Change my brake switch but esp and bas still Reappearing on c240 Benz 2001

What is your question?

It appears randomly, sometimes everyday After a 10min drive or after a 30min drive, it will go away for a day or 3(a week Or 2) then reappear. It reset Constantly when I turn off the car then reappear. Did a tune up With spark plug , spark wire, coil pack, oil change, oil filter, air filter, brake light switch. Going to check my brake pads then bars and joint(forgot what there called at the moments lol) and Angle sensor, then Speed sensor if nothing works. I don’t want to keep spending more money.

How long has your 2001 Mercedes-Benz C240 had this problem?

A week