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04-23-2015, 11:44 AM | #67 | |
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04-23-2015, 12:56 PM | #68 |
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Agreed, if the point of the spare is to leave in the garage unless going on a road trip, well on a road trip you need the most amount of space in your car for luggage and stuff and this takes up a very large chunk of the space available for luggage...
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04-23-2015, 12:58 PM | #69 | |
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As I said I had a sidewall burst after hitting pothole with those, and got rid of them immediately as I didn't like the noise, wet roads grip... etc. Now, my winter tires are Dunlop RF, and I hit several potholes this past winter, few quite hard - no issues. My summer setup is non-RF Bridgestone. Just last night I hit the pothole so hard that I'm going to have to bring my slightly bend rim in for repair on Monday, but tire held up well (from what I can tell by inspecting on the outside, we'll see how it goes on Monday). I'm convinced that Goodyear LS2 wouldn't have survived the hit last night based on previous (and other owner's) experiences. |
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04-23-2015, 01:45 PM | #70 | |
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Last edited by The X Men; 04-24-2015 at 01:50 PM.. |
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04-23-2015, 03:33 PM | #71 | |
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04-24-2015, 10:47 AM | #72 | |
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But I'd assume the spare set for the M5 should fit the 550i.
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04-24-2015, 10:56 AM | #73 | |
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After my experience with their service on another post. I have also decided to move away from BMW as they seem to CON people away for their money.
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04-24-2015, 11:26 AM | #74 |
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04-24-2015, 11:33 AM | #75 |
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But I find front brake disc for the 550xi is 374X36mm
http://realoem.com/bmw/showparts.do?...23&hg=34&fg=07 While the 530xd has 348X30mm front disc. http://realoem.com/bmw/showparts.do?...23&hg=34&fg=07
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04-24-2015, 12:02 PM | #76 |
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04-24-2015, 01:24 PM | #77 | ||
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You will see that the grass ain't greener. At least with BMW you have a chance at getting medium and big issues resolved. BMW is better than any other manufacturer because they will address medium issues (not major, not minor). BMW fails to address small issues. That pisses me off. But, it's a concession worth giving up. |
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04-24-2015, 05:13 PM | #78 |
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So, interesting information guys and a bit of an update.
I spoke to my BMW service dept, and it certainly seems that there's an awareness to this problem. The initial response was, "we can only recommend what BMW recommends" - and then slowly that turned into, for lack of a better way of putting it... the truth. It seems that these tires have a very poor reputation, and there's an unusually high number of replacements that seem to occur. I needed no more validation - between this forum and that information. The LS2s must go, as they're obviously part of the problem. Perhaps Goodyear designed a tire that blows out easily just so the owner can see the "benefit" of riding on it flat? I joke obviously, but clearly they're easily injured. In doing some homework, I've also learned that rim damage seems to be more prevalent with runflats, in general, due to more of the shock being absorbed by the rim versus flex in the sidewall... which may explain why it seems BMW's rims bend so easily. I ordered a higher-end "slime" kit, and I plan to replace all of the tires with Michelin PSS tires that I've used faithfully on my last BMWs. My experience has been that tire blowouts (major sidewall damage) is extremely rare - in fact, I've never had it happen prior to this car in all of my driving "career." Most of the time, it seems, those few flats I've ever gotten are slow leaks due to a nail, screw, etc... which can be replaced easily with a kit like slime. So, I think that's going to be my move: 1. LS2s replaced with PSS 2. Slime kit in the trunk If the tire damage is worse than a puncture (which I can repair - slime kit also comes with conventional "plugs"), then I'll need to rely upon roadside assistance - but today I need them anyway. The conventional tires will mean I need to pull over for a flat, and it's not a perfect solution by any means, but I went 7 years prior to the 550xi with this setup with zero problems - in 14 months with the 550xi, I've had two blowouts - so I have to believe going to this setup will probably be a decent balance of risk/reward. Also interesting to learn, BMW (along with Honda) have both been sued - class action lawsuits - over runflat tires. The BMW suit was paid out by Bridgestone and BMW - wonder if Goodyear may be next, and perhaps this is why I've STILL not gotten a reply from BMW Customer Service? And lastly, I got thinking about the weight savings claim for better mileage. Maybe someone can shed some light on this - but if each RFT is heavier by around 6 - 10 lbs over their non-RFT counterparts, this could easily be 25 - 40lbs of additional UNSPRUNG weight (the worst kind) - seems to me there would be no real weight savings over conventional tires with a space saver spare... and even makes me wonder about the gas mileage claim, as I'd rather have the weight shifted to sprung weight with a spare in this case?
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04-24-2015, 10:20 PM | #79 | |
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I see you're trying to find the ways to keep the car after all, good to hear. When I complained about RF tires, no spare or "low battery" warning during cold days to a co-worker, another BMW owner, he came up with great line "look, think of it as super hot, incredible girl that you're dating that.... well... sometimes just snores loudly at night" No spare - not cool, low battery charge warning on cold days - not cool, but it's such a great looking car, fine mix of performance, space, comfort and luxury, well balanced vehicle that's not easy to just "ditch and move to something else". |
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04-24-2015, 10:23 PM | #80 | |
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Ironically, I have been driving with run flats since e66. Yet, the e66 had a full sized spare. However, I never had so many problems until LCI f02. Moreover, only 2 of the 5 flats were due to puncture. The rest were sidewall bubbles as a result of pot holes. |
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04-28-2015, 08:00 AM | #81 | |
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On top of that, the alloy has to be stronger because the tyre will transmit more of the force of hitting a pothole. Who knows how much extra alloy is required to make a rim as resistant to buckling or cracking when a RFT is fitted ? Another 6-10 lbs ? |
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04-28-2015, 04:38 PM | #82 |
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While run flats do presumably cause more damage to rims due the the more rigid sidewalk, I've been bending BMW rims since long before run flat tires . Can't say its only BMW though. Damn potholes I pay so much in taxes to encounter.
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04-30-2015, 07:29 PM | #83 | |
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Have you decided what's next if not the BMW?
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05-01-2015, 03:59 PM | #84 |
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It blows my mind that they're still selling BMW's with the LS2 run flats. People have been having issues with them since the F10 rollout in 2011. Maybe I read the forums too much, but it seems like you can't escape issues with those tires installed.
Mine came with the 19" Michelin Primacy run flats and (knock on wood) I haven't had an issue in four years. That said, I'll take the full size spare, jack and toolkit in my old E46 over the run flats any day of the week. Rough ride, expensive, no spare, same lousy wear as a traditional tire, hard to find inventory, hard to install - this is progress? |
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