What did you do to / for your E53 today??

[X5chemist]

Replacement MAF
Mine has 8873 miles logged on it. One year's worth of driving in freezing temps (1 week ) and hot Texas temps. I tried it because of one single review: "Used this for my X5 (e53), and it went in easy, and fixed my Service Engine Soon light immediatly. For ~$20, you can't beat this aftermarket product. 10/10 would buy again. 10/10 worth the purchase even if you aren't sure that your SES light is due to the MAF. It is good to replace them every 100k miles or so anyway." Other reviews are BMWs too.

[nick325xit 5spd]

Originally Posted by EODguy

But why does the no MAF closed loop use a -40c for predetermined data?

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Probably because running rich is a lot less harmful than running lean.

[workingonit]

Originally Posted by X5chemist

Replacement MAF
Mine has 8873 miles logged on it. One year's worth of driving in freezing temps (1 week ) and hot Texas temps. I tried it because of one single review: "Used this for my X5 (e53), and it went in easy, and fixed my Service Engine Soon light immediatly. For ~$20, you can't beat this aftermarket product. 10/10 would buy again. 10/10 worth the purchase even if you aren't sure that your SES light is due to the MAF. It is good to replace them every 100k miles or so anyway." Other reviews are BMWs too.

That link shows not available, not even on "mostplus" website. However, I looked up the interchange part number given on that link, 5WK96132, and the "other part number" 13621438871, and found it listed on Amazon at https://www.amazon.com/MOSTPLUS-Sens...63601246&psc=1 for $23.58. Ordering it now. Thanks.

[nick325xit 5spd]

Have to say that I'd rather just go pull one at the junkyard than run that.

[workingonit]

Originally Posted by nick325xit 5spd

Have to say that I'd rather just go pull one at the junkyard than run that.

• 1) i'd have to find one nearby, that would even have a compatible match (no idea of "foreign car parts" recycling in my area),
• 2) my previous experiences (over many years) with local recycler yards has been very spotty, sometimes the cars were there, other times not, and seldom with parts I could use,
• 3) local yards aren't well-organized, but are swampy & snakey (not my preferred hunting grounds),
• 4) it's really hot out there, for an old guy with bad parts, to look for car parts,
• 5) I'd probably have to explore for hours, using $$ of gasoline (+ possible entrance fees to search),
• 6) the MAF at the junkyards may or may not be functional, so a semi-quality, cheap unit may be a better choice (I'd probably spend more on just trying to find one)

.

I'll take a chance on the new, cheap one, based on the recommendation. I don't 100% believe that the MAF is the problem, so this is just a quick way to see if there is a MAF element involved.

[Bdc101]

I think I would take my chances with a used unit from ebay for $40 rather than a $20 new one from Amazon. It might not cause problems today... but it's guaranteed that it will eventually!

[EODguy]

MAF still hasn't arrived and it's still costing me $477 USD

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[X5chemist]

Originally Posted by EODguy

MAF still hasn't arrived and it's still costing me $477 USD

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Next time, we'll ship you a $23 unit.

[EODguy]

Originally Posted by X5chemist

Next time, we'll ship you a $23 unit.

Thanks!!

By the way.... shipping is around 100 USD to here in East Jesus

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[bcredliner]

https://www.youtube.com/watch?v=t_0-uQ59Csw

Video might be helpful but don't agree with changing sensor every other oil change. I would only replace MAF with a new one from the original mfg. because of the damage a bad air/fuel ratio can do.