How to fix driver side seat plastic mold from falling off!
Put plastic mold back in place. From the top front tip, take a marker and
trace around the seat, taking off about 1/8 inch, or enough not to leave
a big void. The objective is to get it away from the seat enough to keep
the seat from dislodging the plastic mold. In short, BMW allowed too
much of the mold to get too close to the seat. You can use whatever
method you chose to remove the excess. I put a hard object between
the seat and the hard plastic, and used a metal grinder to cut it off, I
would have done it different, like marking it, and then taken it off and do
a perfect job had I not already taken it off and putting it back on when
it was when I discovered what the problem was. So I just cut it off as I
stated. Starting from the front point, I took off about 6 or 7 inches to
the rear. You can take off as much as you deem possible!
I might add, I have a 1997 528i, I don't know, but I suspect there are
many more with the same problem, as I have read.