See also:

Deactivating/activating ESP®
Observe the "Important safety notes" section. WARNING ESP® should not be deactivated during normal driving other than in the circumstances described below. Disabling the system ...

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 ...

Checking the battery
Press the or button. The battery is working properly if battery check lamp 1 lights up briefly If battery check lamp 1 does not light up briefly during the test, the battery is dischar ...