The Mégane II Owners' Club

Posted: **Fri Mar 11, 2011 6:32 pm**

Hi all,

Does anyone know what "0420df" means. It's a Renault specific code and can't find it on the Internet or in books. If any one knows this code or know any one that works for Renault that would it would be greatly appreciated.

Regards,

Arran

Posted: **Fri Mar 11, 2011 10:42 pm**

Catalytic converter operating fault.

Posted: **Sat Mar 12, 2011 1:19 pm**

as direstraits says cat inefficient , look up p0420

Posted: **Sun Mar 13, 2011 2:53 pm**

no problems with engine power or consumption?

Posted: **Mon Mar 28, 2011 11:05 pm**

no theres no problem with power or consumption. I got it reset but it cam back on so I checked over pencil coils which were fine. then checked air filter = filthy so I bashed it out and gave it a clean and the light dissapeared so I'm going to replace the filter on pay day.

The Mégane II Owners' Club

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