Exhaust System: Service and Repair

18 00 020 Removing and installing complete exhaust system (N63)

Special tools required:





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.





Necessary preliminary work:
^ E70 only:

Remove rear bumper trim.





Support exhaust system with special tool 31 2 220.





Note:
Texts refer to and illustrations show the left side. The procedure is identical for the right intake duct.

Unscrew nuts (1).

Replace self-locking nuts.

Tightening torque 18 31 1AZ.





Release screw (1).

Tightening torque 18 20 1AZ.





Release screws (1).

Tightening torque 18 20 2AZ.





Note:
Texts refer to and illustrations show the left side. The procedure is identical for the right intake duct.

Release screw (1).

Tightening torque 18 20 3AZ.





Note:
Texts refer to and illustrations show the left side. The procedure is identical for the right intake duct.

Release screws (1).

Tightening torque 18 20 4AZ.

Remove earth strap.

Detach hose (2) from vacuum unit and release at tube (3).

Lower and remove exhaust system with assistance of a second person.





Installation Note:
Center both exhaust tailpipes (1) in line with recesses in rear apron.





Installation Note:
Check rubber mount for damage.

If necessary, replace damaged rubber mounts.

Check exhaust system for leak tightness.