See also:

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

Wheel and tire combinations
Please bear the following in mind For safety reasons, Mercedes-Benz recommends that you only use Tires and wheels which have been approved by Mercedes-Benz specifically for your vehicle. These ...

Derestricting the shift range
Pull the right-hand steering wheel paddle shifter. The shift range is derestricted. ...