What are common issues with the Audi A2's ABS system?

I've noticed my Audi A2's ABS light has been turning on and off randomly. Can you suggest any potential causes and solutions?

One common issue with the Audi A2's ABS system is a faulty wheel speed sensor. This can cause the ABS light to turn on and off sporadically. It's a relatively easy fix that a mechanic can diagnose and repair.

Another potential issue could be a malfunctioning ABS control module. This can also cause the ABS light to turn on and off unexpectedly. It's important to get this checked by a professional as it can affect the overall safety of your vehicle.

In some cases, a low battery voltage can also trigger the ABS light to turn on. Make sure to regularly check your battery's condition and replace it if necessary.