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Home >> BMW >> 2009 >> M3 2D Convertible, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 76 (Exhaust System - Repair -- E90) >> Exhaust System, Complete >> 18 32 040 Removing and installing/replacing catalytic exhaust-gas converter with center muffler (S65)

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

WARNING: This page is about a different variant/trim than selected.
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)
G04742070Courtesy of BMW OF NORTH AMERICA, INC.

Release screws.

Tightening torque 18 40 2AZ .

Fig 2: Locating Self Locking Nuts
G06203653Courtesy of BMW OF NORTH AMERICA, INC.

Release screws.

Tightening torque 18 40 3AZ .

Fig 3: Locating Screws
G06203654Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Remove reinforcement plate.

Installation: 

Tightening torque 51 61 7AZ .

Fig 4: Identifying Reinforcement Plate Mounting Screws
G06203655Courtesy of BMW OF NORTH AMERICA, INC.

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
G06203660Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Add final details to vehicle.
Check exhaust system for leaks.