New guy with engine codes



I purchased a 2010 ML350 blutec last week with engine codes of P0101 and 150300. This being my first diesel I thought that it would be an easy MAF cleaning or swap. Not so much. I did the cleaning, cleared the codes and it was good for one drive. I then attempted to replace it and the parts store got me the gas MAF because that is what their computer says fits on a 3.0 diesel (I looked at the screen, not the person's error). Did a bit more digging and there is talk of replacing one of the MAF modules (which one or where from I don't know), replacing the whole thing, and then somebody fixed theirs by fixing their DEF heater (Huh?). I have found a few threads on this forum and other places on the web but no answers posted. This vehicle has NOT done the emissions change at the stealership yet. So my question is, what is the suggested fix for my CEL and will the emissions update fix it anyway?
I did post this in my model forum and was told it was better to post here =)
Cheers,
Tony
My Tank

Dont know what those codes are, gotta get those read so you know what actual is.
Edit; Check here: https://bluetecupdate.mbusa.com/faq
Last edited by Panzerknacker; Sep 5, 2023 at 09:22 AM.







I would ditto to do AEM, if they accept the car with the codes and worry about the rest later.
Beware that the clean air ducting has seal going into turbo, who likes to deteriorate and should be replaced at each disturbance.
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Im not sure what the BMW method is but it might be similar but not the same.







Now to figure out that $2k thing!















They have obligation to do certain number of AEM and since not too many owners went for it, that is how MB USA is dealing with it.


