18 32 040 Removing and installing/replacing catalytic exhaust-gas converter with center muffler (S65)

WARNING: This page is about a different car, the 2011 BMW M3, 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Scalding hazard!
Only perform these tasks after exhaust system has cooled down.

Support rear silencer with special tool 31 2 220 SUPPORT .

NOTE: Description of one side of two-flow exhaust system.
The procedure is identical on both sides.

Fig 1: Supporting Exhaust System Using Special Tool (31 2 220)

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Release screws.

Tightening torque 18 40 2AZ .

Fig 2: Locating Self Locking Nuts

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Release screws.

Tightening torque 18 40 3AZ .

Fig 3: Locating Screws

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Release screws (1).

Remove reinforcement plate.

Installation:

Tightening torque 51 61 7AZ .

Fig 4: Identifying Reinforcement Plate Mounting Screws

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Release screws on clamps.

Tightening torque 18 40 6AZ .

Remove catalytic exhaust-gas converter with center muffler.

Remove catalytic exhaust-gas converter with a second person helping.

Fig 5: Identifying Screws On Clamps

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NOTE: Add final details to vehicle.
Check exhaust system for leaks.