How to troubleshoot a faulty start-up engine for an Audi 80?

I have been experiencing issues with the start-up engine of my Audi 80. It takes multiple attempts to get the car to ignite and start running. The issue seems to be getting worse over time. What could be causing this and how can I troubleshoot and fix it?

The most common cause for a faulty start-up engine in an Audi 80 is a weak or dying battery. Check the voltage of your battery and replace it if necessary. Also, make sure all connections to the battery are secure and free of corrosion.