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

WARNING: This page is about a different car, the 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.

Special tools required:

31 2 220

See FRONT AXLE - SPECIAL TOOLS .

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

Support rear silencer with special tool 31 2 220 .

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

Fig 1: Supporting Exhaust System With Special Tools (31 2 220 And 00 2 030)

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Release screws.

Tightening torque, see 18 40 2AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .

Fig 2: Locating Self-Locking Nuts

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Release screws.

Tightening torque, see 18 40 3AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .

Fig 3: Locating Screws

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Release screws (1).

Remove reinforcement plate.

Installation:

Tightening torque 24 Nm .

Fig 4: Identifying Reinforcement Plate Screws

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Release screws on clamps.

Tightening torque, see 18 40 6AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .

Remove catalytic exhaust-gas converter with centre muffler.

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

Fig 5: Identifying Clamps Screws

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