- P203a 008 mercedes. In April, car started running poorly, queried diagnostics and found "OO4D16 DENOX SYSTEM EFFICIENCY LOW". I thought I read that there was a Service Bulletin that extended protection to 10years/100K miles but now I can't find it. I'm assuming its the same thing. Back in 2012 had recall 11E-A03 Check SCR mixer and EFR valve and program encode control units with CAS. Some time ago, I licensed BMWhat software for my Android so I could query the BMW diagnostics and find out if other trouble codes were also activating SES. Feb 19, 2019 · P203a = Bad SCR Reservoir 1392 Views 11 Replies 5 Participants Last post by ard, May 23, 2019 Jump to Latest M m5e28s38 Discussion starter · Feb 19, 2019 Jan 18, 2017 · Everything I've read points for the P203A points to the SCR and that BMW extended the warranty to 120k miles. Jul 11, 2012 · It's back again. 1 - Last summer it threw P203A: Nov 22, 2017 · Hi, Recently 'check engine' light came up with errors for active-tank sensors are failing. Jun 13, 2012 · OBD-II Diagnostic Trouble Code P203A Jump to Latest 50K views 65 replies 22 participants last post by Doug Huffman Sep 12, 2015 D Feb 23, 2018 · The code is P203a. Guess I'll have to go back for this specific item. Instead they replace the tank. I have done some research online and found that this code related to urea tank level sensor. This is a common failure in the 335D. Couple of questions Jan 4, 2017 · Last night I did a lot of reading here on the P203A light, Reductant Level Sensor Circuit, as it pertains to the DEF system. I am looking to jump this out so that I can pass inspection. Seems like most of us with problems are related to the emission controls. What I need to know is which tank this code refers to. :tsk::thumbdwn:. :tsk::thumbdwn: Jun 13, 2012 · OBD-II Diagnostic Trouble Code P203A Jump to Latest 50K views 65 replies 22 participants last post by Doug Huffman Sep 12, 2015 D Feb 23, 2018 · The code is P203a. The OBD code P203A is for the sensor in the DEF tank. I hope that you do not have to pay $2400. Garmin still registers it and won't clear it. SES light came on for about 2 days, then is gone. P203A code. I have a 2010 that originally had the recall done when it first came out. The car has 127K miles on it and the dealer is not wanting to cover anything under the extended 120K warranty. Apparently, the sensor cannot be replaced by itself. 00492C (P205B) DDE: Reducing-agent active-tank temperature sensor 004BAC (P203A) DDE: Reducing-agent active-tank fill-level sensor, signal Later on, I've got two more: 0046F4 DDE: Reducing-agent Oct 6, 2006 · The DDE software update above is for code 4592 the smoothness on injector 4. Apr 2, 2014 · P203A code was just a phantom, nothing actually wrong w/ #4. Can anyone pinpoint this for me? I want to go down to my local BMW dealer and ask about this since this is the second time this has come on and it Jan 15, 2019 · Over the last six months our 2009 X535d w/80,000mi has thrown 3 DEF fault codes when the DEF tanks were not very low. mqe fl d9y4yx 3k tadak ts 0iynl nfs hy2n 8jsjk
