115n
RepairsIndexOverview 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
1692W
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 
Everything from A to Z
183n
RepairsIndexOverview Controls Car care Technology Data
Ventilation 88
draft-free 92
Vinyl care 133WWarning lamp "Please fasten 
safety belts" 21
Warning lamps 20
Warning messages 77
Warranty and Service Guide 
Booklet 129
Washer nozzles 122
Washing your car 130
Water on roadways
deep water 104
Waxing, paintwork 132
Weights 172
Wheel lug wrench 148
Wheel rims 115
Wheelbase 171
Wheels and tires 115, 117
Width 171
Windows
ease of use actuation 34
remote control 35
Windshield cleaning
automatic program 70
Windshield washer nozzle 
adjustment 122
Windshield washer reservoir, 
filling 173
Windshield wiper 69Windshield wiper blade 
replacement 140
Winter driving 110
Winter operation 110
Winter tires 115, 116
Wiper blade 
replacement 140
Wiper system 69
Work in the engine 
compartment 119
XXenon lamp 141, 167