available
at the factory as standard equipmen tor
optional extras.
If you would like to equip your vehicle with
approved winter tires, you may also, in certain circumstances, require rims of the
appropriate size. The sizes of the approved
winter tires may deviate from that of 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 combinations
571Wheels and tires Z
Page 574 of 590

Tires
SL 550 Summer tires
R18
Tires Allo
ywheels FA: 255/40 R18 95 Y
RA: 285/35 R18 97 Y
3 FA: 8.5 J x 18 H2
Wheel offset: 1.40 in (35.5 mm)
RA: 9.5 J x 18 H2
Wheel offset: 1.87 in (47.5 mm)
FA: 255/40 R18 95 Y MOExtended
4
RA: 285/35 R18 97 Y MOExtended 3, 4 FA: 8.5 J x 18 H2
Wheel offset: 1.40 in (35.5 mm)
RA: 9.5 J x 18 H2
Wheel offset: 1.87 in (47.5 mm)
R19
Tires Alloy wheels
FA: 255/35 R19 96 Y XL
RA: 285/30 R19 98 Y XL
3 FA: 8.5 J x 19 H2
Wheel offset: 1.40 in (35.5 mm)
RA: 9.5 J x 19 H2
Wheel offset: 1.87 in (47.5 mm)
FA: 255/35 R19 96 Y XL MOExtended
4
RA: 285/30 R19 98 Y XL MOExtended 3, 4 FA: 8.5 J x 19 H2
Wheel offset: 1.40 in (35.5 mm)
RA: 9.5 J x 19 H2
Wheel offset: 1.87 in (47.5 mm)
FA: 255/35 R19 96 Y XL
RA: 285/30 R19 98 Y XL
3 FA: 8.5 J x 19 H2
Wheel offset: 1.40 in (35.5 mm)
RA: 9.5 J x 19 H2
Wheel offset: 1.89 in (48 mm)
FA: 255/35 R19 96 Y XL MOExtended
4
RA: 285/30 R19 98 Y XL MOExtended 3, 4 FA: 8.5 J x 19 H2
Wheel offset: 1.40 in (35.5 mm)
RA: 9.5 J x 19 H2
Wheel offset: 1.89 in (48 mm)
3
The use of snow chains is not permitted. Observe the notes in the "Snow chains" section.
4 MOExtended tires (tires featuring run-fla tcharacteristics) only in combination with an activated tire pressure
loss warning system or tire pressure monitor. 572
Wheel and tire combinationsWheels and tires
Page 575 of 590

Winter tires
R18
Tires Alloy wheels
BA: 255/40 R18 99 V XL M+S
0003 BA: 8.5 J x 18 H2
Wheel offset: 1.40 in (35.5 mm)
BA: 255/40 R18 99 V XL M+S
0003MOExtended4 BA: 8.5 J x 18 H2
Wheel offset: 1.40 in (35.5 mm)
AMG vehicles
Summer tires
R19/R20
Tires Alloy wheels
FA: 255/35 ZR19 (96 Y) XL
RA: 285/30 ZR19 (98 Y) XL FA: 9.0 J x 19 H2
Wheel offset: 1.06 in (27 mm)
RA: 10.0 J x 19 H2
Wheel offset: 1.89 in (48 mm)
FA: 255/35 ZR19 (96 Y) XL
RA: 285/30 ZR20 (99 Y) XL
3 FA: 9.0 J x 19 H2
Wheel offset: 1.06 in (27 mm)
RA: 10.0 J x 20 H2
Wheel offset: 1.89 in (48 mm)
Winter tires
R19
Tires Alloy wheels
FA: 255/35 R19 96 V XL M+S
0003
RA: 285/30 R19 98 V XL M+S 0003 FA: 9.0 J x 19 H2
Wheel offset: 1.06 in (27 mm)
RA: 10.0 J x 19 H2
Wheel offset: 1.89 in (48 mm)
4
MOExtended tires (tires featuring run-fla tcharacteristics) only in combination with an activated tire pressure
loss warning system or tire pressure monitor.
3 The use of snow chains is not permitted. Observe the notes in the "Snow chains" section. Wheel and tire combinations
573Wheels and tires Z
Page 582 of 590

R
if the vehicle is carrying a light load, e.g.
two passengers without luggage, do not
allow the engine to rev above 300 0rpm.
R if the vehicle is fully loaded or is being
operated in mountainous terrain, do not
depress the accelerator pedal further
than 0001of the pedal travel.
Only refuel using premium-grade unleaded
gasoline with a minimum octane rating of 91.
Reformulated Gasoline (RFG) and/or
unleaded gasoline with additives can be used.
The concentration of additives in the fuel,
however, must not exceed 10%, e.g.:
R Ethanol
R TAME
R ETBE
R IPA
R TBA
For MTBE, the concentration should not
exceed 15%.
The concentration of methanol in gasoline,
including other additives, must not exceed
3%.
Using mixtures of methanol and ethanol is not
permitted. Gasohol, a mixture of 10% ethanol
and 90% unleaded gasoline, may be used.
All of these blends must fulfill the fuel
requirements, e.g.:
R knock resistance
R boiling point
R vapor pressure
You will usually find information about the fuel
grade on the pump. If you cannot find the
label on the pump, ask the staff for
assistance.
i For further information, consult a
qualified specialist workshop or on the
Internet at http://www.mbusa.com (USA
only).
Information on refueling (Y page 172).Additives in gasoline
!
Operating the engine with fuel additives
can increase wear and tear to the fuel
system high-pressure pump and lead to
contamination of the entire fuel system.
The repair costs are high. This does not
include additives for the removal and
prevention of residue buildup. gasoline
must only be mixed with additives
recommended by Mercedes-Benz .More
information about recommended additives
can be obtained from any authorized
Mercedes-Benz Center.
One of the main problems of poor fuel quality
is the forming of deposits that are created
during the gasoline combustion process.
Mercedes-Benz recommends that you use
branded fuels that have additives.
If you use fuels without these additives over
a longer period of time, carbon deposits may
build up. These deposits form at the inlet
valves and in the combustion chamber in
particular.
This could lead to engine problems, e.g.:
R longer engine warm-up phase
R uneven idle
R engine noise
R misfiring
R loss of power
Carbon deposits may form if the availability
of gasoline with relevant additives is
insufficient (in certain regions). In this case,
Mercedes-Benz recommends additives
approved for use in Mercedes-Benz vehicles;
see http://bevo.mercedes-benz.com.
For a list of approved products, consult an
authorized Mercedes-Benz Center. Comply
with the instructions for use on the product
label.
Do not mix other fuel additives with fuel. This
causes unnecessary costs and could damage
the engine. 580
Service products and filling capacitiesTechnical data