31 11 040 Remove and install/replace stiffening plate

Necessary preliminary tasks: 

• Remove underbody protection at front and rear. See REMOVING FRONT UNDERBODY PROTECTION  and REMOVING REAR UNDERBODY PROTECTION .

Release screws (1).

Remove thrust panel (reinforcement plate) (2).

Installation note: 

Replace screws (1).

Tightening torque 31 10 2AZ .

Fig 1: Identifying Reinforcement Plate And Mounting Screws

Courtesy of BMW OF NORTH AMERICA, INC.