Why does my Ford S-Max's engine make strange noises when starting?

I've noticed that my Ford S-Max makes a strange noise whenever I start the engine. It's almost like a rattling sound. Is this something I should be concerned about? What could be causing this noise?

It's likely that the rattling noise is coming from a loose component in the engine, such as a belt or pulley. It's best to have this checked by a mechanic as soon as possible to avoid further damage to the engine.

Check the oil level in your car. A low oil level can cause strange noises in the engine. If the oil level is fine, it's possible that your starter motor is getting worn out and needs to be replaced.

I had the same issue with my Ford S-Max. It turned out to be a faulty ignition coil. I would recommend getting your spark plugs and coils checked by a mechanic.