Audi A8 2018 Owner's Manual page 288

Wheels
Bead
means the part of the tire that is
made of steel wires, wrapped or
reinforced by ply cords and that is
shaped to fit the rim.
Bead separation
means a breakdown of the bond
between components in the bead .
Cord
means the strands forming the
plies in the tire .
Cold tire inflation pressure
means the tire pressure recom-
mended by the vehicle manufac-
turer for a tire of a designated
size that has not been driven for
more t han a couple of miles (kilo-
meters) at low speeds in the
three hour period before the tire
pressure is measured or adjusted .
Curb weight
means the weight of a motor ve-
hicle with standa rd equipment in-
cluding the maximum capacity of
fuel, oil, and coolant, air condi-
tioning and addit ional weight of
optional equipment.
Extra load tire
means a tire designed to operate
at higher loads and at higher in-
28 6
flation pressures than t he corre-
spond ing standard tire. Extra load
tires may be identified as "XL",
"xl", "EXTRA LOAD" , or "RF" on
the sidewall.
Gross Axle Weight Rating
("GAWR")
means the load-car rying capacity
of a single axle system , measu red
at the ti re-ground interfaces .
Gross Vehicle Weight Rating
("GVWR")
means the maximum total loaded
weight of the vehicle .
Groove
means the space between two ad-
jacent tread ribs .
Load rating (code)
means the maximum load tha t a
tire is rated to carry for a given in-
flation pressure. You may not find
this informat ion on all ti res be-
cause it is not required by law.
Maximum load rating
means the load rating for a tire at
the maximum permissible infla-
tion pressure for that tire .
Maximum loaded vehicle
weight
means t he sum of: