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Exhaust System: Service and Repair



18 00 020 Removing And Installing Complete Exhaust System (N52T)

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:
- F11 only:
Remove left trailing link.







Support exhaust system with special tool 31 2 220.







Unscrew nuts (1).
Tightening torque 18 31 1AZ.
Remove connecting plate (2).
Replace self-locking nut.
Replace gaskets.







Release screws (1) and (2).
Tightening torque 18 20 1AZ.







Picture shows the left side, the procedure for the right side is identical.
Slacken nut (1).
Tightening torque 18 20 3AZ.







Release screws (1).
Tightening torque 18 31 2AZ.
Only if auxiliary heating fitted. Release screw (2) on metering pump.
Tightening torque 18 31 3AZ.
Release screws (3) on underbody panelling.
Remove reinforcement plate (4).







Slacken nut (1).
Tightening torque 18 20 4AZ.







Pull off vacuum hose (1).
Slacken nut (2).
Tightening torque 18 20 5AZ.
Lower and remove exhaust system with assistance of a second person.







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







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