I'm guessing that the cars with urea injection will be fine. It will be tested by the EPA and CARB if you are in California to make sure. Since the urea injecti

I'm guessing that the cars with urea injection will be fine. It will be tested by the EPA and CARB if you are in California to make sure. Since the urea injection is there specifically to deal with the pollution this issue is causing, the only cheat I would imagine would be to lengthen the amount of time to change the urea tank and if that is the case, VW will be required to cover the added service costs.