18 00 020 Removing and installing/replacing complete exhaust system (N52/N52K/N51)

WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 2008 BMW 328xi, 2008 BMW 328i, 2008 BMW 323i, 2007 BMW 328xi, and 2007 BMW 328i. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

31 2 220

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

IMPORTANT: Removal of the exhaust system must be carried out with the assistance of a second person.

Support exhaust system with jack and special tool 31 2 220 and secure against falling out.

Fig 1: Identifying Special Tool (31 2 220)

Courtesy of BMW OF NORTH AMERICA, INC.

Unscrew nuts.

Installation:

Replace self-locking nuts.

Replace seal.

Tightening torque 18 20 1AZ. Refer to 18 20 EXHAUST SYSTEM SUSPENSION .

Fig 2: Identifying Exhaust Manifold Self-Locking Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

Release bolt and remove bracket (1).

Installation:

Tightening torque 18 20 2AZ. Refer to 18 20 EXHAUST SYSTEM SUSPENSION .

Fig 3: Identifying Muffler Bracket Bolt

Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten screw connection.

Installation:

Tightening torque 18 20 3AZ. Refer to 18 20 EXHAUST SYSTEM SUSPENSION .

Fig 4: Identifying Bracket To Rear Differential Screw

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Unfasten nut.

Installation:

Tightening torque 18 20 4AZ. Refer to 18 20 EXHAUST SYSTEM SUSPENSION .

Fig 5: Identifying Rear Muffler Bracket Nut

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Release screw on right bracket.

Installation:

Tightening torque 18 20 5AZ. Refer to 18 20 EXHAUST SYSTEM SUSPENSION .

Fig 6: Identifying Rear Muffler To Body Screw

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Release bolts along line and remove reinforcement plate (1).

Lower exhaust system and remove.

Fig 7: Identifying Reinforcement Plate

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Installation:

Check exhaust system for leaks.