Operation, Tires and wheels – Mercedes-Benz G-Class 2009 Owners Manual User Manual

Page 176

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pertaining to special driving situations can be
found on the tire inflation pressure label on
the inside of the fuel filler flap.

Rim

A metal support for a tire or a tire and tube
assembly upon which the tire beads are
seated.

Sidewall

The portion of a tire between the tread and
the bead.

TIN (Tire Identification Number)

Unique identifier which facilitates efforts by
tire manufacturers to notify purchasers in
recall situations or other safety matters
concerning tires and gives purchasers the
means to easily identify such tires. The TIN is
comprised of “Manufacturer’s identification
mark”, “Tire size”, “Tire type code” and “Date
of manufacture”.

Tire load rating

Numerical code associated with the
maximum load a tire can support.

Tire ply composition and material used

This indicates the number of plies or the
number of layers of rubber-coated fabric in
the tire tread and sidewall. Tire
manufacturers also must indicate the ply
materials in the tire and sidewall, which
include steel, nylon, polyester, and others.

Tire speed rating

Part of tire designation; indicates the speed
range for which a tire is approved.

Total load limit

Rated cargo and luggage load plus
68 kilograms (150 lb) times the vehicle’s
designated seating capacity.

Traction

Force exerted by the vehicle on the road via
the tires. The amount of grip provided.

Tread

The portion of a tire that comes into contact
with the road.

Treadwear indicators

Narrow bands, sometimes called “wear bars”
that show across the tread of a tire when only

1

/

16

in (1.6 mm) of tread remains.

TWR (Tongue Weight Rating)

Maximum permissible weight on trailer
tongue.

Uniform Tire Quality Grading Standards

A tire information system that provides
consumers with ratings for a tire’s traction,
temperature and treadwear. Ratings are
determined by tire manufacturers using U.S.
government testing procedures. The ratings
are molded into the sidewall of the tire.

Vehicle maximum load on the tire

Load on an individual tire that is determined
by distributing to each axle its share of the
maximum loaded vehicle weight and dividing
it by two.

174

Tires and wheels

Operation

463_AKB; 2; 52, en-US
d2ureepe,

Version: 2.11.7.1

2008-12-02T10:52:11+01:00 - Seite 174

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