Driver Seat Removal

[Gledhill]

I am trying to remove the front seat of my 1990 Alpina B10. I don't know if Alpina used something different to hold down the Recaro seats but I haven't seen this kind of a bolt before. The outside of the bolt is in the shape of a star with probably 8 points. I have seen bolts that hold down seats before where the outside is round and the inside is in a star pattern but not this way. Does anyone know what kind of a bolt this is and where I might find a tool to remove it.

The reason for removing the seat is because the seat height adjustment is not working and I thought that I would take the seat out and look at if a wire was cut or if maybe the motor could be replaced. If anyone has some insight on this it would be greatly appreciated as well.

Thanks,

Jesse

[shogun]

Nothing special, it is a outer torx. That you should have, because also the tranny has the se outer torx.
http://www.bmw-540i.com/1995-540i-seats/front-seat-removal.php