18 40 040 Removing and installing/replacing exhaust manifold (N14)

WARNING: This page is about a different variant/trim than selected.

Special tools required:

17 2 051 . See COOLING SYSTEM - SPECIAL TOOLS -- S CLUBMAN .

WARNING: Scalding hazard!
These tasks should only be carried out on an exhaust system that has cooled down.

Necessary preliminary tasks:

Drain coolant
Remove coolant expansion tank . See 17 11 100 REMOVING AND INSTALLING/REPLACING COOLANT EXPANSION TANK (N12, N14) .
Remove catalytic exhaust-gas converter .

Release clamp and detach charge-air duct (1).

Release clamps (2) and detach air intake hose (3).

Remove clean air pipe (4).

Fig 1: Identifying Charge-Air Duct, Clamps And Air Intake Hose

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Release spring strap with special tool 17 2 051 and detach coolant hose (1).

Fig 2: Releasing Spring Strap With Special Tool 17 2 051

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Release screws and detach lines (1).

Installation:

Replace seals.

Tightening torque 11 65 8AZ .

Fig 3: Identifying Lines (1)

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Pull off hose (1).

Unlock connector (2) and remove.

Unscrew bolt (3).

Release spring strap with special tool 17 2 051. Detach line (4) and remove.

Fig 4: Releasing Spring Strap With Special Tool 17 2 051

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Release screw (1) and detach line (2).

Installation:

Replace seals.

Tightening torque 11 65 4AZ

Release screw (3) and detach line (4).

Installation:

Replace sealing ring.

Tightening torque 11 65 5AZ .

Fig 5: Identifying Line Screws

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Release screw (1).

Tightening torque 11 65 3AZ .

Release screw (2) and remove holder (3).

Tightening torque 11 65 6AZ .

Installation note: When fitting engine oil pipe and banjo bolt, install thermal protection (1). Wrap thermal protection around engine oil pipe. Check banjo bolt (2) and engine oil pipe for blockage. Replace blocked banjo bolt and engine oil pipe.

Fig 6: Identifying Heat Shield And Banjo Bolt

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Installation note: Make sure that thermal protection clamp (1) engages correctly.

Fig 7: Identifying Heat Shield Clamp

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Release screw (1). Tightening torque 11 65 3AZ . Release screw (2) and remove holder (3). Tightening torque 11 65 6AZ .

Fig 8: Identifying Holder Screw

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Release nuts and remove exhaust manifold (1).

Installation:

Replace seal and nuts.
Clean sealing surfaces.
Apply a thin coat of copper paste to thread.
Tightening torque 25 N.m

Fig 9: Locating Exhaust Manifold Nuts

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Release nuts and remove turbocharger (1) from exhaust manifold (2).

Installation:

Replace seal and nuts.
Clean sealing surfaces.
Apply a thin coat of copper paste to thread.
Tightening torque 11 65 1AZ .

Fig 10: Locating Turbocharger Nuts

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NOTE: Assemble engine.
Top up coolant.
Check engine oil level.
Clear DME fault memory.