See also:

Fuel gauge
The vehicle inclination may cause the display to vary. Notes on refueling ...

Tire inflation pressures X5 xDrive35i/X5 xDrive35d with two rows of seats
...

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 ...