08-26-2015, 02:42 PM | #23 |
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What compressor and air tank do you use? My compressor is 15 years old: I am thinking of getting a new one.
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08-26-2015, 08:03 PM | #24 | |
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My compressor is about 10 years old, it is a Michelin 130psi 2hp compressor with an 6.5 gallon tank I purchased when I renovated my house.
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08-26-2015, 08:12 PM | #25 |
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I don't think Michelin still sells compressors either. It looks like I will have to do a bit of research on compressors. Thank you.
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08-26-2015, 08:47 PM | #26 |
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If you want some onboard compressors Check http://store.arbusa.com/Compressors-C9.aspx , just in case your M needs some air on the go
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08-26-2015, 09:54 PM | #27 | |
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08-26-2015, 10:04 PM | #28 | |
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I'm unsure but you can probably go to your dealer and tell them to adjust the pressure reading so it doesn't give off a false positive aka lower the computer to warn you. My 328i has given me 2 false positives and I finally had them adjust it to about 32 psi so they stop giving me dumb false positives.
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08-27-2015, 06:01 AM | #29 | |
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08-27-2015, 06:03 AM | #30 | |
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08-30-2015, 04:45 PM | #31 | |
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08-30-2015, 04:49 PM | #32 | |
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When they take your car to the back to check on the tire pressure, they apparently can adjust it so the car's computer will warn you a bit later if the pressure changes. When it happened the 2nd time, he automatically did it for me and I didn't even ask. The original pressure warning for my 328i would give me a warning if anyone of my tires were off by just 1 psi. And it happened during winter from the temperature changes. Said there wasn't anything wrong with my tires, just the computer being overly sensitive and warn happy about stuff. I remember him telling me he made it so the computer will warn me if the tires were actually in trouble, so a lot of a lower drop in psi. I'm certain he said around 32 psi was the limit for my 328i atm.
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08-30-2015, 05:21 PM | #33 |
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Interesting, I wonder if it's something we can code with Esys or ISTA... Thanks.
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09-08-2015, 07:59 AM | #34 | |
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09-08-2015, 10:44 AM | #35 | |
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Last edited by aboulfad; 10-12-2015 at 11:34 AM.. |
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09-16-2015, 06:02 PM | #36 |
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I got another warning again, weird too on the same expressway! I made it downtown to find one tire off by 0.5 psi. Seriously! Everytime I get it my heart drops thinking I had a flat... I will mention it to my dealer to see if something can be done about our stupid sensitive FTM.
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09-17-2015, 01:00 PM | #37 | |
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09-17-2015, 05:23 PM | #38 | |
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09-18-2015, 10:47 AM | #39 |
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I am only going by impression here, no hard technical evidence, but I would say 5~10psi would normally be needed to trigger the alarm IMHO.
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09-18-2015, 04:14 PM | #40 | |
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YMMV in the F8X but, yeah, would take a lot more than a single psi change to set off the sensor (or they would go off daily in the winter when temps fluctuate)
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09-18-2015, 04:19 PM | #41 | |
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OK at the risk of asking a 'dumb' question, why don't they come with TPMS? Are the TPMS sensors inaccurate in extremely low temps or is it the huge range in temps from summer to depths of winter where they loose calibration/accuracy?
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09-18-2015, 04:27 PM | #42 | |
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no, nothing to do with temperatures (the populated parts of canada arent actually any colder than the northern parts of the US of A and the temperature swings are just as big there as here)...but you are from houston, and i know lots of people from houston for who dont get the 'seasons' and 'snow' thing so you get a pass..... Mostly just not a government policy to mandate them here (like you have). As for why not, i gather it is just costly, technical and most manufacturers would rather not include them than include them. There has been no big consumer push to include them so....they remain not standard.
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09-18-2015, 04:36 PM | #43 | |
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Ha - I don't get off that easily I'm afraid - Born and raised in Dublin Ireland so definitely in tune with 'seasons' and miss them in a big way - we have two here hot and frikken' hot
Yeah it would not make much sense for BMW to test these in extreme conditions so right after I posted I realized was not my smartest contribution Have taught courses up in Fort McMurray where it was -55F and the wind would take it 5-10 lower - pretty extreme Quote:
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09-18-2015, 04:45 PM | #44 | |
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Last edited by aboulfad; 10-10-2015 at 08:10 AM.. |
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