Catalytic Converter: Service and Repair

Exhaust Pipe with Catalytic Converters

Removing

- Remove the engine cover with air filter. Refer to => [ Engine Cover with Air Filter ] Engine Cover With Air Filter.

- Disconnect the heated oxygen sensor connector - arrow - and free up the wire.






- Remove the driveshaft.

- Remove the exhaust pipe to turbocharger nuts - arrows -.






- Remove the nuts - arrows - and slightly pull the vehicle floor cover downward.






- Disconnect the oxygen sensor after three way catalytic converter connector - arrow - and free up the wire.






- Remove exhaust system suspended mount bolts - arrows -.






- Remove the front cross member nuts - arrows - and cross member.







Danger of causing damage to the coupling elements.

• Do not bend the coupling element in the front exhaust pipe more than 10°.

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

- Remove the exhaust pipe with the catalytic converter.

Installing

Install in reverse order of removal. Note the following:

• Coat the turbocharger stud bolts with hot bolt paste (G 052 112 A3).

• Replace gaskets and self-locking nuts.

• Install the exhaust system free of stress. Refer to => [ Exhaust System, Aligning ] Procedures.

Tightening Specifications