See also:

System limits
Personal judgment The system cannot serve as a substitute for the driver's personal judgment of the traffic situation. The system assists the driver and does not replace the human eye.◄ T ...

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 ...

Following part replacement
The same breaking in procedures should be observed if any of the components mentioned above have to be renewed in the course of the vehicle's operating life. ...