Just one and it's makes grinding/rattling noises in low gears at low speed mazda say this a characteristic of awd. Can anyone who has one confirm this.

 

Would have to at least attempt to hear the noise with a really good video of your sound. Otherwise, the blanket response I would tell a customer coming into the shop or calling first is unusual noises are not common on any platform until they are identified as such.

Automotive Engineers NEVER incorporated strange noises ( except Tesla) into a model on any platform> LOL