18 12 046 Replacing front silencer (N55)
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Special tools required:
- 31 2 220
WARNING:
Risk of burning!
Only perform this repair work after engine has cooled down.
Danger of injury!
Removal of the exhaust system must be carried out with the assistance of a second person.
Only perform this repair work after engine has cooled down.
Danger of injury!
Removal of the exhaust system must be carried out with the assistance of a second person.
Support front silencer with special tool 31 2 220 or a suitable jack and protect from falling down.
NOTE:
If the separation point is not marked by a punch mark in the pipe, determine the separation point by means of the pipe length on the new front silencer.
Carry over separation point to faulty front silencer and mark.
Secure front silencer against falling out.
Cut through exhaust pipes at marked point with a suitable tool.
Carry over separation point to faulty front silencer and mark.
Secure front silencer against falling out.
Cut through exhaust pipes at marked point with a suitable tool.
Release clamp (1).
Tightening torque: 18 31 1AZ .
Slacken nut (1).
Tightening torque: 18 20 2AZ .
Lower and remove front silencer carefully with assistance of a second person.
Modify vibration absorber.
Installation note:
Fit front silencer and connect with clamp.
Center clamp and tighten down.
Tightening torque: 18 31 5AZ .
Installation note:
Check rubber mount for damage.
If necessary, replace damaged rubber mounts.
Check exhaust system for leak tightness.