September 30: LEMON manuals is back up on a temporary server! Slowness is possible
Section 2561 (Restraints System - Tightening Torques)
WARNING: This page is about a different car, the 2010 BMW 135i, 2009 BMW 135i, and 2008 BMW 135i. However, it is still accessible from the selected car via links, so may be relevant.