Why does my Audi A4 make a loud rattling noise when shifting gears?

I recently noticed that when shifting gears in my Audi A4, there is a loud rattling noise. It seems to happen mostly when shifting from first to second gear. Any ideas what could be causing this?

It is possible that your transmission fluid may need to be changed. If it has become dirty or too low, it can cause a rattling noise when shifting gears.

Another possibility could be worn out engine mounts. These can cause vibrations when shifting gears, resulting in a loud rattling noise.

Check the condition of your exhaust system, as a loose or damaged exhaust component can also cause a rattling noise when shifting gears.