What is the most common cause of engine failure in Audi A4?

I recently bought an Audi A4 and I want to make sure I prevent any potential problems. I am curious what the most common cause of engine failure is for this car and how can I avoid it? Thanks in advance.

The most common cause of engine failure in Audi A4 is due to a lack of proper maintenance and oil changes. It is important to follow the recommended maintenance schedule and use high-quality oil to ensure your engine stays in good condition.