What causes a knocking noise in an Audi A2?

I have noticed a knocking noise coming from my Audi A2 while driving. What could be causing this and how can I fix it?

One possible cause of a knocking noise in an Audi A2 could be an issue with the engine oil. It is important to regularly check and change the oil to prevent any engine problems.

Another possible cause could be a damaged or worn out engine mount. This can lead to excessive engine vibrations and noise. It is recommended to have the engine mount checked and replaced if necessary.

In some cases, a knocking noise in an Audi A2 could be due to a faulty fuel injector. This can cause uneven engine firing and lead to noise. It is best to have the fuel injectors inspected by a mechanic.