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How to troubleshoot a Catalytic Converter on an Audi A4?

I've been noticing some strange sounds coming from my Audi A4 and I suspect it may be an issue with the catalytic converter. Can anyone provide some guidance on how to troubleshoot and potentially fix this issue?

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The catalytic converter is a crucial component of your Audi's exhaust system, responsible for reducing harmful emissions. If you're experiencing any unusual noises or a decrease in engine performance, it's best to get it checked out by a professional mechanic. A clogged or damaged catalytic converter can affect your car's performance and lead to more serious issues if not addressed.

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