Front Exhaust Pipe with Catalytic Converter

Front Exhaust Pipe with Catalytic Converter

Special tools, testers and auxiliary items required

• Torque wrench 5-50 Nm (VAG 1331)

• hot bolt paste (G 052 118 A3)

Removing

- Remove the right underbody trim bolts/nuts - arrows - and trim.





With Engine Codes BGP, BTK and CBTA

- Unclip the wire - arrow -, remove the wire from the bracket - 1 - and disconnect the electrical connector - 2 - for the Oxygen Sensor (O2S) behind Three Way Catalytic Converter (TWC).





With Engine Codes BGQ and CBUA

- Unclip the wires - arrows -, remove the wire from the bracket - 2 - and disconnect the electrical connectors - 1 - for the O2S behind TWC and - 3 - for O2S - center TWC, Bank 1.





Continuation for All

- Loosen the bolts for the clamp - 1 -. The front crossmember must not be removed.





• The flex joint in the front exhaust pipe must not be bent more than 10 degrees, otherwise it may be damaged.

- Remove the nuts - 2 - for the front exhaust pipe to exhaust manifold and remove the bolts - 3 -.





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

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





* Coat stud bolts on exhaust manifold with hot bolt paste (G 052 118 A3).