Lombard support broke

I don't know if many of you care, but have you had any problems with your lombard (sp?) support system.

I had it set since day one and never really played with it until a few days ago.
My sister got a 2004 BMW 330ci and I was joking with her on how my Cobra has the same creature comforts and when I went to show her my lombard support system it failed to work.

Is it an electric bump with a sort of inflated bladder or is it just a bump under the seat that mechanically rotates?

Thanks for the info...when I get a chance I'll take it to the dealership and see what they can do......or maybe not. Things tend to get worse when you take something small like that in. ie...comes back with the whole seat not working.