Why is my Audi 80 experiencing engine knocking?

I have noticed that my Audi 80 makes a strange knocking noise when I am driving. What could be causing this issue and how can I fix it?

There could be several reasons why your Audi 80 is experiencing engine knocking. One possibility is that your spark plugs are worn out and need to be replaced. Another possibility is that your fuel injectors are dirty and need to be cleaned. If neither of these solutions work, you may need to have a mechanic take a look at your engine to determine the exact cause of the knocking.