according to Bentley manual from what you describe the part that is not working is called the 'Memory Switch'. It appears from my non-technical expertise that it can be non-functional and the other parts may work, again as you have explained. I searched on realoem for the part to no avail, you may have better luck. This may be one instance where going to a wreck yard for the part may save significant $$. Also, I would advise picking up your favorite manual ( i like bentley others may have different opinions) before you go ahead and rip out the seat. It looks as though it is much more complex than pulling out the switch in that you have to actually take out the whole seat to get at the switch? Others may chime in with their experiences... In any event, there are A LOT more parts than meet the eye when it comes to the seat. But the memory switch appears to be the culprit.

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'14 X1 7000 miles

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