How often should I change the transmission fluid in my Ford S-Max?

I recently purchased a used Ford S-Max and I'm not sure when the transmission fluid was last changed. I want to make sure I'm caring for my car properly. Any advice on how often I should change the transmission fluid?

It's generally recommended to change the transmission fluid every 30,000 miles or every two years. However, if you do a lot of city driving or frequently tow heavy loads, it's best to change it more often.

I would suggest checking your owner's manual for specific recommendations for your Ford S-Max. It may vary depending on the model and year.