i have a MC S 04, when i start the engine automaticly the ABS and de yellow triangle(DSC) get on, then the flat tire , i check my presure there are ok i reset the flat tire with the down hand brake buttom and still goes on. what i have to do??? help i want everything back 2 normal again:impatient

 

It sounds like a faulty wheel speed sensor for the ABS.very common failure.

 

thanks ill check them and let it know thanks!!