13 71 170 Removing air duct (N55)

Necessary preliminary tasks 

• Remove CLEAN AIR PIPE .
• Remove FAN COWL .
• Remove right charge-air duct.
• Only release expansion tank and place to one side, do not drain coolant. (Only E8x, E9x) 

Release screw (1).

Tightening torque 13 71 8AZ .

If necessary, release nut (2).

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

Fig 1: Identifying Air Duct Screw And Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.