2014 BMW X1 SAV Steering Problems

I PURCHASED THE CAR USED FROM A NON-BMW DEALER AT 40,500 MILES IN DEC. 2016. THE VEHICLE MOVED LEFTWARD WHEN THE STEERING WHEEL WAS CENTERED. THE DSC/ESC MALFUNCTION LIGHT ILLUMINATED ALONG WITH ANOTHER ESC SYMBOL WITH AN EXCLAMATION POINT PRESENTED IN THE CENTER IP MESSAGE AREA LIGHT. THE MALFUNCTION LIGHT WOULD TURN OFF WHEN THE ENGINE WAS SHUT OFF. THE LIGHT CAME ON (AND OFF) SEVERAL TIMES OVER 3000 MILES. I TOOK THE CAR TO A BMW SERVICE SHOP AND WAS TOLD THAT A STEERING SYSTEM FAULT HAD BEEN STORED, BUT ONLY ONCE SO THEY DIDN'T DO ANYTHING EXCEPT PERFORM AN ALIGNMENT. AFTER SERVICE WAS COMPLETED, I PICKED UP THE VEHICLE AND FOUND THAT IT STILL PULLED LEFT AND THE DSC LIGHT CAME ON AGAIN. I RETURNED TO THE BMW SHOP WHILE THE LIGHT WAS ON AND THEY LOOKED AT IT AGAIN. THEY ENDED UP ALIGNING THE VEHICLE AGAIN AND...