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Mercedes-Benz CLS-Class 2007 Owners Manual User Manual

Page 316

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315

Operation

Tires and wheels

Tire code

The tire code

3 (

page 314) indicates

the tire construction type. The “R” stands
for radial tire type. Letter “D” means diag-
onal or bias ply construction; letter “B”
means belted-bias ply construction.

At the tire manufacturer’s option, any tire
with a speed capability above 149 mph
(240 km/h) can include a “ZR” in the size
designation (for example: 245/40 ZR 18).
For additional information, see “Tire speed
rating” (

page 316).

Rim diameter

The rim diameter

4 (

page 314) 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 314) 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 319) where the maximum load as-

sociated with the load index is indicated in
kilograms and lbs.

For additional information on tire load
rating, see “Load identification”
(

page 317).

Warning!

G

The tire load rating must always be at least

half of the GAWR (

page 323) 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!

G

Do not overload the tires by exceeding the

specified total load limit 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.

i

Tire load rating

5 (

page 314) and Tire

speed rating

6 (

page 314) are also referred

to as “service description”.