Traction
The traction grades, from highest to lowest, are AA, A, B, and C.
Those grades represent the tire’s ability to stop on wet pavement as measured under controlled conditions on specified government test surfaces of asphalt and concrete. A tire marked C may have poor traction performance.
The traction grade assigned to this tire is based on straight-ahead braking traction tests, and does not include acceleration, cornering, hydroplaning, or peak traction characteristics.
See also:
Roadside Assistance
At a glance
BMW Roadside Assistance* can be contacted if
assistance is needed in the event of a breakdown.
Roadside Assistance* can also be contacted via
a Check Control message.
Starting Roads ...
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 ...
Units of measure
Setting the units of measure
To set the units for fuel consumption, route/distance,
temperature, and pressure:
1. "Settings"
2. "Language/Units"
Language/Units
3. Select t ...