101
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Index
Data
Technology
Repairs
Car care
Controls
Overview
Wheel and tire combinations
The right choice
Use only BMW-approved tires with
emergency driving characteristics.
Refer to page
Due to the maximum speeds this vehi-
cle can reach, the use of specific brands
and sizes is mandatory. Consult any
BMW center for details. Comply with
local/national regulations.
The correct wheel/tire combinaton
affects different sytems, such as
ABS, ATC, DSC and RDW. The function
of these systems is impaired if improper
wheel/tire combinations are used.
For this reason, use only tires made by
the same manufacturer that have the
same tread configuration and possess
emergency driving characteristics. And
after a flat tire, for instance, restore the
approved wheel-tire combination as
soon as possible.
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Codes on tires and wheels
The tire codes will aid you in selecting
the correct tire.
Codes on radial tires:
The speed rating indicates the approved
maximum speed for the tire.
Summer tires:
S
= up to 112 mph (180 km/h)
T
= up to 118 mph (190 km/h)
H
= up to 130 mph (210 km/h)
V
= up to 150 mph (240 km/h)
W = up to 167 mph (270 km/h)
Y
= up to 186 mph (300 km/h)
ZR = over 150 mph (240 km/h)
For example:
Nominal width
in mm
Aspect ratio in
X
Radial tire code
Rim diameter in inches
Load rating
(not on ZR tires)
Speed rating
(before R on ZR tires)
245/45 R 18 96 W
Winter tires:
Q M+S = up to 100 mph (160 km/h)
T M+S = up to 118 mph (190 km/h)
H M+S = up to 130 mph (210 km/h)
Codes stamped on light-alloy wheels:
Protect tire valves from dirt by using
screw-on valve stem caps. Dirt in the
valves frequently leads to slow leaks.
Tires with emergency driving character-
istics also possess an additional identi-
fication mark that varies by manufac-
turer, e.g.:
Bridgestone RFT
Dunlop
DSST
Goodyear
EMT
Michelin
ZP
For example:
Rim width
in inches
Code letter for
flange type
Symbol for full-drop
center rim
Rim diameter in inches
Hump on the 2 rim shoulders
8
x 18
H 2
J
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Summary of Contents for Z8 2000
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