What is the best way to maintain the Audi A2's electronic system?

I've recently bought an Audi A2 and I'm wondering what methods can I use to keep its electronic system in good condition?

Regularly clean and check all button controls and switches to prevent any dirt build-up or damages. Remember to use electronics-safe cleaner or wipes to avoid any short circuits.

Make sure to check the fuses and replace any damaged ones immediately. Failing to do so can result in further damage to the electronic system.

Regularly use a diagnostic tool to check for any error codes and address any issues as soon as they arise. This will prevent major electronic failures in the long run.