What should I do if my Audi A2 is experiencing engine issues?

I recently noticed that my Audi A2 is having trouble starting and is making strange noises when running. What could be causing this and what steps should I take to fix it?

It's possible that your engine is not getting enough fuel or air. This could be due to a clogged air filter or fuel filter. Check these components and replace them if necessary.

It could also be an issue with the spark plugs. Check for any corrosion or build up on the plugs and clean or replace them if needed.

If the problem persists, it's best to take your Audi to a mechanic for a diagnostic test. They will be able to pinpoint the exact issue and provide a solution.