FAERSI Mass Air Flow Sensor Meter MAF 13627566983 5WK9642Z Compatible with 330i 330Ci 330xi Z4 X3, 2003 2004 2005 2006 330Ci 3.0L, 2002-2005 330i 330XI 3.0L, 2004-2006 X3 3.0L & 2003 Z4 3.0L L6

Hello all! I have a 2003 (E46) 330i ZHP. My OEM mass air flow sensor failed recently. As a result of this the car would go into limp mode while the MAF was connected and would only drive with it disconnected. As you may imagine, it drives extremely rough while it was disconnected as it was very choppy throughout the powerband (especially below 3.5Krpm). In addition to that, the car would stall randomly on extremely hot South Florida days, and the MPG was terrible. After swapping my MAF with one from my friends car and seeing that the car ran perfect, I knew that the MAF was definitely the culprit. I messed up initially by buying a used "as is" OEM MAF from eBay because $100 later and I had another faulty MAF that was doing the same thing. This MAF cleared the issue up immediately however and my car is pulling strong again. As I have aftermarket headers, I still have a CEL light, however, using my BMM V2.0 reader, I no longer have a MAF associated error, so I believe this will clear your CEL if it is related to the MAF. If the MAF fails in the future I will update this review providing a timeline to failure. If it doesn't fail, then I will not update this review. Either way, if it lasts for a while, this $30 part is already performing better than the used eBay part so it is definitely worth the try if you cannot afford the original $350 part at this time.

Works just fine had lean codes before, and couldn’t pass emissions, no longer have any issues, works with no fitment issues so far after 3 weeks

I needed a new MAF sensor for my 2005 BMW 330ci. I ordered this one and installed it. It worked great for only one day! I ran my codes and it needed to be replaced again. Good luck!

Bought it on a whim as I was seeing odd mass air flow numbers, sure enough popped it in and she started running like new and not throwing any codes. Have driven about 20 miles on it to test things out and it seems pretty decent for the price so far, we'll see how long it lasts.

Funcionó excelente, sin problemas, el viejo estaba dañado el hilo. Quito luz de check por MAF error

Replaced multiple parts due to “high emissions” on both banks (vacuum hoses, intake boots, etc.) and wanted to give the MAF a try. For such a low price, throwing parts was not a big deal. We’ll see the longevity, especially compared to OEM. For now it works well!

No bad for the price

Plugged it in and seemed to work fine. Started to get misfires in high gears. Was thinking there was a problem with PCV or vaccum since MAF was just replaced but unplugging MAF (Reverting to fuel mapping) fixed the issue. Leads me to beleive it is poor quality or I got a faulty unit.

It hasn't worked since I first installed it.

I bought this MAF for my 2004 BMW X3. When i installed it i started having transmission problems which i did not associate with the MAF. I talked to my local BMW shop and he says that the transmission gets some signals from the MAF and getting them properly. I had not idea that this new unit i bought would do that. Anyways got a OEM one and all the problems went away. The kick in the pants was by the time i figured it out my return period had expired and they won't accept a return. Now I'm stuck with $100 piece of junk. DO NOT BUY.

Well built but would not work for my BMW 330ci