Mercedes Forum - Mercedes Benz Enthusiast Forums

Mercedes Forum - Mercedes Benz Enthusiast Forums (https://mercedesforum.com/forum/)

- Mercedes M Class (https://mercedesforum.com/forum/mercedes-m-class-16/)

- - Error codes and their meaning (https://mercedesforum.com/forum/mercedes-m-class-16/error-codes-their-meaning-31145/)

bballfreak

08-07-2008 12:15 AM

Error codes and their meaning

I have a 2000 ML55 and had a check engine light.
I have a OBDII code reader and it shows the following codes
P0422 and P0432.
As per the MB code,
P0422 Main Catalyst Efficiency Below Threshold (Bank 1)
P0432 Main Catalyst Efficiency Below Threshold (Bank 2)
what does this mean?
any help would be appreciated.
Thanks

All times are GMT -5. The time now is 02:00 AM.