What are the common problems with Ford S-Max's transmission?

I've been experiencing some issues with my Ford S-Max's transmission lately. Sometimes it feels like it's slipping and other times it's not shifting properly. I've also noticed some strange noises coming from under the hood. Any advice on what could be causing this and how to fix it?

It sounds like there may be an issue with your transmission fluid. Have you checked the level and condition of it recently? Low or dirty transmission fluid can cause slipping and shifting problems. I would recommend checking and changing the fluid if needed.

Another possibility could be a faulty transmission control module. These can fail over time and cause issues with shifting and strange noises. It's best to have a professional mechanic diagnose and replace any faulty parts.

I had the same issue with my Ford S-Max and it turned out to be a faulty shift solenoid. It's a relatively easy and inexpensive fix, so have a mechanic check that out as well.