In Reply to: I did on another BMW and.... posted by BMleW on December 07, 1999 at 22:39:04:
: : Hello. I am researching the process of adding a lumbar support to my 2000 sport seat. I'm having a hard time getting comfortable, my lower back not getting enough support. My search of the archive found little that is conclusive on the subject. My dealers parts department groaned and moaned about looking up parts. I persisted and we came across various bits and pieces. I suspect that these should fit on the current seat back frame, consisting of a bladder and pump, along with the electrical switch. Has anyone else done this? Please advice.
: : Regards, Lennart
: I tried this on my old 535, and the experiment came up a failure. There were two problems, with one of them being fatal.
: The first is that the bulb has to come "out between the upholstery and the seatback, which is pretty tacky looking. The second problem was more terminal....the bladder eventually failed in service. I understand BMW has a sports seat for the 7er with lumbar. Too bad us low rent 5er guys don't rate!