Attention! When any of the differentials is locked, BAS is automatically switched off!
Warning! The emergency brake assist cannot prevent the risk of losing traction when skidding on turns or aquaplaning!
BAS helps to reduce the braking distance during emergency braking of the vehicle, and also ensures the full effectiveness of the ABS, ETS and ESP systems (see below).
When the foot brake pedal is pressed sharply, BAS provides maximum braking force - if there is a need to further brake the car, do not weaken the pedal pressure. When the foot brake pedal is released, BAS switches off automatically.
When the on-board power supply voltage drops below 10 V, the BAS amplifier is switched off - the corresponding indicator lamp lights up on the instrument cluster (a common indicator lamp is used for the BAS and ESP systems - see Section Instrument cluster, gauges, control lamps and indicator lights). Increasing the tension level automatically normalizes the situation.
(Material borrowed from an online resource: «www.mercedesman.ru»)