Catalytic Converter: Service and Repair

Front Exhaust Pipe with Catalytic Converter

Removing






- Remove the cover for the air guide; to do this, disengage the side clips- arrows -.

- Unclip the lower air guide, to do this, disengage the clips - arrows -.






- Remove both the lower air guide and the air guide hose.

- Disconnect the connector - 1 - from the Mass Airflow (MAF) sensor (G70).






- Remove the air guide hose - 2 -.

- Remove the bolt - 4 - and the air filter housing.

• Ignore - 3 -.

- From above, remove the nuts - arrows - on the front exhaust pipe connection to the turbocharger.






All Wheel Drive (AWD)






- Mark position of flexible disc to bevel box flange for reinstallation.

- Remove the driveshaft flexible disc bolts - arrows - from the bevel box while counter holding at the triangular flange with a lever.









The shaft seal - arrow - in the driveshaft flange could be damaged.

• Press driveshaft horizontally as far back and to right side of vehicle as possible.

All Vehicles

- Remove nuts accessible from below from front exhaust pipe to the turbocharger connection.

- Disconnect the connector on the Heated Oxygen Sensor (HO2S).

- Remove the remaining nuts - arrows - for the front exhaust pipe/turbocharger from below.






- Remove exhaust system bracket - arrows -.






- Remove the front cross member for the vehicle floor - arrows -.







Risk of damaging decoupling elements.

• Do not bent decoupling elements in front exhaust pipe more than 10°.

- Loosen clamping sleeve - 1 - and push it rearward.

- Remove the catalytic converter with the front exhaust pipe.

Installing

• Tightening specifications, refer to => [ Exhaust System Overview ] Removal and Replacement.

Install in reverse order of removal. Note the following:

• Replace gaskets and self-locking nuts.

- Install exhaust system free of stress, refer to => [ Exhaust System, Aligning ] Procedures.