Why is my Audi A3's engine running rough?

I recently noticed that my Audi A3's engine is running rough and is emitting strange noises. What could be causing this and how can I fix it?

The most likely cause of this issue is a problem with the spark plugs or ignition coils. You should take your car to a certified mechanic to have them checked and replaced if necessary.

Another possible cause is a clogged fuel filter. If your fuel filter has not been changed in a while, it may be restricting fuel flow and causing your engine to run rough. You should have it replaced and see if that improves the performance of your engine.

It's also possible that there is an issue with your car's air intake system. If there is a leak or blockage in the air filter or hoses, it can affect the engine's performance. Have a mechanic inspect your air intake system to make sure everything is functioning properly.