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 tasks:
- Remove trailing links
- Remove rear underbody protection







Support exhaust system with special tool 31 2 220.







Picture shows the left side, the procedure for the right side is identical.
Unscrew nuts (1).
Replace self-locking nuts.
Tightening torque 18 31 1AZ.







Unscrew nuts (1).
Tightening torque 18 20 1AZ.







Release screws (1).
Remove heat shield (2).







Release screws (1).
Tightening torque 18 20 6AZ.
Only when independent heating is fitted: release screw (2) on metering pump.
Tightening torque 18 20 7AZ.
Release screws (3) on underbody panelling.
Remove reinforcement plate (4).







Picture shows the left side, the procedure for the right side is identical.
Slacken nut (1).
Tightening torque 18 20 4AZ.







Picture shows the left side, the procedure for the right side is identical.
Unscrew nuts (1).
Tightening torque 18 20 5AZ.







Picture shows the left side, the procedure for the right side is identical.
Slacken nut (1).
Tightening torque 18 20 5AZ.
Detach hose (2) on vacuum unit.

Installation note:
Check vacuum hose (2) for damages.
Replace damaged section of vacuum line and protect it with a woven protective hose.

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







Installation note:
Check rubber mount for damage.
If necessary, replace damaged rubber mounts.
Check exhaust system for leak tightness.