18 40 010 Removing and installing/renewing left exhaust manifold (N63)

WARNING: Risk of burning!
Only perform this repair work on an engine that has cooled down.

Necessary preliminary tasks:

Release screws (1).

Tightening torque 18 31 4AZ .

Fig 1: Identifying Left Exhaust Manifold Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Tightening torque 18 31 4AZ .

Remove heat shield (2).

Fig 2: Identifying Heat Shield With Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Tightening torque 18 31 4AZ .

Remove heat shield (2) at rear left.

Fig 3: Identifying Heat Shield Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Unscrew nuts.

Replace nuts.

Tightening torque 18 31 2AZ .

Remove exhaust manifold (1).

Installation note:

Replace gasket (2).

Reinstall securing strip.

Fig 4: Identifying Rear Left Heat Shield With Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Replace gaskets (1).

Seal beads faces the exhaust manifold.

Coat threads with copper paste.

Fig 5: Identifying Exhaust Manifold Gaskets

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Check exhaust system for leaks.