See also:

Driving safety systems overview
In this section, you will find information about the following driving safety systems: - ABS (Anti-lock Braking System) - BAS (Brake Assist System) - BAS PLUS (Brake Assist System Plus*) ...

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

BAS PLUS (Brake Assist System Plus)
BAS PLUS is only available in vehicles equipped with DISTRONIC PLUS. Observe the "Important safety notes" section At speeds above approximately 4 mph (7 km/h), BAS PLUS assists you w ...