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#1
08-14-2015, 11:32 AM
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At least my X5 has sensor in the wheels, which means it is TPM and not FTM. BUT, it doesnt have antenna for each wheel sensor. As long it have received signals from 4 wheel sensors it is satisfied. It doesnt know from which wheel each signal comes. It tells me if there is a pressure loss, but doesnt specify which wheel and the actual pressure and temp. This is like to to go to Rome and not see the Pope
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#2
08-14-2015, 12:09 PM
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Quote:
ETA: Passive transmitters are very low powered with low range.
__________________
Believe nothing read or heard without verifying it oneself unless it, Weltanschauung congruent, fits ones worldview. Last edited by Doug Huffman; 08-14-2015 at 12:29 PM.
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#3
08-15-2015, 12:28 AM
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#4
08-14-2015, 01:40 PM
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Well, mine never showed a malfunction since the day I posted. Knock on wood...
__________________
-------------------------------------------------------------------------------- LEV 2011 X5 xDrive50 Black/black////M sport pack/all options 2006 ///M3 Cabrio Gone but not forgotten 2003.5 ///M3 Gone but not forgotten 2007 Aston Martin V8V Gone but not forgotten 2007 Porsche turbo Gone but not forgotten 1995 540i M-sport(1 of 70) Gone but not forgotten
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#5
08-16-2015, 09:11 PM
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- intermittent error like this does seem to be battery related... TPM in one or more of the wheels are going out. I replaced all 4 with new as it's going to happen anyway, at the same time I got new rubber. Better than having to break the bead again to replace another TPM.
- Our X (at least the '08s) did not indicate which specific tire.
__________________
'08 X5 3.0si - Alpine White / Saddle Brown interior Specs: Sport Pkg, Premium Pkg, Tech Pkg, Comfort Access, Aero Kit, Style 433 staggered 20s on Conti DWS Mods: Carbon 35 tint, LED angel eyes, GP Thunder 7500k fogs, H&R 20mm/25mm spacers, clear reflectors, gunsmoke-tinted taillights Coded: Digital speedo, windows/sunroof/tailgate close via keyfob X5 pics at Flickr
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#6
08-30-2015, 05:25 AM
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Ok, looks like the "new" system is supposed to recognize each wheel individually, but it has never worked for me. Since I have the car for 2 years, the TPM has been working, but and sending a proper signalization when a tire is deflated. But wheels positions were never recognized and i couldnt diagnose which sensor was not working intermittently. For the last few weeks i have installed a rear right wheel from my parts car and when my rear left deflates slightly i get message "Rear right tire low"
 
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#7
08-30-2015, 10:01 AM
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The system in my 2011 X5 is not much more advanced than the RDC in my 2001 M5. Sure, the X5 has a pretty screen to look at if you have Navigation system but there's no interface and really no information displayed except that the system is 'OK.' That's about as much information I get with my M5 except for the pretty screen. You'd think 10 years of technological advances, a pressure sensor in each wheel and a 9" monitor would actually add something.
__________________
8/2011 X5 xDrive35d Sport, Black Sapphire Metallic, Black Nevada Leather, Fine Burr Walnut Trim 2/2001 M5, Jet Black, Exclusive Complete Black Walk Nappa Point Heritage Leather, Black Cubic Trim
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#8
09-01-2015, 11:12 AM
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Finally Autel TPMS401 sensor reader could be found for under $100 and it is worth every cent of it. Traced my intermittent working sensor for 1 trip, after struggling for 1 year.
Last edited by bawareca; 09-01-2015 at 06:49 PM.
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#9
09-01-2015, 03:59 PM
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__________________
8/2011 X5 xDrive35d Sport, Black Sapphire Metallic, Black Nevada Leather, Fine Burr Walnut Trim 2/2001 M5, Jet Black, Exclusive Complete Black Walk Nappa Point Heritage Leather, Black Cubic Trim
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#10
09-01-2015, 06:54 PM
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Quote:
 I also found they have universal TPMS sensors (obviously clone of the HUF ones) that are programmable for any car. Sensors are around $20-25 and the programmer ~$55. I plan to buy some and test them. You can directly clone any sensor with the serial #.
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