Activation/deactivation

Press the button.
See also:
BMW Maintenance System
The maintenance system directs you to required
maintenance measures and thereby supports
you in maintaining road safety and the operational
reliability of the vehicle. ...
Folding forward the center head
restraint
Before using the center seat, fold the center
head restraint forward.
Press the button, arrow 1, and fold the head restraint
forward. ...
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 ...
