How do I troubleshoot the Audi A6 lane departure warning system?

I've noticed that the lane departure warning system in my Audi A6 is not functioning properly. What steps can I take to troubleshoot and potentially fix this issue?

First, check to see if the lane departure warning system is turned on in the vehicle's settings. If it is on, try cleaning the front camera sensor as dirt or debris may be obstructing its view. If that doesn't work, there may be a faulty sensor or wiring issue that will need to be addressed by a certified mechanic.

One common reason for the lane departure warning system to not work is due to a low battery in the key fob. Try replacing the battery and see if the system starts working again. If not, then it may be a more complex issue.