Exhaust System: Service and Repair

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

Special tools required:





Warning!
High-voltage system - danger to life!

Warning!
The following points must be strictly observed prior to starting work:

^ Observe safety instructions for handling with hybrid vehicles





Warning!
Scalding hazard!
Only perform this work after engine has cooled down.
Risk of injury!
Removal of the exhaust system must be carried out with the assistance of a second person.





Necessary preliminary tasks:
^ 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 side.

Unscrew nuts (1).

Replace self-locking nuts.

Tightening torque 18 31 1AZ.





Release screws (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 side.

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 side.

Release screws (1).

Tightening torque 18 20 4AZ.

Remove grounding strap.

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





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

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





Installation:
Check rubber mount for damage.

If necessary, replace damaged rubber mounts.

Check exhaust system for leaks.