VAGCOM/VCDS Info needed for 2011 Audi Q7 DEF (AdBlue/

DrSpalding

Veteran Member
Joined
May 3, 2006
Location
Redmond, WA
TDI
2006 Jetta TDI DSG, 2011 Audi Q7 TDI, 2014 VW Touareg TDI
VAGCOM/VCDS Info needed for 2011 Audi Q7 DEF (AdBlue/SCR) Level

I posted this in the Audi Q7 area first (http://forums.tdiclub.com/showthread.php?t=370581) but haven't gotten any response as yet.

The page and video from myturbodiesel.com (here http://www.myturbodiesel.com/1000q/audi-q7-tdi-dpf-faq.htm and here [URL="http://youtu.be/z7kkQJO_Oaw)%20shows"]http://youtu.be/z7kkQJO_Oaw) shows[/URL] a Touareg TDI having advanced measuring blocks of 838 and 849 to show the "reducing agent" aka AdBlue, DEF, or SCR, in Control->Engine->Adv. Measuring Values. The Q7 TDI (2011 MY) doesn't show that and stops somewhere in the mid-700's. There are some SCR values to read, but the only one with a level indication was the voltage for the level indicator. The only other is the same, i.e. grams (I presume) of DEF used since last reset. Do I need to infer the level based on a certain filled condition with the difference in mass of DEF used or is there a table of the voltage indicator to actual levels? That is given in mV as I recall. Or is there a location in the AdvMeas. block that I am missing?

Thanks in advance!
 
Last edited:

pedser

Member
Joined
Sep 9, 2013
Location
tulsa, United States
TDI
Q5 TDI
Did you ever got an answer on the DEF level location using vcds ? I am in the same position and can't find any data, currently in a 2014 Q5 TDI.

Thanks,
 
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