Front Exhaust Pipe With Catalytic Converter

Special tools and workshop equipment required 

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

Removing 

-- Disconnect the harness connector for the heated oxygen sensor -G39- -arrow- and free up the wiring harness.

-- From the top, remove the front exhaust pipe with catalytic converter nuts -arrows- from the turbocharger.

-- Remove the noise insulation. Refer to Description and Operation .

-- Remove nuts accessible from below for the front exhaust pipe with catalytic converter to turbocharger.

-- Remove the nuts -arrows- and slightly pull the underbody cover downward.

With Engine Code CBFA:

-- Unclip the wires -arrows-, remove the bracket -2- and disconnect the electrical connectors -1 and 3-.

With Engine Code CCTA:

-- Disconnect the electrical connector -arrow- on the underbody.

-- Remove the electrical connector out of the bracket and free up the electrical wire to the oxygen sensor.

Continuation for all Engine Codes:

-- Remove exhaust system suspended mount bolts -arrows-.

-- Remove the front tunnel bridge nuts -arrows- from the underbody.

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

-- Remove the front exhaust pipe with catalytic converter.

Installing 

• Tightening specifications, refer to EXHAUST SYSTEM OVERVIEW .
• Tunnel bridge to underbody nut: 20 Nm

Install in reverse order of removal. When doing this note the following:

• Replace gaskets and self-locking nuts.
• Lubricate the stud bolts on the exhaust manifold with hot bolt paste.
• Align the exhaust system free of stress. Refer to EXHAUST SYSTEM, ALIGNING .
• Check the exhaust system for leaks. Refer to EXHAUST SYSTEM, CHECKING FOR LEAKS .