Why is my Audi A5's engine making a loud rattling noise?

I recently bought a 2018 Audi A5 with low mileage, but I've noticed that the engine makes a loud rattling noise when I accelerate. It seems to be coming from the front of the car. What could be causing this and how can I fix it?

The most common cause of a rattling noise in an Audi A5 engine is a loose or damaged heat shield. This can happen due to wear and tear or from hitting road debris. I recommend taking your car to a mechanic to have them inspect and possibly replace the heat shield.

Some Audi A5 models have been known to have issues with the timing chain tensioners, which can result in a rattling noise from the engine. It's important to have this checked and fixed immediately, as it can lead to serious engine damage. I suggest taking your car to a certified Audi mechanic for inspection and possibly replacement of the timing chain tensioners.

Another possible cause for a rattling noise in your Audi A5's engine could be a faulty or worn out serpentine belt. If the noise is more prominent when you turn on the AC or other accessories, this is likely the issue. I recommend having the serpentine belt replaced by a professional to solve the problem.