How to Enable Audi's Lane Departure Warning System on the A4?

I recently purchased a new Audi A4 and noticed it has a lane departure warning system. How do I activate this feature and use it effectively?

To activate the lane departure warning system on the Audi A4, go to the vehicle settings menu and select the lane departure warning option. Make sure the system is switched on and adjust the sensitivity level to your preference. When driving, the system will monitor your lane position and provide visual and audible warnings if you drift out of your lane.