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Comment by inversionOf | Hacker News Reader

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-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.

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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

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-emissi...

So yeah, I'm not a happy owner right now.

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