Bas/Esp light coming on

[mukamika]

Hi all,

I have a W168 170 CDI manual. The Bas/Esp light is coming on, this only happens after first press of brake pedal. I have replaced the brake light switch and have a code of C1201. Does anybody know how I might fix this problem? Brakes ans ABS works fine?

 

[Auto-mobile]

Think it's the pressure sensor in the brake servo (not available seperatley) you would need to get it checked.