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Home >> Mini >> 2010 >> Cooper S, 2D Hatchback, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1163 (Exhaust System - Repair - E92/E93) >> Mufflers >> 18 10 031 Replacing rear muffler (N51) >> Notes

18 10 031 Replacing rear muffler (N51): Notes

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WARNING: Scalding hazard!
Only perform these tasks on an engine that has cooled down.

Support rear muffler with special tool 31 2 220 .

Fig 1: Supporting Rear Muffler Using Special Tool 31 2 220
G04774161Courtesy 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 muffler (4).
Carry over cutting line to faulty rear muffler (4) and mark out.
Fig 2: Identifying Rear Muffler Line Cutting Position
G05758989Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 3: Cutting Exhaust Pipe At Marked Point Using Special Tool (00 2 210)
G04742078Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten nut.

Tightening torque: see 4AZ in 18 20 EXHAUST SYSTEM SUSPENSION .

Fig 4: Locating Nut
G05758984Courtesy of BMW OF NORTH AMERICA, INC.

Release screw on right bracket.

Tightening torque: see 5AZ in 18 20 EXHAUST SYSTEM SUSPENSION .

Fig 5: Locating Bracket Screw
G05476212Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

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

Centre clamp and tighten down.

Tightening torque: see 8AZ in 18 20 EXHAUST SYSTEM SUSPENSION .

Fig 6: Identifying Centre Clamps
G04742081Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Check exhaust system for leaks.
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