What Are Some Common Problems With Audi A3 Engines?

I recently purchased a second-hand Audi A3 and I've been experiencing some issues with the engine. I've noticed a strange noise and some loss of power. What could be causing these problems and how can I fix them?

The most common problem with Audi A3 engines is a faulty camshaft position sensor. This can cause the engine to make strange noises and affect its performance. I would recommend having a mechanic check and replace this sensor if necessary.