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Home >> BMW >> 2009 >> 650i 2D Convertible, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1721 (Exhaust System - Repair) >> Mufflers >> 18 12 030 Removing and installing/replacing rear muffler (N54)

18 12 030 Removing and installing/replacing rear muffler (N54)

WARNING: This page is about a different car, the 2010 BMW 535i, 2009 BMW 535i, and 2008 BMW 535i. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required: 

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

Support center muffler with special tool 31 2 220. 

Fig 1: Supporting Centre Muffler With Special Tool 31 2 220
G05502268Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: The cutting line for the rear muffler is designated by a notch in the pipe.
Fig 2: Identifying Cutting Lines On Pipe
G05502269Courtesy of BMW OF NORTH AMERICA, INC.

Cut rear muffler with special tool 00 2 210  at marked point and deburr.

Fig 3: Identifying Special Tool 00 2 210
G05502261Courtesy of BMW OF NORTH AMERICA, INC.

Detach hose from vacuum unit.

Unscrew mounting bolts.

Tightening torque 18 20 4AZ

Lower rear muffler and remove.

Fig 4: Locating Vacuum Unit Mounting Bolts
G05502262Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Connect rear muffler to center muffler by means of clamping sleeves.

Align rear muffler to rear apron.

Align clamp and tighten down.

Tightening torque 18 00 5AZ

Fig 5: Identifying Muffler And Clamping Sleeves
G05502263Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Check exhaust system for leaks.