Procedure steps

SPECIAL TOOLS AND TIGHTENING TORQUES: 

For additional information on special tools and tightening torques pertaining to this procedure, refer to the following:

• OVERVIEW OF TIGHTENING TORQUES 

PRE-PROCESSES: 

1. Removing the acoustic cover 
   • Raise acoustic cover (1).
   • Remove acoustic cover (1) in the direction of travel.
     Fig 1: Identifying Acoustic Cover

     Courtesy of BMW OF NORTH AMERICA, INC.
2. Releasing left charge air hose on exhaust turbocharger 
   • Unfasten clamp (1).
   • Bend charge air pipe (2) slightly to the side.
     Fig 2: Identifying Charge Air Pipe And Clamp

     Courtesy of BMW OF NORTH AMERICA, INC.

   KEY PROCESSES: 

3. Remove left clean air pipe. 
   • Version 1: 
   • 1. Unlock the retainer.
     2. At the same time, pull off connecting line from clean air pipe.
        Fig 3: Unlocking And Pulling-Off Retainer

        Courtesy of BMW OF NORTH AMERICA, INC.
   • Version 2: 
   • Lightly pull line (1) in the direction of the arrow.

     Simultaneously, unlock the latch mechanisms (2) one after the other using a screwdriver (3).

     Pull off connecting line from clean air pipe.

     Fig 4: Unlocking Latch Mechanisms

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   • Loosen screw (1).
   • Pull clean air pipe (2) from exhaust turbocharger.
     Fig 5: Identifying Clean Air Pipe And Screw

     Courtesy of BMW OF NORTH AMERICA, INC.
4. Install left clean air pipe 
   • Check the gasket on the clean air pipe.
   • Replace faulty gasket.
   • Position clean air pipe (2) on exhaust turbocharger.
   • Tighten down screw (1).
     TIGHTENING TORQUES SPECIFICATION
     
     

     Clean air pie to turbocharger
     M6	10 Nm

     Fig 6: Identifying Clean Air Pipe And Screw

     Courtesy of BMW OF NORTH AMERICA, INC.
   • Version 1: 
     NOTE: Ensure correct locking of all the retaining lugs. Retaining lugs must audibly snap into place.
   • Attach connecting line to clean air pipe.
     Fig 7: Attaching Connecting Line To Clean Air Pipe

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   • Version 2: 
     NOTE: Ensure correct locking of all the retaining lugs. Retaining lugs must audibly snap into place.
   • Attach connecting line (1) with the latch mechanisms (2) to clean air pipe.
     Fig 8: Attaching Connecting Line With Latch Mechanisms To Clean Air Pipe

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   POST PROCESSES: 

5. Fastening left charge air hose on exhaust turbocharger 
   • Check gasket between charge air hose and exhaust turbocharger.
   • Replace faulty gasket.
   • Position charge air hose (2) on exhaust turbocharger.
   • Tighten clamp (1).
     TIGHTENING TORQUES SPECIFICATION
     
     

     Charge air hose to exhaust turbocharger
     Screw clamp	3, 5 Nm

     Fig 9: Identifying Charge Air Pipe And Clamp

     Courtesy of BMW OF NORTH AMERICA, INC.
6. Install acoustic cover 
   NOTE: Ensure correct fit!
   • Insert acoustic cover (1) into existing rubber guides.
     Fig 10: Identifying Acoustic Cover

     Courtesy of BMW OF NORTH AMERICA, INC.