See also:

The mbrace system
The mbrace system provides different services, e.g.: automatic and manual emergency call Roadside Assistance call MB Info call To adjust the volume during an mbrace call, proceed as follows ...

Capacities
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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 20 mph (30 km/h), BAS PLUS assists ...