What are some common issues with the Ford S-Max's automatic transmission?

I recently purchased a used Ford S-Max and noticed some strange behavior with the automatic transmission. It seems to shift gears roughly and occasionally slips out of gear. What could be causing this issue and how can I prevent it?

It sounds like your S-Max may be experiencing issues with its transmission control module. I would recommend taking it to a trusted mechanic for a diagnostic test to determine the exact issue.

I had a similar issue with my S-Max and it turned out to be a faulty solenoid. This is a relatively easy and inexpensive fix, so I would suggest bringing your car to a mechanic for further inspection.

If you notice that your transmission is slipping or shifting roughly, it could be due to low transmission fluid levels. I would recommend checking your fluid levels and topping off if necessary.