4Jan 2018. #2. As you can see 2 fault codes were recorded. After a bit of research I was fairly confident that the second code - 31103 - SCR NOx Catalyst Bank 1 was related to a problem with the NOx sensor in the exhaust. This made sense as it might explain my increase in Adblue consumption.
Hereis a quick video demonstrating how to refill the AdBlue reservoir on a Passat TDI. This video also shows how to refill the spill-proof bottle of fluid20122014 NAR Passat (A32) TDI/CKRA – AdBlue Level Reset Procedure. Hello, The following procedure is intended for all NAR spec Passat TDI (A32) vehicles from 2012 to 2014 with the CKRA - 103kW-140HP 2.0L TDI engine. Please provide feed back on this as this is currently untested, thank you. Refillas needed. Dealer should do this as part of regularly scheduled maintenance. If you see white crystals in the trunk or wheel well, adblue was spilled. It should be cleaned up with warm water. Adblue fluid is a weak base and will not eat painted metal or carpeting but can rust unpainted metals if it's left to soak.
Theheater unit is not about $750 (part and VW labor). My problem happens when the temp is low and I have a long distance to drive. Wind lowers the freeze temp and DEF has a 12 degree freeze point. My latest trip to a VW dealer I was informed that the DEF cannot freeze while driving because the exhaust heat prevent the freezing.thecheck engine light came on 9/10/15. i brought the car into the dealership on 9/12/15 and learned that the car’s adblue heater had gone and will cost just over $1,000 to replace. the adblue heater heats the adblue to remove no2 for emissions, however volkswagen is claiming that this is not covered under the emissions warranty. Howto Reset Adblue in 2011+ VAG ECUs - Chip Tuning Australia. Mon – Fri: 9.00am to 5pm. Call: 02 8090 1881. Search. Below are screen shots of Adblue/SCR reset successes and failures in a 2012 VW Passat TDI: Below is a screen shot of a properly reset Adblue/SCR in a 2015 Audi Q5 3.0L TDI: This may also be helpeful:
MartinsX I do not have reference to exact VAG document, but in general AdBlue pressure should be within 5-6 bar range, when system is active. When ignition is switched off, pump is switched to work backwards for some seconds to retract AdBlue from system (to avoid freezing and pipe and injector damage in cold weather)
Thedifference is that they don't use Adblue. VW Touareg TDI, VW Passat TDI, and Audi Q7 TDI are shown but this FAQ can also apply to the BMW 335d, BMW X5 xDrive35d, Mercedes Benz GL, ML 320 or 350 BlueTec, E320 Bluetec, or any diesel car that has DPF or Adblue since they work the same. The reason the 2.0L TDI engine 2012+ VW Passat TDI 2012 Passat. Jun 1, 2014. #3. From the shop manual. P203B00 Reductant Level Sensor Circuit Range/Performance. So in this case google is on the money, at least if that's the code you are pulling and it's pulled correctly. Hopefully you are using VCDS. There are other 203 codes that could cause a CEL. thatsaid, adblue count-down refers to when the system is empty and out of adblue, in order to meed EPA and emissions standards (heh) the vehicle will only allow you a certain number of remaining starts, or ignitions before the car must be towed into a dealer to be reset. atleast that's how it is at benz. we charge $160 to reset the system, andItrefused to recognise that I had added 12 litres of Adblue, and kept counting down. The local VW dealer wanted to drop the Adblue tank and remove the level sensor, pump, etc.e1np.