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And the vehicles in question -- the ones that are causing VW these issues -- do not have any urea injection system. That's the whole point. http://ask.cars.com

And the vehicles in question -- the ones that are causing VW these issues -- do not have any urea injection system. That's the whole point. http://ask.cars.com/2012/11/why-do-some-volkswagen-diesels-use-adblue-and-others-do-not.html http://ask.cars.com/2012/11/why-do-some-volkswagen-diesels-u... VW claimed to have a trick that removed the need for it on their smaller, lighter cars. But that trick was a trick that only allowed them to pass EPA tests.

binarycrusader 11y ago
Ah, so come to find out, the Jetta TDI 2009-2014 did not have AdBlue (I mistakenly believed the one I owned previously did, a 2010 model). However, VW added the AdBlue system to the 2015 Jetta TDI -- perhaps because they knew that this was a problem: http://www.bimmerfest.com/forums/showthread.php?t=765593 http://www.bimmerfest.com/forums/showthread.php?t=765593 On top of that, even though the Passat has an AdBlue urea system, it's still affected: On the open road, a Volkswagen Jetta TDI blew through the U.S. nitrogen oxide (NOx) emissions limit by 15 to 35 times. A VW Passat TDI (with urea aftertreatment) was 5 to 20 times the maximum. http://www.greencarreports.com/news/1100125_vw-diesel-emissions-recall-what-you-need-to-know-in-10-questions/page-2 http://www.greencarreports.com/news/1100125_vw-diesel-emissi... So yeah, I'm not a happy owner right now.