18 40 010 Removing and installing/renewing left exhaust manifold (N63 B40/B44 O 1)

WARNING: This page does not describe the selected car, but rather 50 other vehicles, including the 2016 BMW M5, 2016 BMW ActiveHybrid 5, 2016 BMW 550i xDrive, 2016 BMW 550i, and 2016 BMW 535i xDrive. However, it is still accessible from the selected car via links, so may be relevant.

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

Necessary preliminary tasks:

Remove left TURBOCHARGER .
Remove right TURBOCHARGER .
Remove ALTERNATOR

Release screws (1).

Tightening torque 11 65 6AZ

Fig 1: Identifying Left Exhaust Manifold Screws

G06178815

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Tightening torque 11 65 6AZ

Remove heat shield (2).

Fig 2: Identifying Heat Shield With Screws

G06178816

Courtesy of BMW OF NORTH AMERICA, INC.

Release nuts 1 to 8.

Remove exhaust manifold, bank 2.

Installation note:

Replace gasket.

Fig 3: Left Exhaust Manifold Nuts Tightening/Loosening Sequence (N63 B40/B44 O 1)

G09876688

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Replace gasket (1) for bank 2.

Fig 4: Identifying Gasket For Bank 2

G09876689

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Replace gasket on exhaust manifold .

Installation note:

Check locating apparatus on exhaust manifold.

Fig 5: Identifying Exhaust Manifold Gasket

G06178785

Courtesy of BMW OF NORTH AMERICA, INC.

Tighten all nuts in sequence (1 to 8).

Tightening torque: 11 62 2AZ .

Fig 6: Left Exhaust Manifold Nuts Tightening/Loosening Sequence (N63 B40/B44 O 1)

G09876691

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.