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I'm still working on it Doug. So far I've changed both nox sensors. I haven't driven the car anywhere. Just idling in the driveway and troubleshooting with ISTA. I couldn't continue in ISTA because it says mybintegration level is too low do I'm looking into that. Oncebi figure that out I can go for the conditioning run to clear the faults. I did manage to clear the adaptation fault for the nox sensors. So now I have warning 1 and 2 for the countdown and the poor quality that I can reset once I can continue in the service plan.

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Problem fixed. Like the previous post said, I changed both nox sensors and I don't think they may have been necessary. When I started this out I sought out a way to read codes and I bought the Carly then ISTA. I didn't know about the warm up times on the nox sensors so I thought they may have been faulty. I also know know the rear sensor doesn't go active until you drive. Other than that topped off the set (you can see the level in ISTA) and cleared all adaptations I could find dealing with SCR. After 25 miles check control message went away.

I read about an issue in the programming and long term adaptation of the nox in the f10 in a BMW technical service bulliten.

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17k miles you've ignored this and now 'quite unhappy'??????

So, to anser the embeded uquestions:

1. Yes, start with cleaning thje valve

2. No, no easy bypasses on teh countdown

3. Sure, delete all the stuff. Not cheap. Not on a saturday afternoon.

4. Is your state on CA? 1. There is this thing called Google. and 2. Doesnt matter, too late- had you acted before 70k, then maybe

Your NOX sensors may be dying too... that'd be #2 after the injector on my list.

Any BMW software in your group? you'll need that...
I just went through this with BMW dealer. My car is a 740 L D(for diesel)..........87K miles. I took in due to the "incorrect fluid" warning. The dealer changed the metering valve $1500 and also, under warranty, replaced both NOX sensors. There is a 120K mile warranty on this type of thing. Hope this helps
 
I hope you did not have to pay 1500 for the metering valve replacement. That is a 30 minute job and an inexpensive part. And the metering valve is NEVER bad, but it is the first thing the dealer will do In their quest to throw (your) money at the problem. The real issue is always the weak link in the system, the NOX sensors, which degrade over time, about 100,000 kilometers as designed.
 
I hope you did not have to pay 1500 for the metering valve replacement. That is a 30 minute job and an inexpensive part. And the metering valve is NEVER bad, but it is the first thing the dealer will do In their quest to throw (your) money at the problem. The real issue is always the weak link in the system, the NOX sensors, which degrade over time, about 100,000 kilometers as designed.
Welllll… While it is a quick job and cheap part they ARE bad occasionally. There is a test plan to check the spray pattern as well as the quantity of injection. Frequently they clog of stick wide open. I’ve seen plenty of pipes FULL of DEF and some that split around the “saucer” and leak all over hell.
The real issue COULD be the NOX sensors but it could also be thermostat, metering valve, SCR cat, Regen prevented, several things as the issue is actually “SCR efficiency” which I THINK is 4D16. The system doesn’t know why it’s not converting NOX but it knows that it isn’t based on NOX readings. There is an old version of NOX and a newer version which ISTA easily and clearly identifies. They are covered under an extended warranty SIB 01 19 18 as well so techs are happy to slap them in and take BMWs money but it’s often NOT the cause of the issue. Most frequently it’s the thermostat as it WILL NOT set a code except for “SCR efficiency” as the vehicle is not reaching 90C in order to properly convert NOX or go into Regen.
Past of the problem that the dealer “throws your money at” is that the SCR system test takes well over 1/2 hour each time and if NOX are already new version is unlikely to fail them. It will simply fail the test plan. There IS an SIB about helping to diagnose what the actual cause is but it’s HELPFUL and not definitive ( SIB 18 02 17 ).
The best help is a tech that’s dealt with this fault several times in the past and already has a good diagnostic plan even before starting to “throw money”
 
I got the count down on my 2011 335D The computer read that I had the wrong fluid. The issue I bought a case of fluid from BMW
So I know that was not right. In 5 years I drove 3000 miles. For 8 months it sat at the service center, Then I would get the car the CEL would illuminate, Last year I drove 10 miles. The CEL Light was back on. I have adopted 8 children. Sometimes I would drive 1000 miles fpr a medical or psych appointment. I vane written letters to managers on the problems I have had. No one has been able to get me going. Some times we all things beyond our control. I wanted to sell the car but the kbb was always showing the balance I owed was more the
the value of the car.
Good luck I hope the diesel problem will be solved. I now only have 2 payments to go. Then Because it will not pass smog I may not sell it.Who would have thought.
 
