13 71 031 Replace the intake pipe for the intake silencer housing (N14, N18)

Necessary preliminary work: 

• Switch off ignition.
• Remove INTAKE SILENCER HOUSING .

Unclip the intake pipe (1) from the front panel (2), thread out and remove.

Fig 1: Identifying Intake Pipe And Front Panel

Courtesy of BMW OF NORTH AMERICA, INC.