Why does my Audi A7's engine make a clicking noise when I start it?

I recently noticed that my Audi A7 makes a clicking noise when I start the engine. It only lasts for a few seconds and then goes away. Should I be worried? Is there something wrong with my engine?

It is normal for an Audi A7's engine to make a clicking noise when starting. This is due to the fuel injectors and fuel pump priming the engine before it starts. As long as the noise goes away quickly, there should be no cause for concern.