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How to Troubleshoot Error Code P0304 on an Audi A6?

I recently encountered an error code P0304 on my Audi A6 which indicates a cylinder 4 misfire. However, I'm not sure how to troubleshoot this issue. Any advice would be greatly appreciated.

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Start by checking for any vacuum leaks in the intake manifold or hoses. If that's not the issue, you can try replacing the spark plugs and ignition coils for cylinder 4. Remember to use OEM parts for optimal performance.

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