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BMW 3-Series Run Flat Tires

2421 messages,  Last post on Dec 02, 2009 at 1:06 PM

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What is this discussion about? BMW 3 Series, Tires


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#1272 of 2421
Re: Why get a new tire after a nail? [actualsize] by Mr_Shiftright HOST
Aug 14, 2007 (11:16 am)
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Replying to: actualsize (Aug 14, 2007 7:44 am)

The tire experts tell me that if your monitoring system is not accurate, or if you are not paying STRICT attention to the pressures, you will experience premature wear and noise with RFTs.
 
I'm still inquiring from expert tire shops in my area (those who do high end cars, racing cars, etc) as to what's what with repairing an RFT---the do-s and don't-s.
#1273 of 2421
24,500 miles on my run-flats by rlatham
Aug 16, 2007 (3:33 pm)
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I have 24,500 miles on my run flats on my 2006 325i (non sport package). Everyone here is correct that the tires are obnoxiously loud early on (mine were loud at the 15k mark).
 
I haven't noticed, however, some of the other things that people on the forum have complained about. IE foul weather performance problems. I have a manual transmission which might be why, but I've found if you're patient and smart about where you're going you won't get stuck. I only had one evening where I didn't make it home in the car...and that's because someone traded a 2006 C320 4Matic into my dealership so I took it.
 
When it's all said and done though, I'm getting an additional wheel at the BMW dealership tomorrow and when I replace my tires next month, they will not be run-flats.
#1274 of 2421
Re: Why get a new tire after a nail? [actualsize] by dkg42
Aug 16, 2007 (3:50 pm)
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Replying to: actualsize (Aug 14, 2007 7:44 am)

My Bridgestone RFT's were replaced at 17K miles..they were noisy as hell. BMW split the cost as they were part of a "defetctive lot", so I paid $350 for 4 new EL-42's. After 4500 miles, one of the new RFT's got a smail nail in it, resulting in a very slow leak. BMW refused to repair it, so I had the tire replaced, at a charge of $232. The techs scored the rim , changing the tire so I demanded that the dealer refund the full price of the tire and they agreed to repair or replace the rim. What sucks is the mileage differnce between 3 out of 4 tires.
 
How do you rotate these?
#1275 of 2421
Re: Why get a new tire after a nail? [dkg42] by circlew
Aug 17, 2007 (3:24 am)
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Replying to: dkg42 (Aug 16, 2007 3:50 pm)

I advise front to back on the same sides IF all dimensions of the tires/rims are the same. I do not think the mileage will make that much of a difference. The same happened to me at 5K miles with a new tire and no issues up until 13K (all tires replaced). Also, my shop damaged the rim. I am amazed BMW dealer ruined the rim.
 
Regards,
OW
#1276 of 2421
Re: Why get a new tire after a nail? [circlew] by Mr_Shiftright HOST
Aug 17, 2007 (9:15 am)
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Replying to: circlew (Aug 17, 2007 3:24 am)

You have to be careful with the RFTs in taking them off and you need up to date tire equipment. You can't be using 20 year old machinery.
 
Also it's easy to break the pressure sensor, if say you have the sensor 180 degrees out from the point of where you are breaking the tire.
 
So with carelessness and cranky old equipment, you can very easily wipe out the rim and the sensor.
#1277 of 2421
Re: Why get a new tire after a nail? [Mr_Shiftright] by be325
Aug 17, 2007 (11:11 am)
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Replying to: Mr_Shiftright (Aug 17, 2007 9:15 am)

I am very grateful to all who responded and are still responding to my original question: "...new tire and after a nail?." Thanks and we all are much wiser and more informed about practicality of Run-Flats.
RFTires are a fiasco except when your tire finds a nail on a narrow bridge and you have to continue driving or ruin the tire and often a rim with the regular tire.
I will visit showrooms where good cars are sold with regular tires.
Thanks again.
#1278 of 2421
Re: Why get a new tire after a nail? [be325] by cdnpinhead
Aug 18, 2007 (4:44 am)
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Replying to: be325 (Aug 17, 2007 11:11 am)

If you lease, you can take the RFT's off & replace them with real tires sooner rather than later. Toward the end of the lease the GFT's will be well worn & you can put the nearly-new RFT's on for the return ceremony. You would have had to replace the original tires at some point during the lease anyway.
 
If you buy, do the same thing & sell the RFT's on E-Bay. Even with RFT's & no dipstick, the 3 is still at the top of my list if I had to replace my car tomorrow.
#1279 of 2421
Re: Why get a new tire after a nail? [be325] by adethier
Aug 18, 2007 (7:03 am)
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Replying to: be325 (Aug 17, 2007 11:11 am)

check out the new audi a5 -- it has a spare and is a 'looker'
I haven't yet driven it as it is not in showrooms until next month here in california. However, this might just be the car to get me to switch from BMWs... at least until they start putting spares/donuts again.
#1280 of 2421
Re: 24,500 miles on my run-flats [rlatham] by dt63944
Aug 21, 2007 (8:37 pm)
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Replying to: rlatham (Aug 16, 2007 3:33 pm)

You've gotten good wear on your RFT's. I only have about 4K on my 328xi but I purchased one OEM tire from Tire Rack just before taking delivery of the car. Some people recommend buying two and replacing both tires on the axle that took the flat. Seems to me if the treadwear is slight, it would be worth trying just one tire to see if the handling is acceptable. Speaking of handling, I do recall that their suspension is "tuned" for RFT's, so I think it would be a good idea to research further and check for any warranty issues that might transpire from switching to conventional tires. Good luck! Hitting a pothole with these RFT's is a jarring experience, as is what I consider to be above-normal road noise.
#1281 of 2421
Re: 24,500 miles on my run-flats [dt63944] by shipo
Aug 22, 2007 (4:48 am)
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Replying to: dt63944 (Aug 21, 2007 8:37 pm)

"Speaking of handling, I do recall that their suspension is "tuned" for RFT's, so I think it would be a good idea to research further and check for any warranty issues that might transpire from switching to conventional tires."
 
Warranty issues such as? Oh, yeah! If you replace your RFTs with GFTs then you won't be eligable for the BMW/Bridgestone tire replacement program.
 
The fact is that RFTs are heavier than conventional GFTs, and unsprung weight is still unsprung weight. The lighter the wheel/tire combination, the better the ride and handling will be, regardless of whether the suspension is RFT "tuned" or not.
 
Best Regards,
Shipo

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