What causes my Vauxhall Astra to make rattling noises during acceleration?

I've noticed that my Vauxhall Astra makes a loud rattling noise when I accelerate, but it seems to go away when I reach a steady speed. What could be causing this and how can I fix it?

This could be due to a loose exhaust heat shield. Make sure to have it checked and tightened by a mechanic.

It could also be caused by a failing engine mount. Have a professional inspect it and replace if necessary.

Check the condition of your spark plugs and ignition coils. Replacing them may solve the rattling noise.