Why is my Ford S-Max's engine making a strange noise?

I have noticed that my Ford S-Max's engine has been making a strange noise lately. It's not a constant noise, but it happens intermittently and sounds like a rattling or clicking. What could be causing this and should I be concerned?

It sounds like your engine may be experiencing some issues with the timing chain or tensioner. I would recommend taking your car to a certified Ford mechanic for a proper diagnosis and repair. It's better to address this issue sooner rather than later to avoid potential damage to your engine.

I had a similar issue with my Ford S-Max and it turned out to be a loose exhaust heat shield. It's a common problem with this model, but not too difficult or expensive to fix. So definitely get it checked out, but don't stress too much.

I have had the same problem with my Ford S-Max and it turned out to be a faulty valve lifter. I would suggest bringing your car to a Ford dealership as they would have the necessary tools and expertise to fix the issue. It may be a bit pricey, but it's worth it for the peace of mind.