How do I troubleshoot my Audi A6's start-stop system?

I have noticed that sometimes my Audi A6's start-stop system does not activate when I come to a stop. How can I troubleshoot this issue and potentially fix it myself?

The most common cause of start-stop system issues in Audi A6 models is a weak battery. Make sure your battery is fully charged and in good condition to ensure proper functioning of the system.

Another potential cause is a faulty starter motor. If your battery is in good condition, but the system still fails to activate, it may be a good idea to have your starter motor inspected and potentially replaced.

In some cases, the issue may be related to a malfunctioning sensor or faulty wiring. If you are comfortable with basic car maintenance, you can try checking and cleaning the sensors and wires connected to the start-stop system.