Exhaust Pipe: Service and Repair

Exhaust Pipe with Catalytic Converter

Special tools, testers and auxiliary items required

• Torque Wrench (5-50 Nm) (V.A.G 1331)

• Hot Bolt Paste (G 052 118 A3)

Removing

- Remove the right underbody panel (if equipped) - arrows -.






Engine Code CBTA:

- Unclip the wire - arrow -, pull off the bracket - 1 - and disconnect the harness connector - 2 - for the oxygen sensor after three way catalytic converter (G130).






Engine Code CBUA:

- Unclip the wires - arrows -, pull off the bracket - 2 - and disconnect the connector - 1 - for the oxygen sensor after three way catalytic converter and connector - 3 - for oxygen sensor in bank 1 in center three way catalytic converter (G465).






Continuation for All Vehicles:

- Loosen the nuts on the clamp - 1 -. The tunnel bridge for the vehicle floor must not be removed.






Danger of causing damage to the flex coupling element:

• Do not bend the flex coupling element more than 10°.

• Do not stretch the flex coupling element.

• Do not damage the wire mesh on the flex coupling element.

- Remove the exhaust pipe with catalytic converter to exhaust manifold nuts - 2 - and the suspended mount bolts - 3 -.






- Remove the exhaust pipe with catalytic converter - 1 - from the exhaust manifold, slide toward the front at the sides and guide under the front cross member.

Installing

Installation is performed in the reverse order of removal. When doing this note the following:

• Replace gaskets and self-locking nuts.

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

Tightening Specifications






• 1 Coat the stud bolts on the exhaust manifold with hot bolt paste (G 052 118 A3)