I got the count down on my 2011 335D The computer read that I had the wrong fluid. The issue I bought a case of fluid from BMW
So I know that was not right. In 5 years I drove 3000 miles. For 8 months it sat at the service center, Then I would get the car the CEL would illuminate, Last year I drove 10 miles. The CEL Light was back on. I have adopted 8 children. Sometimes I would drive 1000 miles fpr a medical or psych appointment. I vane written letters to managers on the problems I have had. No one has been able to get me going. Some times we all things beyond our control. I wanted to sell the car but the kbb was always showing the balance I owed was more the
the value of the car.
Good luck I hope the diesel problem will be solved. I now only have 2 payments to go. Then Because it will not pass smog I may not sell it.Who would have thought.
Incorrect fluid is a conclusion from observation of inadequate response to an injection of presumed good DEF. There is no bad DEF. There are commonly faulty sensors providing the corrupt observations.

Unfortunately it appears that you have committed to a particular course of action. Otherwise I would recommend giving a competent BMW Service Center the opportunity to make you well. As a fostering parent you may have legal remedies and assistance not available to the general BMW owners. Reach out to your support structure.

Reach out to BMW NA for an exercise of their goodwill.
 
Problem fixed. Like the previous post said, I changed both nox sensors and I don't think they may have been necessary. When I started this out I sought out a way to read codes and I bought the Carly then ISTA. I didn't know about the warm up times on the nox sensors so I thought they may have been faulty. I also know know the rear sensor doesn't go active until you drive. Other than that topped off the set (you can see the level in ISTA) and cleared all adaptations I could find dealing with SCR. After 25 miles check control message went away. I read about an issue in the programming and long term adaptation of the nox in the f10 in a BMW technical service bulliten. Sent from my SM-N950U1 using Bimmerfest mobile app
Which ISTA did you buy to do this procedure? Is this all that is needed to reset the 1000 k countdown, drove mine to zero now doesn’t start. Wanted to try this before trying to reprogram the ecu
 
Can Anyone help with this issue? I have a 2014 328D with 113k miles and an appointment for Friday to see if the dealer will replace the nox sensors. My issue is the countdown started and while I was away, my wife or mother in law used the car and luckily drove home when they saw the message about no start and it's in my driveway but the countdown reached 0.

This is my means of transportation for work and now, im screwed. Any suggestions? should I purchase the ista software and cable and try to reset the countdown? i dont know what to do.
 
BMW 2015 X3d.
January 2024 had the dreaded "Incorrect fluid added 322km to no start" come on while on vacation. Incredibly we were 20km from a BMW dealership. Stopped in, the tech said line was frozen and had to thaw. Left it overnight, DEF fluid added and the code was cleared. Drove 1000km and the light came back on. Took the X3d to my local after market BMW repair guy. He found a $50.00 muffler hanger broken that may have caused air to access at a joint. Replace the clamp and all is good.
 
I do wonder how Gailaroose ended his quest with the 335d? I'd love to purchase a 335d but obviously I need to get ISTA+ up and running if I have another BWM around here.

Bruce
 
Hey there! I so should have posted sooner.

I got the issue resolved by a tune and full deletes. Car is running great and no longer have to worry about the emissions system!

I'm going to see if I can figure out how to close the thread. Thank you for the response though!


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Anyone that deletes their SCR and/or DPF should also pipe in a small amount of their exhaust into their cabin so they too can enjoy what every car a mile behind you on the freeway enjoys - toxic and pungent exhaust.
 
Anyone know how to add more time after "no start" wherein it actually no longer starts? I got error code 2C4E00 SCR system poor adblue quality or system fault. I drained and refilled wt new DEF but still error. It only gave me 30 miles to start. Car is 2016 328d. I have Ista+ and no Nox codes. Only DEF code. I believe after researching it might after all be nox sensor(s). So I'd be happy to replace and check but can't check. No start. Anyone know next possible steps? I tried to releoad existing software but it gave a message something wasn't hooked up (don't remember). I was able to load new software prior to all this so I know my setup is working.
 
Can Anyone help with this issue? I have a 2014 328D with 113k miles and an appointment for Friday to see if the dealer will replace the nox sensors. My issue is the countdown started and while I was away, my wife or mother in law used the car and luckily drove home when they saw the message about no start and it's in my driveway but the countdown reached 0.

This is my means of transportation for work and now, im screwed. Any suggestions? should I purchase the ista software and cable and try to reset the countdown? i dont know what to do.
How did you resolve?
 
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