2005 BMW Z4 3.0i 3.0si E86 Owners Manual

Z4 Coupe 3.0si
Tire size
Pressure specifications in psi/kPa
All pressure specifications in the table are
indicated in psi/kilopascal with cold tires,
cold = ambient temperature
225/45 R 17 91 W
225/45 R 17 91 H/V M+S
33/230
39/270
Front: 225/45 R 17 91W
Rear: 255/40 R 17 94 W
33/230
39/270
Front: 225/40 R 18 88 W
Rear: 255/35 R 18 90 W
33/230
39/270
You will find more information about permissible loads and weights on page 109.
Tire coding
DOT code:
e.g.
Understanding the lettering on the tire sidewall
makes it easier to identify and choose the cor-
rect tires.
DOT xxxx xxx 5005
Manufacturer's code
for tire make
Tire size and
tire design
Tire size
Tire age
e.g.
225/50   R  16   92    V
Nominal width in mm
Aspect ratio in Ξ
Tire age
The date on which the tire was manufactured is
indicated by the code on the sidewall:
DOT … 5005 indicates that the tire was manu-
factured in week 50 of the year 2005.
Radial belt construction
Rim diameter in inches
Load rating,
not on ZR tires
BMW recommends the replacement of all tires
every 6 years at the latest, even if a tire usage of
Speed code letter, in
front of the R on ZR tires
10
years is possible.
Uniform Tire Quality Grading
Speed code letter
Quality grades can be found where applicable
on the tire sidewall between tread shoulder and
maximum section width. For example:
Q
T
H
V
= up to 100 mph or 160 km/h
= up to 118 mph or 190 km/h
= up to 131 mph or 210 km/h
= up to 150 mph or 240 km/h
= up to 167 mph or 270 km/h
= up to 186 mph or 300 km/h
Treadwear 200 Traction AA
Temperature A
W
Y
DOT Quality Grades
Tread wear
Tire Identification Number
Traction AA A B C
Temperature A B C
Tires with DOT codes meet the guidelines of
the U.S. Department of Transportation.
82
Online Edition for Part-No. 01 41 0 012 083 - © 04/06 BMW AG
Product Specification
CategoriesBMW Manuals, BMW Z-Series Manuals
Tags, , ,
Model Year2005
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