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Go Back   TDIClub Forums > TDI Model Specific Discussions Areas > VW Passat Family (NMS and B7) TDIs (2012+)

VW Passat Family (NMS and B7) TDIs (2012+) Discussion area for the 2012+ Passat TDI (North American and rest of world versions versions). The North American model was previously codenamed NMS (New Midsize Sedan) and the version the rest of the world gets is sometimes referred to as B7.

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Old May 23rd, 2015, 14:34   #46
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The parts for mine came in and I had mine repaired today. The Fidelity Platinum warranty paid to replace the entire heater assembly and refill the fluid. Out the door for the $100 deductible. I usually don't get extended warranties but I am glad I did on this one so far.
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Old May 26th, 2015, 21:26   #47
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Has anybody sought out Federal Emissions Standards to be financially liable since (I believe) the Adblue system is covered by the 100k Fed. Emissions Statute?

2012 Passat TDI SE. 6SpM
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Old May 27th, 2015, 09:45   #48
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I just read the entire thread. A large portion of reported failures came from cars reported to have used PEAK DEF fluid. At first I was thinking maybe it was coincidence but now... not so much.

I'm keeping an eye on this thread as I just bought a 15' SE 6mt last friday.
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Old May 27th, 2015, 09:49   #49
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DEF is defined by an ISO standard that is followed by every manufacturer. Peak brand def is the most prolific def available at the retail packaged level. I wouldnt subscribe the use of the easiest to obtain brand as a culprit in failures.
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Last edited by kydsid; May 27th, 2015 at 09:55.
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Old May 28th, 2015, 08:46   #50
Join Date: Dec 2012
Location: N.VA
TDI(s): Passat SEL

Heater is not moving part so what could be a difference in fluid for none moving components. Unless, Peak has some kind oxidizer that can effect electrical components.
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Old May 28th, 2015, 11:44   #51
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When and if I get my car back I'll share the post mortem

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Old May 28th, 2015, 14:36   #52
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Nobody at VW knows how long it will take for the German sourced part be ready for shipment. I've already gone on Twitter to start quantifying how big of a problem this is- On Twitter go to: @VW and use hashtag #VWFixMyTDIAdblueSystem

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Old May 29th, 2015, 05:03   #53
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On Twitter- get hold of VW via #VWCares

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Old May 29th, 2015, 11:04   #54
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Hmm, I have used Peak DEF in our car. It meets the SAE spec supposedly, and if there were any issues with it I would think the car would throw other faults.

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Originally Posted by BRUSSELS BELGIAN View Post
Maybe I should pay MYSELF to do bad work on my car!
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Old May 29th, 2015, 21:15   #55
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I only used vw adblue and have a failed heater element.
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Old June 3rd, 2015, 10:45   #56
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UPDATE: Got hold of VW North America's Customer Service- Advocate Group last week and a follow up this past Monday. I off loaded to this person for at least seven minutes regarding VW's failure to: Plan, forecast, deliver, and accurately communicate effectively to their own dealerships. Coincidentally, a Heater Element had arrived at my dealer's service/parts department right as I received the call. As soon as I completed the call with VW NA, I called the Service Manager who was pleasantly surprised to actually confirm that it had arrived. He had zero notification or communications from any source at VW letting him know it was headed his way.

I'm hoping that my car is completed PDQ!

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Old June 3rd, 2015, 12:09   #57
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I realize this is for Passats and I have a 2012 T'reg with a failed tank heater, but the principle applies.

I am "just" out of warranty. Opened a case with VWoA and they agreed to cover 1/3 of the total cost for part and labour. My share is about $550, they pay $ 208.

I am on the hook for hotel and rental car (due to distance to dealership) after they messed up the parts order and "overnight" turned into two days.

If you are out of warranty, seriously think about purchasing the repair kit and having it done elsewhere, at a lower labour rate.
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Old June 3rd, 2015, 16:46   #58
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Originally Posted by Sprocket View Post
I just replaced mine too this past Monday night on my 2010 Touareg. Kind of a pain to get to with the Touareg as the rear exhaust system / muffler needs to be dropped. I was pretty surprised at just how much the muffler weighs! Once that's out of the way it's easy peasy.

I was getting codes related to the reductant level sensor.

The only thing I noticed comparing the old unit with the new unit is that there is insulation on the wires leading to the heater element. The original unit's wires were unshielded from the heater & approx 2" up.

The heater repair kit part was $323.00 from 1st VW Parts

So far so good.
So, everything was good for a couple of weeks and now I'm getting the code below. I haven't had a chance to really research or dig into it yet.

1 Fault Found:
008430 - SCR NOx Catalyst Bank 1
P20EE - 001 - Efficiency too Low - MIL ON
Freeze Frame:
Fault Status: 11100001
Fault Priority: 2
Fault Frequency: 3
Reset counter: 255
Mileage: 169561 km
Time Indication: 0
Date: 2015.05.07
Time: 18:05:04

Freeze Frame:
RPM: 2184 /min
Speed: 110.9 km/h
Voltage: 14.14 V
Temperature: 258.0C
(no units): 0.00
(no units): 0.55
(no units): 1.37

Readiness: 1 1 0 0 0
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Old June 3rd, 2015, 21:41   #59
Join Date: Oct 2004
Location: Canada

You may be looking at a Nox sensor replacement near the Nox catalytic converter. This is the revised part number (for 2012 passat) -> 03L 907 807 AD

Not 100% sure but this is most likely your problem, not the adBlue tank sensor.

Got mine from amazon for 330+. Dealer quoted me $1020+ for the part only. Be weary of dealers.

Edit: Part number for 2010 Touareg would be 059907807H for front Nox sensor and 059907807G for rear sensor.

Last edited by stephane; June 3rd, 2015 at 22:01.
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Old June 4th, 2015, 00:07   #60
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Hey guys....

Got room for one more in this clubhouse? =^(

CEL came on last night at 41,xxx miles. So just outside of warranty.
Came back with code P205C Reductant Tank Temperature Sensor Short to GND
No previous hints of impending failure.
Fortunately I bought the Fidelity Platinum extended warranty when I bought my car so they will be picking up the tab.
Since it is not a level sensor failure, I am not getting a "xxxx miles to no start". So I will continue to drive it while I wait for the part to come in. It is on back order so they said about a week.

The good thing is that since I now work at my servicing dealer, I will know the minute it comes in. I HATE seeing the CEL on...
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