Originally posted by condor27596 Here is something that just occurred to me. In NC you must pass emissions test and pay your taxes before you can renew your license plate.
What if the fix does not get them to where they are supposed to be? No plate? What if the fix gives you 15 mpg and you bought the car thinking you
would get 40 mpg?
In Colorado, the diesel emissions test does not have a standard for NOx emissions. CO has mobile test stations that can measure it on the road, one test that the cheater cars won't pass, and data from that was used to confirm the results that identified the cheat. But in the fixed test stations, those VWs would pass today. Probably cars in California would be in trouble. California has its own emissions regulations.
As I understand it, VW has two possible repair options. One is to change the software so it is permanently in test-passing mode. That would be cheap and quick for VW, but probably decrease fuel economy and power significantly. The other is to retrofit a urea catalyst system like everyone else uses, which should work without affecting economy or power. Owners would have to add the urea catalyst to keep it working. That's certainly going to cost VW a lot. Even if they have a system that fits and works, they have to make, distribute and install it in 11 million cars.
If I owned one of these cars, I'd want the retrofit solution, a warranty that it works well and a lifetime supply of urea catalyst. That should bring the cars into compliance without affecting performance so the resale value should be intact.