Why does my Audi A6 make a clicking noise when I turn the key?

I have noticed that when I turn the key in my Audi A6, there is a clicking noise coming from the engine. Is this something I should be worried about? What could be causing this and how can I fix it?

It is normal for your Audi A6 to make a clicking noise when you turn the key. This is most likely the starter solenoid engaging and powering the starter motor. However, if the noise is excessive or your car is having difficulty starting, it could be a sign of a failing starter motor.