Why is my Ford S-Max engine making strange noises?

I have noticed that my Ford S-Max engine is making some strange noises, especially when I accelerate or stop at a traffic light. It seems to be getting louder and more frequent. What could be the possible causes and what should I do to fix it?

It is possible that your engine's oil is low and causing the noise. Check your oil level and top up if necessary. If that doesn't solve the issue, it could be a problem with the engine's timing belt.

Another possible cause could be a faulty spark plug or ignition coil. This can cause a misfire in the engine and lead to strange noises. Have a mechanic check and replace these components if needed.

If you hear a rattling noise, it could be a loose heat shield on the exhaust system. Make sure to tighten or replace it to prevent any potential damage.