How do you know if you have a bad catalytic converter?
Mercedes-Benz Q&AAsk Your Question
2002 Mercedes-Benz C240 Question: catalytic converter
Answer #1Bret Bodas from RepairPal Test Shop, April 13, 2010, 14:15Master
You will have a check engine light on, and possibly some driveability issues like lack of power, poor fuel mileage etc. Here is an important article about this issue, http://repairpal.com/catalytic-converters-dont-usually-die-theyre-killed
Answer #2Visitor, August 17, 2010, 18:32
My cat just went out on my truck- complete loss of power- could be mistaken for a tranny problem but the cat will "bog" your engine down.