BMW 3 ELECTICAL SYSTEM Bedienungshandbuch PDF herunterladen (Seite 116)

116n

Wheel and tire combinations

The right choice

Use only BMW-approved tires. Refer to

page 118.

Due to the high speeds this vehicle can

reach, the use of specific brands, spec-

ifications and sizes is mandatory. Con-

sult any BMW center for details. Com-

ply with local/national regulations.

The correct wheel-tire combina-

tion affects different systems such

as ABS, ATC and DSC. The function of

these systems is impaired if improper

wheel-tire combinations are used.

For this reason, use only tires of the

same brand and tread pattern. In the

event of a flat tire, for example, remount

the approved wheel-tire combination as

soon as possible.<

Codes on tires and wheels

The tire codes will aid you in selecting

the correct tire.

The 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 = above 167 mph (270 km/h)

ZR = above 150 mph (240 km/h)

Example:

Nominal width

in mm

Aspect ratio in %

Radial tire ID code

Rim diameter in inches

Load rating

(not on ZR tires)

Speed rating

(before R on ZR tires)

205/60 R 1591W

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 valve from dirt by 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 15 H 2J

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