I have a 2011 BMW Z4 with 16000 miles. The last time I took it in for service the seat was moved. I had not initiated the memory so I could not get it back to the way I had it. Since then I have tried every button to try to make the seat comfortable but with no avail. I can not drive for more than twenty miles without getting a back ache. I am ready to sell the car I am so frustrated. Can you help?