(E85) Z4 GS6-37BZ Manual Transmission (If Equipped)

(E85) Z4 GS6-37BZ Manual Transmission (if equipped)





The GS6-37BZ 6-speed manual transmission (H-gearbox) is used in the (E85) Z4 with the M54B30 engine. The gearbox is designed by Zahnradfabrik Friedrichshafen (ZF) and built and supplied by ZF and Getrag. This is why the gearbox designation bears the endings of both "Z" and "G." The changes to the GS6-37BZ compared with manual transmissions currently used in BMWs are:
^ Flanged damping block
^ Aluminium bolts (connecting to engine block)
^ Aluminium bolt (connecting case halves)
^ Input shaft mounting in dual-mass flywheel
^ Involute input shaft teeth Shift gate for guiding the selector shaft
^ External shift without play in neutral position
^ New dual-mass flywheel