Front Exhaust Pipe With Catalytic Converter

WARNING: This page is about a different variant/trim than selected.

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

GWWA10-1663

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

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

GWWM26-0180

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

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

GWWM24-0444

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

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

GWWA26-0718

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

NOTE:

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

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

Fig 5: Identifying Nuts, Bolts & Front Exhaust Pipe

GWWM26-0173

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- 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

Component

Nm

Front exhaust pipe to exhaust manifold

Replace nuts

25 ⁽¹⁾

Suspended mount to subframe

25

Clamp

25

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