Why does my Audi's engine make a clicking noise?

I've noticed that when I start my Audi, the engine makes a clicking noise. What could this be a sign of and is it a cause for concern?

The clicking noise could be a sign of a faulty serpentine belt or a worn out belt tensioner. It's best to have a certified technician inspect it to determine the exact cause and make any necessary repairs.

Make sure to also check your spark plugs and ignition coils as they can also cause a clicking noise in the engine. If they are worn out, it's important to replace them to prevent any further damage to your engine.