1800020 Removing and installing/replacing complete exhaust system (N52/N52K/N51): Notes

WARNING: This page is about a different car, the 2011 BMW 328i, 2010 BMW 328i, and 2009 BMW 328i. However, it is still accessible from the selected car via links, so may be relevant.

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.

Necessary preliminary tasks:

E91/E92/E93/E82/E88 only: Remove tension strut on rear axle.

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

Fig 1: Supporting Exhaust System With Jack Using Special Tool 31 2 220

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Unscrew nuts.

Installation:

Replace self-locking nuts.

Replace seal.

Tightening torque 18 20 1AZ .

Fig 2: Locating Self-Locking Nuts

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Release bolt and remove bracket (1).

Installation:

Tightening torque 18 20 2AZ .

Fig 3: Locating Bracket Bolt

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Unfasten screw connection.

Installation:

Tightening torque 18 20 3AZ .

Fig 4: Locating Bracket Screw

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Unfasten nut.

Installation:

Tightening torque 18 20 4AZ .

Fig 5: Locating Nut

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Release screw on right bracket.

Installation:

Tightening torque 18 20 5AZ .

Fig 6: Locating Bracket 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.