115
n
Repairs
Index
Overview
Controls
Car care
Technology
Data
Wheel and tire combinations
The right choice
Use only BMW-approved tires, refer to
page
117
.
Due to the high speeds this vehicle can
achieve, the use of specific tire brands,
specifications and dimensions is man-
datory.
Consult any BMW center for details.
Comply with local/national regulations.
The correct wheel/tire combinaton
affects different sytems, such as
ABS, ATC, DSC. The function of these
systems can be impaired if the correct
combinaton is not used.
Therefore, only use tires of the same
brand and tread pattern. Replace a flat
tire with an approved wheel/tire combi-
nation as soon as possible.
<
Codes on the tires and wheels
The tire codes will aid you in selecting
the correct tire.
Codes on radial tires:
The speed rating indicates the ap-
proved 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
= above 167 mph (270 km/h)
ZR = above 150 mph (240 km/h)
Example:
Nominal width
in mm
Aspect ratio in %
Radial tire code
Rim diameter in inches
Load rating
(not on ZR tires)
Speed rating
(before R on ZR tires)
225/50 R
16 92 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 valve inserts against dirt using
screw-on valve stem caps. Dirt in the
valves frequently leads to slow leaks.
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
7
x 16
H 2
J
Summary of Contents for 323Ci
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