ekkoh99
Veteran Member
Have you guys heard about the 2011 Touareg and Ad blue system problem?
Is it really just the NOx sensor?
Is it really just the NOx sensor?
If NOx sensor = stupid dealers then the answer is yes!Have you guys heard about the 2011 Touareg and Ad blue system problem?
Is it really just the NOx sensor?
The article in the link is misinformed. The Diesel Particulate Filter (DPF) talked about there has NOTHING to do with Diesel Exhaust Fluid (DEF) or AdBlue. DEF - which is the generic 'name' - is a 30% urea solution. It is 30% because that is the lowest freezing point mixture of Urea and water. The DEF is injected into an SCR catalyst where it reacts with some of the NOx in the exhaust - in the presence of the catalyst - and turns it into N2 gas and water. Only enough is injected by the computer to meet emissions requirements for the load and rpm conditions that exist. This catalyst is NOT the same as used on other automotive products.Isn't it under the free service period? All Adblue and diesel exhaust fluid is the same, it doesn't matter where it's purchased from. You could tell by looking at the ingredients. http://www.myturbodiesel.com/1000q/vw-touareg-tdi-dpf-audi-q7.htm Here is a little more about the system and adblue fluid itself.
I wrote the article. It talks about the entire exhaust emissions system, where is it incorrect? If so, I will correct it.The article in the link is misinformed. The Diesel Particulate Filter (DPF) talked about there has NOTHING to do with Diesel Exhaust Fluid (DEF) or AdBlue.
Not true.Some one had claimed that in emergency, you may pee in the adblue resivor. Our pee has amonia that is a component of adblue.
Actually, it IS true! Urea is a byproduct of protein metabolism produced by ALL mammals. It is very water soluble and therefore is excreted by the kidneys / bladder / etc. Unfortunately what we excrete is FAR from the 30% concentration required for the Bluetec (or AdBlue) system. It would be just as effective to use clean water. Well, almost!Not true.
According to VW's technical literature and from what I've heard from someone who worked in Adblue equipment, in the Touareg or Q7's system, if you put water or pee into the system, the NOx sensor will know it's not working. Either the 600 miles till empty countdown will begin or you will get an immediate no start possible message.Some one had claimed that in emergency, you may pee in the adblue resivor. Our pee has amonia that is a component of adblue.
FYI, just saw a 2.5 gal container of DEF at a WalMart. A little cheaper than NAPA, I think I saw an $11.37 price tag.Yeah, my NAPA store's got it priced at about $12 for a 2.5 gal jug.
Actually its not. The minerals and other contaminants in urine will quickly destroy the AdBlue system.Actually, it IS true! Urea is a byproduct of protein metabolism produced by ALL mammals.
It IS true that pee has urea in it - always has, always will. What is also NOT true about the post is that "some have said you can pee in the system in an emergency" You are probably correct that is would not be useful to do that. The concentration of urea in human urine is way short of the amount required by the AdBlue system as designed. We were BOTH right - and both wrong!Actually its not. The minerals and other contaminants in urine will quickly destroy the AdBlue system.
hey, gotta keep the emissions system running properly.You thought you got funny looks filling up with diesel?
"yeah im just pissing in my tank so my car runs properly"
You can just get a 2 1/2 gallon bottle for only around $8.00 from Walmart & be done with it!The wife's AD blue light is back on again. She wants to take it to the dealer to have it filled up. They did it the last time the Treg was in the shop. I told her that it is so simple to do that there is no reason to pay them and have it done. I also told her that there is a similar product available at just about any truck stop, and she freaked! Has anyone out there used the truck stop stuff, and have there been any problems with it? I just want to re-assure her with your experiences. She won't believe me, but of course I'm just her husband.