New Beetle L4-2.0L (BEV) (2004)
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Catalytic Converter: All Technical Service Bulletins
Emissions - Converter Rattle/MIL/DTC P0420/P0422
26 11 01
March 25, 2011
2023049 Supersedes T.B. V261003 dated April 20, 2010 to include the 2006 Golf 2.0L (BEV).
Vehicle Information
Condition
MIL is ON and/or Catalytic Converter is Raffling
MIL is ON, DTC P0420 and/or DTC P0422 is stored and/or catalytic converter rattling.
The expansion mat in the original part can erode prematurely, causing the converter to rattle and/or MIL ON. An improved part is available.
Repair identified after production was completed.
The above condition MAY be covered by the Catalytic Converter Limited Extended Warranty, see Warranty Policies and Procedure Manual.
Prior to replacing a catalytic converter under the Catalytic Converter Limited Extended Warranty, perform the following procedure:
^
Check the engine oil level.
Oil level MUST be correct.
If overfilled,
^
Oil level should be adjusted to proper level prior to continuing.
Adjusting oil level is NOT covered by Warranty.
^
Inspect the catalytic converter for a broken or deteriorated monolith (honeycombed interior element).
Is Catalytic Converter Rattling?
^
No: Go to interrogating DTC memory.
^
Yes: Visually inspect vehicle underbody to ensure that converter was not damaged from outside influence such as dented converter housing, etc.
Are signs of external damage to catalytic converter present?
