18 00 020 Removing and installing complete exhaust system (N55)

Special tools required: 

• 31 2 220

Support exhaust system with special tool 31 2 220.

Fig 1: Supporting Exhaust System Using Special Tool 31 2 220

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Necessary preliminary tasks 

• Remove TENSION STRUTS

Release clamp (1).

Tightening torque 18 31 1AZ .

Fig 2: Identifying Clamp

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Release screws (1).

Remove heat shield (2).

Fig 3: Identifying Heat Shield With Screws

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Release screws (1).

Tightening torque 18 31 4AZ .

Only when independent heating is fitted: release screw (2) on metering pump.

Tightening torque 18 31 5AZ .

Release screws (3) on underbody panels.

Remove reinforcement plate (4).

Fig 4: Identifying Reinforcement Plate And Screws

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

Slacken nut (1).

Tightening torque 18 20 3AZ .

Fig 5: Identifying Nut

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

Slacken nuts (1).

Tightening torque 18 31 3AZ .

Fig 6: Identifying Nuts

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Slacken nut (1).

Tightening torque 18 31 3AZ .

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

Fig 7: Identifying Nut

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Installation: 

Check rubber mount for damage.

If necessary, replace damaged rubber mounts.

Check exhaust system for leaks.