See also:

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 ...

PSI (pounds per square inch)
A standard unit of measure for tire pressure. ...

PSI (pounds per square inch)
A standard unit of measure for tire pressure. ...