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P0420 on the 2016 Volkswagen Beetle

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

Bulletins for this model year that name P0420
On-car-analysis-2019-04-08. Service bulletin. MIL-on P0420 and/or P0430 in the ECM
On-car-analysis-2019-04-08. Service bulletin. MIL-on P0420 and/or P0430 in the ECM
On-car-analysis-2019-04-08. Service bulletin. MIL-on P0420 and/or P0430 in the ECM
On-car-analysis-2019-04-08. Service bulletin. MIL-on P0420 and/or P0430 in the ECM
On-car-analysis-2019-04-08. Service bulletin. MIL-on P0420 and/or P0430 in the ECM
On-car-analysis-2019-04-01. Service bulletin. MIL-on P0420 and/or P0430 in the ECM
On-car-analysis-2019-04-01. Service bulletin. MIL-on P0420 and/or P0430 in the ECM
On-car-analysis-2019-04-01. Service bulletin. MIL-on P0420 and/or P0430 in the ECM
On-car-analysis-2019-04-01. Service bulletin. MIL-on P0420 and/or P0430 in the ECM
On-car-analysis-2019-04-01. Service bulletin. MIL-on P0420 and/or P0430 in the ECM

13 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.