Tire identification marks – BMW 550i xDrive Sedan 2011 User Manual
Page 249
Tire size
Pressure specifications
in bar/PSI
The values in ( ) apply if
the vehicle is equipped
with the high speed tun‐
ing feature
F: 245/40 R 19 94 Y
R: 275/35 R 19 96 Y
2,6 / 36
-
-
2.7 / 39
F: 245/35 R 20 95
Y XL
R: 275/30 R 20 97
Y XL
2.7 / 39
-
-
3.1 / 45
With high-speed tuning feature
Tire size
Pressure specifications in
bar/PSI
The values in ( ) apply if
the vehicle is equipped
with the high speed tun‐
ing feature
Specifications in
bar/PSI with cold
tires
245/45 R 18 96 Y
245/45 R 18 100
V M+S XL
2.9 /42
3.4 / 49
F: 245/45 R 18 96
Y
R: 275/40 R 18 99
Y
2.9 /42
-
-
2.9 /42
F: 245/40 R 19 94
Y
R: 275/35 R 19 96
Y
2.9 /42
-
-
3.2 / 46
F: 245/35 R 20 95
Y XL
R: 275/30 R 20 97
Y XL
3.1 / 45
-
-
3.4 / 49
Tire identification marks
Tire size
255/50 R 19 103 Y
255: nominal width in mm
50: aspect ratio in %
R: radial tire code
19: rim diameter in inches
103: load rating, not for ZR tires
Y: speed rating, before the R on ZR tires
Speed letter
T = up to 118 mph, 190 km/h
H = up to 131 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
Tire Identification Number
DOT code: DOT xxxx xxx 3510
xxxx: manufacturer code for the tire brand
xxx: tire size and tire design
3510: tire age
Tires with DOT codes meet the guidelines of the
U.S. Department of Transportation.
Tire age
DOT … 3510: the tire was manufactured in the
35th week in 2010.
Recommendation
Regardless of wear, replace tires at least every
6 years.
Uniform Tire Quality Grading
Quality grades can be found where applicable
on the tire sidewall between tread shoulder and
maximum section width.
For example: Treadwear 200; Traction AA;
Temperature A
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