Remove catalytic converter

Preliminary work 

• Refer to REMOVING LEFT AND RIGHT WIPER ARM .
• Refer to REMOVING REAR HOOD SEAL .
• Refer to REMOVING LEFT WINDSHIELD PANEL COVER .
• Refer to REMOVING RIGHT WINDSHIELD PANEL COVER .
• Refer to REMOVING BATTERY COVER .
• Refer to REMOVING THE SECOND BULKHEAD AT TOP .
• Refer to REMOVING THE ACOUSTIC COVER .
• Refer to REMOVING CLEAN AIR PIPE .
• Refer to REMOVING THE LAMBDA OXYGEN SENSOR .
• Refer to REMOVING THE OXYGEN SENSOR MONITOR .
• Refer to REMOVING THE FRONT UNDERBODY PROTECTION .
• Refer to REMOVING REAR UNDERBODY PROTECTION .
• Refer to REMOVING THE CONNECTING SUPPORT FROM THE TUNNEL AT FRONT AND REAR .
• Refer to REMOVING THE CROSS-MEMBER ON THE REAR AXLE .
• Refer to REMOVING COMPLETE EXHAUST SYSTEM .

If installed: Removing the differential pressure sensor with the pressure line 

• Unlock the detents (1) carefully.
• Guide out and remove the cover (2).

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• Unlock plug connection (1) and disconnect.
• Disconnect the pressure hose (2).
• Loosen screw (3).
• Feed out differential pressure sensor (4) and remove.

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• Version A 

  Release the union nut (1) with special tool 5 A19 557. 

  Feed the pressure hose (2) out of the holder (3) and remove.

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• Version B 

  Release the union nut (1) with special tool 5 A19 557. 

  Feed the pressure hose (2) out of the holder (3) and remove.

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• Feed rubber mount (1) out from catalytic converter and remove.
• Check rubber mount (1) for damage, replace if necessary.

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• Loosen V-band clamp (1).
• Loosen nuts (2).
• Feed out the catalytic converter (3) and remove it.

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