Sorry to hear about the problems. The V9X powerplant has been pretty reliable, it's a shame to hear about issues with the flagship model.
Australia is supposed to be introducing lemon laws - if an item sold is returned 3 times for the same problem, the item MUST be replaced. I heard Victoria had already started the passage of that through parliament (if it hasn't passed it already).
There were issues with EGR and the dealers were replacing the valves AND updating the software, and someone came on to this forum and said that it wasn't the EGR valve at all, it was only the software - I wonder if this dealer did ALL the work? Maybe they just replaced the valve and thought "let's leave it at that, stuff the software that's bull" ?
If so, Nissan would have every right to kick the dealer's ***. And it SHOULD be kicked too, if they're so incapable of even moving a couple of cars in order to make a sale, then perhaps the idiots shouldn't be in the business of selling cars!
Good luck with the pursuit of this.
Hey. bay city nissan should know about the egr faults because my 550 had it and was fixed by maryborough nissan. Same owner for both dealers! Other than that no other problems on mine. The dealer is a real piece of work. I have been told that because my car was not purchased from him when it come to service I would be put at the bottom of the list. But when a Brisbane dealer is doing the price $8000 better and they could not get close, i took that risk.