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Emissions - Catalytic Converter Replacement Information|Page 4989 > < Emissions - Possible MIL ON/Cat Converter DTC's Set|Page 4983
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Catalytic Converter: All Technical Service Bulletins
Emissions - Catalytic Converter Replacement Information

26 07 08 

Nov. 15, 2007 

2016695

Vehicle Information

Condition

Catalytic Converter, Replacement, Rear Oxygen Sensors Not Required

Catalytic Converter (service part) no longer supports rear oxygen sensors.

Technical Background

Early build MY06 Passat were produced with three oxygen sensors per catalytic converter. Only four oxygen sensors (two per converter) are used for
OBD. Rear oxygen sensors -arrow- are not monitored by the ECM.

When replacing catalytic converter(s), the unused body harness connector(s) must be weather sealed for harness protection.

Production Solution

Vehicles produced with four oxygen sensors beginning with the following VINs:

^

3C_6P154907

^

3C_6E186617

Service

Tip:

This repair requires that the rear oxygen sensor connectors be removed from the oxygen sensors prior to catalytic converter disposal. The connectors will
be modified to act as "covers" and "fasteners" for the body harness connectors.

Emissions - Catalytic Converter Replacement Information|Page 4989 > < Emissions - Possible MIL ON/Cat Converter DTC's Set|Page 4983