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Discussion Starter #1
does anybody have any experience with a 4BAC Reducing Agent Active Tank Fill Level Sensor Signal code?
I have this code on me 2010 BMW X5 35D. I have reset this on a number of occasions and it keeps coming back. I could certainly use some direction here if anyone has run into this before
 

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Resident Curmudgeon
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+1

provided it is under 120k miles (and 10 years, but as a 2010, that checks out)
 
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