18 40 020 Removing And Installing/Replacing Right Exhaust Manifold (N63)

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WARNING: Scalding hazard!
Only perform these tasks on an engine that has cooled down.

Necessary preliminary tasks:

Remove left turbocharger . See 11 65 030 REMOVING AND INSTALLING/REPLACING EXHAUST TURBOCHARGER, LEFT, CYLINDERS 5-8 (N63) .
Remove right turbocharger . See 11 65 025 REMOVING AND INSTALLING/REPLACING EXHAUST TURBOCHARGER, RIGHT, CYLINDERS 1-4 (N63) .
Remove alternator . See 12 31 020 REMOVING AND INSTALLING OR REPLACING ALTERNATOR (N63) .

Release screws (1).

Tightening torque. See 18 31 4AZ in 18 31 EXHAUST SYSTEM .

Fig 1: Identifying Right Exhaust Manifold And Screws

G06178815

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Tightening torque. See 18 31 4AZ in 18 31 EXHAUST SYSTEM .

Remove heat shield (2).

Fig 2: Identifying Heat Shield And Screws

G06178816

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Tightening torque. See 18 31 4AZ in 18 31 EXHAUST SYSTEM .

Remove heat shield (2) at rear right.

Fig 3: Identifying Heat Shield Screws Location

G06179311

Courtesy of BMW OF NORTH AMERICA, INC.

Unscrew nuts.

Replace nuts.

Tightening torque. See 18 31 3AZ in 18 31 EXHAUST SYSTEM .

Remove exhaust manifold (1).

Installation:

Replace seal (2).

Fig 4: Identifying Seal Location

G06179312

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Replace gaskets (1).

Seal beads faces the exhaust manifold.

Coat threads with copper paste.

Fig 5: Identifying Exhaust Manifold Gaskets

G06179313

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Check exhaust system for leaks.