They came in cast aluminium from the factory, which seams to have a weak point at the lower part where the two worm gears are mounted.
I thought about this when is first detected it but now it starts to make more sense.
I would like to have the whole gearbox remanufactured from billet aluminium. Maybe with a couple upgrades to strengthen that certain area for the future.
After some research I have found that this is a pretty common failure on these seats and it's usually fixed by replacing the parts with parts from donor seats. Since these are not going to be available forever and replacements parts are $300 from BMW NA each, I think it would make sense to come up with an improved part.
My question:
Would there be an interest in these parts here from anybody? Is it common that only the front plate of the housing brakes or is it also the back part?
I will have drawings made up soon and maybe a first prototype in a couple of weeks.
3D printing had crossed my mind, but I was thinking metal, even weak metal, has a variety of properties that often make plastic replacements inappropriate. But a redesign in plastic looks like a winner. You looking at making them or having them produced or what?
