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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 06-20-2011, 03:15 PM
Calicoastin Calicoastin is offline
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Location: East Bay/Peninsula, California
 
Join Date: Jan 2009
Posts: 178
Mein Auto: 2003 E39 540i auto
What's the correct VW MAF p/n for a 2003 540i?

I remember reading a while back about the VW maf sensor working on the 99-up 540i. Does anyone know what the correct p/n is?

Thanks in advance for your help.
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  #2  
Old 06-20-2011, 03:18 PM
dvsgene dvsgene is offline
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Location: "Empire State" of Mind
 
Join Date: Sep 2002
Posts: 2,614
Mein Auto: 98 540i M62 3.15
Range Rover works too: B3130139283

Happy reading:

http://forums.bimmerforums.com/forum...d.php?t=911151
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  #3  
Old 06-20-2011, 08:57 PM
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bluebee bluebee is offline
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Location: San Jose, California
 
Join Date: Mar 2008
Posts: 21,270
Mein Auto: 02 BMW 525i M54 auto 130K
I simply did a /maf in the bestlinks to find this:
- Mass air flow sensor (MAF) & idle control valve (ICV) require periodic cleaning (1) (2) & buying a replacement MAF cheaper than the BMW MAF (RangeRover MAF) (VW MAF) (Hyundai MAF) & cleaning the throttle body (1)
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  #4  
Old 06-20-2011, 09:18 PM
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540 M-Sport 540 M-Sport is offline
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Mein Auto: 01' 540 M-Sport cdn, F355
I have read a considerable amount of information about use of the VW MAF. It is my opinion, based on that research (mostly from reading threads on the M5 boards) that it is best to use the factory oem Bosch MAF only. Several users of the VW MAF found differences in the read out of liter/minute flow of the VW MAF versus oem. Obviously the VW MAF works, but it is not optimal. If you are comparing a worn or malfunctioning oem MAF to a new VW MAF, the VW appears to work fine....but it will run better with the proper oem MAF.

If you want the absolute best price on the later style oem Bosch MAF, find the seller "germanautosupply" on Ebay. He sells the factory oem Bosch part with free shipping for $165.
I don't see him listing them right now, and oh, I see our sponsor has them for $170 with shipping on ebay! Find "eactuning".
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Old 06-21-2011, 08:45 AM
Mark@EAC Mark@EAC is offline
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Location: NW Indiana USA
 
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Mein Auto: e39 5
Yup you can buy one from our Ebay store as mentioned above. If you are not an ebay user you may also order it directly from our site.

http://www.eaceuroparts.com/catalog/product/418

This is a brand new Bosch part specified for any 540i built after 9/1998. Do it once, do it right and save the guesswork on whether or not your MAF is performing optimally.
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