Overview of reinforcement plates

WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. However, it is still accessible from the selected car via links, so may be relevant.

Reinforcement plate, sill
Reinforcement plate, C-pillar
Reinforcement plate, universal
Reinforcement plate, C- or D-pillar
Lock nuts (not pictured)
- Plastic nut dia. 18 mm, part number 07 14 1 943 122
- Expansion nut dia. 22 mm, part number 07 14 7 169 847
  
  Fig 1: Identifying Reinforcement Plate Sill, C-Pillar, Universal And C/D-Pillar
  Courtesy of BMW OF NORTH AMERICA, INC.

Mark component in accordance with dimension a and cut.

Fig 2: Identifying Reinforcement Plate Cutting Mark Position

Courtesy of BMW OF NORTH AMERICA, INC.