Why does my Audi A5 engine shake when idling?

I have noticed that my Audi A5 engine shakes or vibrates when idling. What could be causing this issue and how can I fix it?

One common reason for engine shaking while idling in an Audi A5 is a misfire in one of the cylinders. This can be caused by a variety of issues, such as faulty spark plugs, dirty fuel injectors, or a clogged air filter. To fix this, it is recommended to have the car inspected by a mechanic and replaced any necessary components.

Another possible reason for engine shaking while idling is a vacuum leak. This is when there is an unbalanced air-to-fuel ratio in the engine, causing it to shake. Check for any cracked or disconnected hoses and have them replaced if necessary.