18 20 010 Replacing Intermediate Pipes (S54)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2006 BMW M3, 2005 BMW M3, 2004 BMW M3, 2003 BMW M3, and 2002 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

For Special Tool identification, see Figure .

Special Tools Required:

31 2 220

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

Release nuts.

Remove air deflector (1).

Fig 1: Locating Air Deflector Retaining Nuts

G03118525

Courtesy of BMW OF NORTH AMERICA, INC.

Support intermediate pipes with jack and special tool 31 2 220 and secure against falling out.

Fig 2: View Of Jack And Special Tool

G03118526

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Remove reinforcement plate (2).

Release screws (3).

Reinforcement plate (4) remains connected by means of 2 rubber mounts to exhaust system.

Fig 3: Identifying Reinforcement Plate Retaining Screws

G03118527

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws and remove body reinforcement strut (1).

Fig 4: Removing Screws And Body Reinforcement Strut

G03118528

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw connection of flanges between rear muffler and intermediate pipes.

Installation:

Check seal, replace if necessary.

Fig 5: View Of Screw Connection Of Flanges

G03118529

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw connection of intermediate pipes at both catalytic converters.

Installation:

Check seals and replace if necessary.

Replace self-locking nuts and screws.

Coat thread with copper paste.

Fig 6: Identifying Screw Connection Of Intermediate Pipes

G03118530

Courtesy of BMW OF NORTH AMERICA, INC.