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

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.

Necessary preliminary tasks:

F12 only:
Remove TRAILING LINKS .

Support exhaust system with special tool 31 2 220.

Fig 1: Supporting Exhaust System

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Version 1:

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 .

Fig 2: Identifying Exhaust System Nuts

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Version 2:

Picture shows the right side, the procedure for the left side is identical.

Release clamp (1).

Tightening torque 18 31 1AZ .

Fig 3: Identifying Exhaust System Clamp

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Picture shows the left side, the procedure for the right side is identical.

Slacken nut (1).

Tightening torque 18 20 1AZ .

Fig 4: Identifying Nut

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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).

Fig 5: Identifying Reinforcement Plate, Underbody Panelling And Metering Pump Screw

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Picture shows the left side, the procedure for the right side is identical.

Slacken nut (1).

Tightening torque 18 20 4AZ .

Fig 6: Identifying Nut

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Picture shows the left side, the procedure for the right side is identical.

Unscrew nuts (1).

Tightening torque 18 20 5AZ .

Fig 7: Identifying Nuts

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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.

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

Fig 8: Identifying Hose And Nut

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Installation note:

Check rubber mount for damage.

If necessary, replace damaged rubber mounts.

Check exhaust system for leak tightness.