P204f vw.
Dec 12, 2022 · First post, please bear with me.
P204f vw. com What does the P204F – Reductant System Performance mean? The P204F code refers to an issue within the reductant system performance of a vehicle. Same codes each time - P204F00 / P20EE00 Its under an The P204F code indicates a diesel particulate filter (DPF) regeneration issue, often triggered by low DEF (AdBlue) levels. I would contact the CA attorneys to fight back on that issue. They claim the NOx sensor is bad and can't find the parts anywhere. They told me Dec 25, 2017 · I have one that is currently stuck in VW Dealership jail (throwing P204F and P20EE with the shutdown warning). Dec 12, 2022 · First post, please bear with me. I replaced the water pump and timing belt at the same time. This one is good, 941803 Audi 3. Specifically, it indicates that the powertrain control module (PCM) has detected a problem related to the selective catalytic reduction (SCR) process. Delete the P204F fault code by selecting the erase function for “OBD systems” (highlighted). If the check engine light persists, scan Good afternoon, I am hoping team Reddit can provide some expertise regarding a 2012 Passat TDI (CKRA) that has had so many issues over the past couple of years. Not happy with VW. Right around 50 miles into the trip, AdBlue 200 mile warning comes on with my CEL. Most of this was covered under the dieselgate Feb 16, 2020 · P204F code, 2 "repairs", not fixed VW Passat by julianop » Sun Feb 16, 2020 6:00 pm Hi guys. Bank 1 refers to the engine bank that contains the number one cylinder. I bought my Transporter used at around 115. ” The code is triggered once the powertrain control module (PCM) detects an issue in the reductant part of the SCR system. Got an odd one in today, 2013 VW Passat CKRA TDI with P0401 EGR insufficent flow and P240F EGR system response too slow. I am now 2k miles past my dieselgate warranty and the car is at the dealership as they tried clearing them (for free) and couldn't so they needed to do a manual reset. Sep 6, 2024 · What are the possible causes of OBDII code P204F? - Possible causes of this code include a faulty reductant injector, issues with the reductant pump, low DEF (diesel exhaust fluid) level, or a malfunctioning reductant quality sensor. When the vehicle was released for sale the dealer that did the recall only updated the modules with 2 new software packages. I believe the dealer replaced the Nox sensor to repair the P2201 NOx sensor Apr 19, 2023 · 2013 Passat 2. Select Basic Settings from the dropdown box in the upper right and click the green arrow (figure 4). Cycle the ignition OFF and ON again after completing the DTC memory erase. 0-liter V6 TDI With Clean Diesel System and with a subscription to erWin, you can also find all the factory repair manuals and wiring diagrams, all available for downloading/printing for Oct 26, 2023 · The code P204F: Reductant Quality Performance points out a fault in the Diesel Exhaust Fluid (DEF) system, indicating that the DEF does not meet the required May 23, 2024 · The P204F trouble code technically means "Reductant System Performance Bank 1". Each time they were able to clear it out and I would be on my way. P204F, P20EE, P020A P204F - No Fix 200 mile lockout. DTCs P20EE, P204F and or P207F Stored in ECM Fault Memory Technical Background Poor Adblue quality may result in DTCs. Bank 1 refers to the bank of the engine where cylinder #1 is located. Check the DEF injector and dosing control unit for faults or clogging. Apr 6, 2020 · There are several Audi and Volkswagen Self Study Programs that are available that explain the AdBlue and diesel engine systems. Oct 8, 2025 · Codes like P207F and P204F are common on these vans and can trigger reduced power, warning messages, and eventual no-start. Jan 30, 2025 · My mechanic also found a tsb by Volkswagen themselves stating to diagnose a p204f code they have to plug in & check that all epa approved mods were up to date (which they did not do) OBD-II fault code P204F means there is a fault in the Reductant System, which is responsible for reducing emissions. 0 TDI AdBlue No-Start Condition After Driving 80+ MPH for a Period of Time. Over the past couple of cold months up here in Minnesota I've been getting a P204F code "Reductant system performance, bank 1". Sep 4, 2023 · Diagnostic trouble code P204F stands for “Reductant System Performance Bank 1. Volkswagen TDI SEL Turbo Diesel. I work on Tier 4 interim and Tier 4 final engines almost daily on heavy equipment. 0 TDI 150hp, engine code: CXH | 132. 