Pulled this from another thread for a Mazda 5
The Mazda 5 is the 1st generation of the car, therefore it is going to have some issues, almost all first runs do. There was a guy I was chatting with at Tony March Mazda. we were waiting in the service department and he had 2004, and he had been into the service department at least once a week. The lattest issue was a faulty gas cap that was leading to a CEL and sputtering.
Also, after reading several reviews for the 5, it's basically a tall version of the 3 (same motor and platform, just heavier and taller).