Question about 1984 Mercedes-Benz Mercedes Benz 300 Class

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Can I remove the cat coverter without harming the engine function

Cat converter in 1985 380SE has failed. This is an antique car in good shape and is only occasionally used. Can I remove the converter and fit a pipe in to replace it without harming the engine or effecting the engines function?

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  • yadayada
    yadayada May 11, 2010

    U will affect the air I breath and my children and this is aginst the law, 85 is not an antique.

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The fine print about catalytic converters is that they are required in many municipalities. Some places do not require them. If you are in a place which doesn't, you can fit a piece of exhaust pipe, known as a "test pipe,"where the catalytic converter normally goes. If you do this, make sure that any sensors in that part of the exhaust stay in the exhaust, as the engine needs them to run properly. Deleting the converter will reduce the restriction in the exhaust, which may improve fuel mileage, or may not, but the warning with that is that the absence of the cat will make the exhaust more percussive for the mufflers downstream, which could cause them to wear out more quickly. Short answer is: check your local laws on exhaust modifications, and be ready for a slightly louder (slightly) when you remove it. if you replace it, there is no cheap way to do it, because there are moderately exotic metals inside the cat, making it more expensive to buy, although it's easy to replace.

Posted on May 30, 2009

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You can but i wouldnt recommended it , because its an older model car, they have to be fitted by law due to pollution and noise regulations, they are a good thing but when they fail, then they are expensive.

Regards jonno

Posted on Apr 21, 2009

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