18 10 031 Replacing rear muffler (N51)
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2013 BMW 128i, 2012 BMW 128i, 2011 BMW 128i, 2010 BMW 128i, and 2009 BMW 128i. However, it is still accessible from the selected car via links, so may be relevant.
Special tools required:
- 00 2 210
- 31 2 220
See MAINTENANCE AND GENERAL INFORMATION - SPECIAL TOOLS .
See FRONT AXLE - SPECIAL TOOLS .
WARNING:
Scalding hazard!
Only perform these tasks on an engine that has cooled down.
Only perform these tasks on an engine that has cooled down.
Support rear muffler with special tool 31 2 220.
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.
Cut exhaust pipe at marked point with special tool 00 2 210 and deburr.
Unfasten nut.
Tightening torque 18 20 4AZ, see 18 20 EXHAUST SYSTEM SUSPENSION .
Release screw on right bracket.
Tightening torque 18 20 5AZ, see 18 20 EXHAUST SYSTEM SUSPENSION .
Installation:
Connect front muffler to rear muffler by means of clamp and align.
Centre clamp and tighten down.
Tightening torque 18 20 8AZ, see 18 20 EXHAUST SYSTEM SUSPENSION .
NOTE:
Check exhaust system for leaks.