See also:

Tire size
Example: 255/55 R 19 107 V 255: nominal width in mm 55: aspect ratio in % R: radial tire code 19: rim diameter in inches 107: load rating, not for ZR tires V: speed rating, before the R on ZR ti ...

BMW Assist or ConnectedDrive
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Switching off automatically
The system switches off and the LED goes out: ▷ After approx. 33 ft/10 m when driving forward. ▷ After approx. 9 mph/15 km/h when driving forward. Switch on the system again if necess ...