Mercedes-Benz 2006 C 55 AMG Operator's Manual page 324

Rim diameter
The rim diameter 4 ( page 322) is the
diameter of the bead seat, not the
diameter of the rim edge. Rim diameter is
indicated in inches (in).
Tire load rating
The tire load rating 5 ( page 322) is a
numerical code associated with the
maximum load a tire can support.
For example, a load rating of 91 corre-
sponds to a maximum load of 1356 lbs
(615 kg) the tire is designed to support.
See also "Maximum tire load"
( page 327) where the maximum load as-
sociated with the load index is indicated in
kilograms and lbs.
Warning!
The tire load rating must always be at least
half of the GAWR ( page 332) of your vehi-
cle. Otherwise, tire failure may be the result
which may cause an accident and/or seri-
ous personal injury to you or others.
Always replace rims and tires with the same
designation, manufacturer and type as
shown on the original part.
Warning!
Do not overload the tires by exceeding the
specified load limit or vehicle capacity
weight as indicated on the placard located
on the driver's door B-pillar. Overloading the
tires can overheat them, possibly causing a
blowout. Overloading the tires can also
result in handling or steering problems, or
brake failure.
For additional information on tire load
G
rating, see "Load identification"
( page 325).
i
Tire load rating 5 ( page 322) and
tire speed rating 6 ( page 322) are
also referred to as "service descrip-
tion".
G
Operation
Tires and wheels
323