Install both exhaust manifolds

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• Clean sealing surfaces (1).

Courtesy of BMW OF NORTH AMERICA, INC.

• Clean sealing surfaces (1).
• Replace seals (1).

  Parts:  Seals

• Position seals (1).

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• Install seal (1) with the side of the bead (2) (seal cavity) toward the exhaust manifold (3).

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• Position exhaust manifold (2).
• Replace screws (1).

  Parts:  Screws

• Tighten down screws (1).

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• Position exhaust manifold (2).
• Replace screws (1).

  Parts:  Screws

• Tighten down screws (1).

Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work 

• Refer to INSTALLING THE HEAT SHIELD OF THE CYLINDER HEAD COVER FOR CYLINDERS 5 TO 8 .
• Refer to INSTALLING THE HEAT SHIELD OF THE CYLINDER HEAD COVER FOR CYLINDERS 1 TO 4 .
• Refer to INSTALLING FRONT HEAT SHIELD .
• Refer to INSTALLING LEFT AND RIGHT EXHAUST TURBOCHARGERS .
• Refer to INSTALLING UPPER CATALYTIC CONVERTER NEAR ENGINE FOR BANK 2 .
• Refer to INSTALLING CATALYTIC CONVERTER NEAR THE ENGINE ABOVE CYLINDER BANK 1 .
• Refer to INSTALLING HEAT SHIELD, TOP .
• Refer to INSTALLING THE LAMBDA OXYGEN SENSOR FOR THE CYLINDERS 1 TO 4 .
• Refer to INSTALLING THE LAMBDA OXYGEN SENSOR FOR THE CYLINDERS 5 TO 8 .
• Refer to INSTALLING THE CROSSING OF THE TRANSMISSION WIRING HARNESS .
• Refer to INSTALLING ALTERNATOR .
• Refer to INSTALLING THE COOLANT EXPANSION TANK FOR THE LOW-TEMPERATURE .
• Refer to INSTALLING ENGINE VENTILATION LINE OF CYLINDER BANK 1 .
• Refer to FASTENING THE ENGINE VENTILATION LINE OF CYLINDER BANK 1 .
• Refer to INSTALLING THE CLEAN AIR PIPE OF CYLINDER BANK 1 .
• Refer to INSTALLING THE CLEAN AIR PIPE OF CYLINDER BANK 2 .
• Refer to INSTALLING BRACKET FOR RIGHT INTAKE SILENCER .
• Refer to INSTALLING THE OXYGEN SENSOR MONITOR FOR CYLINDERS 1 TO 4 .
• Refer to INSTALLING RIGHT INTAKE SILENCER HOUSING .
• Refer to INSTALLING THE LEFT INTAKE SILENCER BRACKET .
• Refer to INSTALLING THE OXYGEN SENSOR MONITOR FOR CYLINDERS 5 TO 8 .
• Refer to FASTENING THE ACTIVATED-CHARCOAL FILTER LINE .
• Refer to INSTALLING THE ENGINE VENTILATION LINE OF CYLINDER BANK 2 .
• Refer to FASTENING THE ENGINE VENTILATION LINE OF CYLINDER BANK 2 .
• Refer to INSTALLING THE HEAT SHIELD OF THE CYLINDER HEAD COVER FOR CYLINDERS 5 TO 8 .
• Refer to INSTALLING THE HEAT SHIELD OF THE CRANKCASE VENTILATION OF CYLINDERS 1 TO 4 .
• Refer to INSTALLING THE RIGHT-HAND CHARGE AIR COOLER .
• Refer to SECURING THE FUEL SUPPLY LINE ON THE LEFT .
• Refer to INSTALLING IGNITION COIL ON CYLINDER 5 .
• Refer to INSTALLING THE LEFT-HAND CHARGE AIR COOLER .
• Refer to CLOSING THE LOW-TEMPERATURE COOLANT CIRCUIT .
• Refer to INSTALLING FRONT UNDERBODY PROTECTION .
• Refer to INSTALLING THE LOWER LEFT FRONT WHEEL ARCH COVER .
• Refer to INSTALLING DRIVE BELT .
• Refer to INSTALLING FAN COWL .
• Refer to INSTALLING THE RIGHT UNFILTERED-AIR DUCT .
• Refer to INSTALLING OIL FILLER NECK .
• Refer to INSTALLING RIGHT INTAKE SILENCER HOUSING .
• Refer to INSTALLING THE LEFT UNFILTERED-AIR DUCT .
• Refer to INSTALLING LEFT INTAKE SILENCER HOUSING .
• Refer to INSTALLING THE REAR TOP CROSS CONNECTION .
• Refer to INSTALLING THE FRONT-END STRUT .
• Refer to INSTALLING UPPER CROSS CONNECTION .
• Refer to INSTALLING ACOUSTIC COVER .
• Refer to INSTALLING THE COVER IN THE ENGINE COMPARTMENT AT TOP LEFT and INSTALLING THE COVER IN THE ENGINE COMPARTMENT ON THE TOP RIGHT .
• Refer to RECONNECTING ALL BATTERY GROUND LEADS .
• Refer to FILLING THE LOW-TEMPERATURE COOLING SYSTEM WITH THE VACUUM FILLING EQUIPMENT .
• Refer to VENTING THE LOW-TEMPERATURE COOLING SYSTEM .
• Refer to ATTACHING BOTH EXHAUST MANIFOLDS .