13 71 170 Removing air duct (N55)

Necessary preliminary tasks: 

• Remove CLEAN AIR PIPE .
• Remove COOLANT PUMP .
• Remove COOLANT THERMOSTAT .

Release screw (1).

Tightening torque: 13 71 7AZ .

Release screw (2) on exhaust turbocharger.

Tightening torque: 13 71 8AZ .

Pull off air duct (3) from exhaust turbocharger, feed out and remove.

Fig 1: Identifying Air Duct And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.