driver's seat control positioning panel just stop working after a tune up. on 1997 BMW 540i

I checked the fuse box and it was blown and put another one there and the same thing happened. It worked perfectly fine before the tune up. Please someone HELP ME!!!!! I HAVE NO IDEA WHAT IS GOING ON. THE PASSENGER SIDE IS FINE. I cannot move the driver's seat at all and it is too close on the steering wheel.

Asked by for the 1997 BMW 540i