MB w203 2002 - Car slips at uneven lanes

Question

Hi, i have an issue with my MB, it slips every time i drive on an uneven lane or when pass through a speed hump, is like stability system tries to correct the direction of the car, moving it to the right. I got no error codes on obd scanner (icarsoft 980) or in dash, by the way, scanners doesn't get any kind of error, recently i take the car to shop for alignment and balance of wheels, change both front links (just in case, one had the cover with a crack). everything looks good, car is in great condition, looks like new, already checked abs sensors, they had some dirt, but problem persist after blows pressure air, brake pads and rotors are new, everything changed/installed after issue appears.