What are the most common issues with the Audi A4's engine performance?

I have noticed some unusual performance from my Audi A4's engine. Can you provide insight into common issues and how to fix them?

The Audi A4 has been known to experience issues with oil consumption. To avoid this, be sure to stick to the oil change schedule and use high-quality synthetic oil. Another issue is with the fuel pump, so make sure to use premium fuel and check for any leaks.