How do I activate cruise control in my Audi A3?

I just bought a new Audi A3 but can't figure out how to use the cruise control. Can someone please explain the process to me?

To activate cruise control in your Audi A3, first press the cruise control button on the steering wheel. Then, use the +/- buttons to set your desired speed. Finally, press the 'set' button and your cruise control should be engaged.

I found it helpful to also use the speed limiter function in conjunction with cruise control. This allows you to set a maximum speed for added safety while on the highway.