How do I troubleshoot the lane departure warning system in my Audi A3?

I recently purchased a pre-owned Audi A3 and noticed that the lane departure warning system is not working. How can I troubleshoot this issue and fix it myself?

First, make sure that the lane departure warning system is activated in the vehicle's settings. If it is turned on and still not working, try cleaning the sensors located on the front of the car, behind the Audi rings logo. Sometimes dirt or debris can block the sensors and cause the system to malfunction.

Check the control module for any error codes related to the lane departure warning system. If there are any codes, try resetting the module by disconnecting the vehicle's battery for 10 minutes and then reconnecting it.