How to troubleshoot faulty ignition system on Audi A7?

I recently started having issues with my Audi A7's ignition system where the car doesn't start or stalls while driving. What could be the cause of this problem and how can I fix it?

First, check the battery and make sure it's fully charged. If it's not, the problem could most likely be a faulty alternator. If the battery is fine, check the spark plugs and ignition coils. These are common causes of ignition failures in Audi A7s. Make sure they are clean and in good condition. If not, replace them.

Another possible cause could be a faulty starter. It's responsible for starting the car's engine, so if it's malfunctioning, the car won't start. Take your car to a mechanic and have them test the starter to see if it needs to be replaced.