Why does my Audi 80's engine sputter when I accelerate?

I recently purchased a used Audi 80 and have noticed that the engine seems to sputter or hesitate when I accelerate. It's especially noticeable when I am going uphill or when trying to pass other cars on the highway. What could be causing this issue and how can I fix it?

It's possible that your spark plugs are worn out, causing misfires in the engine. You should have them checked and replaced if necessary.

Another potential issue could be a clogged fuel filter, which can cause a decrease in engine power. Have a mechanic inspect and replace the fuel filter if needed.