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18 10 031 Replacing rear muffler (M57T2)

WARNING: This page is about a different car, the 2013 BMW X5, 2012 BMW X5, and 2011 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required: 

WARNING: Scalding hazard!
These tasks should only be carried out on an exhaust system that has cooled down.

Support exhaust system with special tool 31 2 220 .

Fig 1: Supporting Exhaust System Using Tool
G04742070Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: If the cutting line is not marked by a punch mark in the pipe, determine the cutting line by means of the pipe length on the new rear silencer (4).

Carry over cutting line to faulty rear silencer (4) and mark out.

Fig 2: Identifying Rear Silencer To Cutting Line Mark
G06913674Courtesy of BMW OF NORTH AMERICA, INC.

Cut exhaust pipe at marked point with special tool 00 2 210 and deburr with a standard tool.

Fig 3: Identifying Special Tool 00 2 210
G04794082Courtesy of BMW OF NORTH AMERICA, INC.

Secure exhaust system against falling off.

Release bolt and remove bracket (1).

Tightening torque: 18 20 6AZ .

Fig 4: Locating Bolt Of Bracket
G06211017Courtesy of BMW OF NORTH AMERICA, INC.

Release screws and remove holder (1).

Tightening torque: 18 20 7AZ .

NOTE: Refer to Fig 5, illustration shows the left side. The procedure is identical for the right side.

Lower and remove rear muffler with assistance of a second person.

Fig 5: Locating Holder Screws
G06913660Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Connect center muffler to rear muffler by means of clamp and align.

Center clamp and tighten down.

Fig 6: Identifying Center Clamp
G04794086Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Align both tail pipes (1) of rear muffler in each case centrally to openings in rear apron.

Fig 7: Identifying Tail Pipes
G04794079Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Check rubber mount for damage, replace if necessary.
Check exhaust system for leaks.