What are the common causes of engine failure in an Audi 80?

I've been experiencing frequent engine issues in my Audi 80 and would like to know the most common causes that could be causing it.

One of the most common causes of engine failure in Audi 80s is the malfunction of the fuel pressure regulator. This usually happens due to a buildup of sediment and debris, resulting in a drop in engine performance and ultimately failure. My advice is to regularly clean and replace the regulator to avoid this issue.

Another cause of engine failure in Audi 80s is a faulty mass airflow sensor. This component is responsible for measuring the amount of air entering the engine and sending signals to the ECU for proper air/fuel mixture. When it fails, it can cause poor engine performance and eventually lead to failure. I recommend getting it checked and replaced if necessary.