Torque speck's...
sidney...
Big Daddy is "right on."
I remove my wheels every several weeks to clean the inner rims on my '04 Z4.
BMW recommends the use of a torque wrench when removing/replacing the
vehicle's rims...
When in doubt ask a BMW technician [or] hit your local 'Barnes & Noble' and check
the automotive section and check in a Chilton's Manual.