18 12 030 Removing and installing/replacing rear 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)

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws on clamps.

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

Fig 2: Identifying Clamps Screws

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Unfasten nut.

Tightening torque, see 18 40 4AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .

Fig 3: Identifying Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

Unscrew nuts.

Remove grounding straps.

Tightening torque, see 18 40 5AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .

Fig 4: Locating Grounding Strap

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1) on rear apron.

Unscrew nuts (2).

Tightening torque, see 18 40 5AZ in 18 40 EXHAUST MANIFOLD, EXHAUST SYSTEM .

Remove rear muffler with a second person helping.

Fig 5: Identifying Screws And Nut

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