FFirsirst let letttter(s)er(s) 11::
RWithout: passenger vehicle tires according to
European manufacturing standards.
R"P": passenger vehicle tires according to US
manufacturing standards.
R"LT": light truck tires according to US manu-
facturing standards.
R"T": compact emergency spare wheels with
high tire pressure that are only designed for
temporary use in an emergency.
Aspect rAspect ratioatio 33::
Ratio between tire height and tire width in percent
(tire height divided by tire width).
TTirire codee code 44(tir(tire type):e type):
R"R" radial tire
R"D": bias ply tire
R"B": bias belted tires
R"ZR": radial tire with a maximum speed above
149 mph (240 km/h) (optional)
Rim diamet
Rim diameterer 55::
The diameter of the bead seat (not the diameter
of therim ange). The rim diameter is specied in
inches (in).
Load-bearLoad-bearing indeing indexx66::
Numerical code that species the maximum load-
bearing capacity of a tire (e.g. "91" corresponds
to 1356 lbs (615 kg)).
The load-bearing capacity of the tire must be at
least half thegross axle weight rating of your vehi-
cle. Do not overload the tires by exceeding the
specied load limit.
See also:
RMaximum permissible load on theTire and
Loading Information placard (/page 388)
RMaximum tire load (/page 394)
RLoad index
Speed rSpeed ratingating 77::
Species the approved maximum speed of the
tire.
%An electronic speed limiter prevents your
vehicle from exceeding a speed of 130 mph
(210 km/h).
Make sure that your tires have therequired speed
rating. You can obtain information on therequired
speed rating from an authorized Mercedes-Benz
Center.
Summer tir
Summer tireses
IndexIndex Speed rSpeed ratingating
Qupto 100 mph (160 km/h)
Rupto 106 mph (170 km/h)
Supto 112 mph (180 km/h)
Tupto 118 mph (190 km/h)
Hupto 130 mph (210 km/h)
Vupto 149 mph (240 km/h)
Wupto 168 mph (270 km/h)
Yupto 186 mph (300 km/h)
396396 Wheels and tires
