not having any problems with the car, just want to know if this is really needed or just away for the dealer to get more money out of me.
Should the transmission fluid be changed on the automatic trans in this car? on 2007 Kia Rondo
Yes. The transmission fluid and filter should be changed and the gasket replaced with a new one when the service schedule recommends. There should also be a magnet in the transmission case pan that should be inspected/ cleaned for metal shavings. It is really quite easy to do...most vehicles don't need a complete flush that the dealers push.
Yes you should flush the transmission fluid, there are two ways of doing it. You can pull the pan and the filter, which only replaces 1/4 of the transmission fluid, or have a complete flush done in reverse, which helps clean the filter, and all of the fluid.