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  #1  
Old 08-28-2007, 03:50 PM
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HELP!! MASS AIR FLOW SENSOR DIY

HI ALL
just wanted to see if anyone knows how to replace the mass air flow sensor for a 2001 x54.4?
I asked the shop, apparently it is very simple, only takes about 15 mins, but I dont even know where the sensor is!!!!
any help will be great!!
thanks in advance!!
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  #2  
Old 08-28-2007, 05:40 PM
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In between the air filter and the engine. Has small wiring harness attached.



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Last edited by Zulu95; 08-28-2007 at 05:47 PM.
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Old 08-28-2007, 06:55 PM
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MAF clean/replace

Hi:

Check out this site for detailed (and I mean detailed) instructions on cleaning the MAF. http://www.louv.tv/cars/m5/MAF/

He uses an M5 as an example but the previous post shows you exactly where it is on the X5(on the left on the X5, on the right on the M5).

I had problems with my MAF and this site really helped. Give cleaning a try first and save some $$$

Good luck
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Old 08-29-2007, 12:24 PM
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THANKS ALL
I WILL TRY TO CLEAN IT THIS WEEKEND
HOPEFULLY I WONT BREAK ANYTHING
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Old 08-29-2007, 12:41 PM
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Before going all out on the cleaning, you might want to try an aerosol spray cleaner, thus minimizing the opportunity to break things. The Bavarian Autosport newsletter (http://www.bavauto.com/newsletter/20...ter.pdf#page=1)
has an rticle which may help. You just take off the MAF and spray this stuff in.
Maybe you should start with this and move on to more intensive cleaning if it doesn't work. Let us know.
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Old 08-29-2007, 01:52 PM
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  #7  
Old 08-30-2007, 12:59 PM
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thanks all
i cleaned the sensor, but the SES light came back on again, the code is the same code, so do i need to replace the sensor?
HOw much would it be to replace the sensor?
thanks
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Old 08-30-2007, 01:21 PM
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The bad news is they're pricey, the good news is they're easy to fit yourself as you will have discovered from the cleaning. Here is a quote from Pelican Parts http://www.pelicanparts.com/cgi-bin/...Air+Mass+Meter

This is for my 2000 X5.

Sorry the cleaning didn't work.
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Old 08-30-2007, 01:29 PM
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THANKS JIMBE

Do i need to get the whole thing?? i noticed when i was cleaning, the sensor is only that small part inside the tube, so just wondering they sell that seperately?
thanks
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Old 08-30-2007, 02:21 PM
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Good point, I imagine you could get just the innards but I never had to go that route; the cleaning worked for me, that and ensuring the whole thing was tightly bolted together.

You might try Vines as they seem to have a good selection of new and used parts. Their website is http://www.vinesauto.com/PartsPage.htm you can also phone them at 1-800-214-4839
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