Front Exhaust Pipe With Catalytic Converter

Special Tools And Workshop Equipment Required 

• Torque Wrench (5-50 Nm) V.A.G 1331
• Hot Bolt Paste G 052 118 A3

Removing 

-- Remove the right underbody panel retainers -arrows- and panel, if equipped.

Fig 1: Identifying Right Vehicle Floor Cover

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Vehicles With Engine Codes BGP and CBTA: 

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

Fig 2: Identifying Harness Connector For Oxygen Sensor - Installation Position

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Vehicles With Engine Codes BGQ and CBUA: 

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

Fig 3: Identifying Oxygen Sensor (O2S) And Three Way Catalytic Converter (TWC) G130 Electrical Harness Connector

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Continuation For All Vehicles: 

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

Fig 4: Identifying Bolts To Loosen Double Clamp

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-- Remove the exhaust manifold to front exhaust pipe nuts -2- and the suspended mount bolts -3-.

Fig 5: Identifying Nuts, Bolts & Front Exhaust Pipe

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

Tightening Specifications