6 Speed Automatic Transmission. I have received this code 3 times and each required a trip to the dealership to get it resolved. Long story short, the engine was replaced a year and a half ago. See full list on obd-codes. So, VW has violated the warranty three times over the last month with three separate dealers. And, how would you like to connect with the Mechanic - phone call or online chat? Jun 4, 2022 · Im a total novice and new to Transporters so bear with Since buying my van (T28/2018/150bhp/panel van) it has had 6 occurrences in past 6 months of ad blue level jumping around (from down to 650 miles) and/or the EML light coming on. At around Feb 8, 2025 · The P204F trouble code is a diagnostic trouble code (DTC) that indicates a problem with the reductant system performance in vehicles equipped with Selective Catalytic Reduction (SCR) systems. Evidently this is the "Selective Calatyst Reduction" or Ad-Blue system. 2012 Passat TDI There is little information regarding this issue out there and wanted to lay out what I know. Jun 7, 2017 · The warranty states clearly that VW must provide a loaner vehicle when the repair is scheduled to take more than three hours. AdBlue Light won't reset and worse, someone is telling you it will take $3k-$5k to reset it! 2016 VW Transporter T6 | 2. That's ridiculous. Here’s what those codes mean, the fast checks you can do, and how we fix the system properly so your van stays legal and gets its BHP back. I am getting the P204F Permanent, as well as P20EE Permanent codes once again. Apr 10, 2024 · Curious about the P204F Performance Code in reductant system analysis? Uncover the complexities and optimization strategies in this critical diagnostic journey. This may lead to issues with DPF regener The VW Mechanic can help with your DEF tank issue and the P204F code on your 2014 Volkswagen Passat. . This system is crucial for reducing nitrogen oxide (NOx Aug 7, 2020 · The service advisor and I used to work together back in the day so he let me go behind the desk and look at the VW warranty history. Here's exactly what you need to do to fix it. 000km in February this year. I’ve heard this can throw a code for the DEF system. Mar 21, 2019 · I'm wondering if anyone has found a way of unlocking the error code P204F $07E8 Generic Reductant System Performance Bank 1 on their Passat Tdi? I ran out When code P204F is stored, it means that the powertrain control module (PCM) has detected a malfunction in the reductant portion of the selective catalyst reduction (SCR) system. Took into dealer 12/11. Cold temperatures can affect DEF fluid performance, so ensure proper storage. Aug 19, 2024 · The P204F is a generic powertrain diagnostic trouble code that indicates a problem with the reductant system performance on engine bank 1 in diesel vehicles equipped with a Selective Catalytic Reduction (SCR) system. The common causes of a P204F code include a defective reductant pressure sensor, a bad reductant system injector Feb 2, 2024 · Hey guys, I drive a 2014 VW Passat TDI SE I was driving on the highway yesterday for about 60 miles over 80mph in under 40 degree weather. Apr 2, 2013 · Regardless, the P204F code has been confirmed by VW that there is no fix for it after the "diesel gate software fix" software fix update. When the AdBlue warning appears, first refill the DEF tank with high-quality fluid. P204f code is a generic code that means there is a further issue in the aftertreatement system. A malfunction here can lead to issues with DPF regeneration. VW directed them to check DEF system for leaks, they found no issues, VW told them to hard reset the DEF level sensor, reset the CEL and give me back the car. Specifically, it refers to issues detected by the powertrain control module (PCM) regarding the reductant system for Bank 1 of the engine. Recently, I had to replace an exhaust bracket, and DPF system. 000km Let me know if you need more information Hello wonderful mechanics and enthusiasts, I have a bit of a mystery machine I hope you can help with. I found a local independent shop that are supposed to be experts in VW TDI's. I'm a bit new to this, so I apologize if this is a basic question. It’s going to the mechanic again start of next week, but I’d like to have a second opinion. I live in ND and it gets quite cold here. May 31, 2015 · P204F00 fault, VW has no fix! My TDI threw a CEL and P204F00 fault on 12/9 with 200 mile to no restart warning. About 5 miles OBD-II fault code P204F indicates a problem with the Reductant System, which is responsible for reducing emissions. 2k9az1vhcux82bngjctmwlfoebvbp5epathsrz