13 71 155 Remove clean air pipe (N20)

Release clamp (1).

Tightening torque: 13 71 2AZ .

Release clamp (2) on intake silencer housing.

Tightening torque: 13 71 1AZ .

Feed out clean air pipe (3) and remove.

Fig 1: Identifying Clamp And Air Pipe

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.