13 71 190 Removing left clean air pipe (N63 B40/B44 O 1)

Necessary preliminary tasks: 

• Remove left CHARGE AIR HOSE .

Release screw (1).

Tightening torque 13 71 1AZ .

Unlock and pull off engine vent line.

Disconnect clean air pipe (2) from exhaust turbocharger and remove.

Replace sealing ring on exhaust turbocharger.

Fig 1: Identifying Clean Air Pipe And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.