See also:

Aspect ratio
Relationship between tire height and tire width in percent. ...

Problems with PARKTRONIC
Problem Possible causes/consequences and Solutions Only the red segments in the PARKTRONIC warning displays are lit. You also hear a warning tone for approximately two s ...

Tire tread
WARNING Although the applicable federal motor vehicle safety laws consider a tire to be worn when the tread wear indicators (TWI) become visible at approximately 1/16 in (1.6 mm), we recomm ...