BMW Repair: 1999 528i Drivers seat rear panel removal, side seat, retainer

Question
I need to get to the retainer for the driver's side seat panel for its removal and need to remove the driver's seat rear panel.  Can you help?

Answer

Seatback Not knowing which of 3 different seats you have, they all appear to have the back panels removed in same way.  See the attached diagram.  The fasteners at the bottom appear to need removing first.

It may be easier to remove the seat first.  This is "easy", but requires two people to guide it out and back in.