try posting in the Z4 forum. they should be able to help you out. we have different seats!
7/18/09- I pick up my baby- 2009 E92 335i Xdrive, Space Gray over Coral Red. Premium Pkg, Cold Weather Pkg, M-Sport Pkg, 193Ms, Gloss Black grills, Custom Gloss Black Mirrors, Performance shift and E-brake boot, M3 spoiler, Euro fog switch, gloss black interior tim, Coco-Mats (red/black), H&R coilovers, 19'' Alufelgen SF-71s......