AdBlue Fault - Engine will not start in 650 miles

Hello
The VCDS log for NOX sensors was: NOX 1 - 206 ppm, NOX 2 - 1650 ppm. Are these values for the NOx ppm in spec or out? Other VCDS info is available if needed to answer my question.

Any help will be appreciated. This 2012 Touareg TDI has already had the AdBlue system replaced less than 10,000 miles ( less than a year). This car has not been used much in the last year.

Thanks
John Chintall

what fault codes are you getting?

CsTDI said:

what fault codes are you getting?

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Right. Tell us a story on what is going on and why you took these logs. Give some background on what is going on so folks can help.

Time for a delete

John,

I'm not sure what the NOx values have to do with your message that the AdBlue must be filled withing 650 miles.

Let's start with the obvious: Did you fill the urea tank since this message came in?
Next, did you reset the system? This involves inserting the key in the ignition, but not turning the car on for at least 30 seconds. My own experience is that it does not always reset the first time. Don't ask me to explain why....I don't know. Most of the time, as reset isn't necessary at all.

You state that the AdBlue system was replaced 10,000 miles ago, but there is a lot to the system. A tank, a pump, a level sensor, urea lines, and an injector. I am struggling to believe that all of these components were replaced. Is it possible that the tank level sensor is still original?

Be aware that Volkswagen has found religion with respect to the AdBlue system and now puts this under the emissions equipment warranty (go figure). On the off-chance that you have less than 80,000 miles on the car, they should replace any failed components under warranty. Since a fix has not been approved (to the best of my knowledge) on earlier 3.0L Touareges, and the fix includes a warranty extension of every urea component until 120,000 miles, I would not be surprised if they fix it anyway (assuming you are under 120K). I'd strongly suggest talking to the dealer

Hi, Could help me, someone I need to replace NOx sensor code error P229, did I found a cheap sensor 03L907807 AD on my car Passat 2011 there is oldest one 03L907807 H could be equivalent !?
Bellow you can see error diagnose.
Thanks
Address 01: Engine (J623-CFFB) Labels: 03L-906-018-CFF.clb
Part No SW: 03L 906 018 BL HW: 03L 907 309 Q
Component: R4 2.0l TDI H24 9980
Revision: 44H24--- Serial number: 00000000000000
Coding: 00190012042401080000
Shop #: WSC 10220 599 00000
ASAM Dataset: EV_ECM20TDI01103L906018BL 003018
ROD: EV_ECM20TDI01103L906018BL.rod
VCID: 75EB9070D4DA296
2 Faults Found:
9567 - NOx Sensor 2 Bank 1
P229F 00 [237] - Implausible Signal
MIL ON - Confirmed - Tested Since Memory Clear
15733 - SCR NOx Catalyst Bank 1
P20EE 00 [096] - Efficiency too Low
Intermittent - Not Confirmed - Tested Since Memory Clear
Readiness: 1 1 0 0 0

crisneg said:

Hi, Could help me, someone I need to replace NOx sensor code error P229, did I found a cheap sensor 03L907807 AD on my car Passat 2011 there is oldest one 03L907807 H could be equivalent !?
Bellow you can see error diagnose.
Thanks
Address 01: Engine (J623-CFFB) Labels: 03L-906-018-CFF.clb
Part No SW: 03L 906 018 BL HW: 03L 907 309 Q
Component: R4 2.0l TDI H24 9980
Revision: 44H24--- Serial number: 00000000000000
Coding: 00190012042401080000
Shop #: WSC 10220 599 00000
ASAM Dataset: EV_ECM20TDI01103L906018BL 003018
ROD: EV_ECM20TDI01103L906018BL.rod
VCID: 75EB9070D4DA296
2 Faults Found:
9567 - NOx Sensor 2 Bank 1
P229F 00 [237] - Implausible Signal
MIL ON - Confirmed - Tested Since Memory Clear
15733 - SCR NOx Catalyst Bank 1
P20EE 00 [096] - Efficiency too Low
Intermittent - Not Confirmed - Tested Since Memory Clear
Readiness: 1 1 0 0 0

Click to expand...

Instead of adding onto someone else's post you would probably get more and/or better responses if you were to start your own new thread!