What does a bas indicator light on a 1999 Mercedes clk 320 mean?

A BAS (Brake Assist System) indicator light on a 1999 Mercedes CLK 320 typically indicates a malfunction in the brake assist system or related components, such as the brake sensors or ABS (Anti-lock Braking System). It may also suggest that the system is unable to detect the driver's braking force accurately. It's advisable to have the vehicle checked by a qualified technician to diagnose the issue and ensure safe braking performance. Ignoring the light could lead to compromised braking effectiveness.