[Chris325i]

replied on the "other board" also, but the trick to getting the bolster out is to slowly & firmly pull at the center on the side next to the folding seats, then also at the top as it starts to come loose. It is held in with 2 tabs on the bottom which slide up & out and a weird 2" square clip towards the top that separates into 2 pieces.

I did not need to remove the top trim, once I got the bolster off and removed the 3rd panel rivet I was able to wiggle the liner out, just SLIGHTLY and CAREFULLY bending the piece of top trim that sticks out downward out a little bit.

 

[Chris325i]

That's interesting, I have a 2001 325i w folding seats...similar bolster but apparently a completely different way of attaching it.

It's amazing how much of the car basically snaps together; it's just a matter of knowing where to pull or push.