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  #51  
Old 05-09-2017, 11:30 AM
Helocast63 Helocast63 is offline
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I replaced my runflats - much better

My 2012 335i came with Sportline trim and these 20" black w/red lip wheels, and staggered tires - Pirelli P Zeros. Summary - they were horrible, wore out very fast, and felt like car had roller-skate wheels !

I now use Sumitomo HRZ III non-RFTs...set of 4 drop shipped by TireRack was $567.00! Car rides much better.

I have one of those spacesaver tire/jack kits in the trunk.
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  #52  
Old 05-09-2017, 11:54 AM
Rebound Rebound is offline
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Quote:
Originally Posted by RockyM View Post
Good information here. I have both the slime kit and tire plug kit in the trunk. Thought of getting the spare but the prices are ludicrous. We don't venture off the beaten path much so it is worth that risk.
The tire plug kit alone is not enough. If you have all the items I listed, you'll be prepared. You will not need the tire slime, as there is nothing it can repair that the plug won't repair better.

I've used plugs as permanent repairs three times. Never had a problem. Ideally, you should have the tire dismounted and a vulcanized patch applied from the inside of the tire, so that pressure cannot possibly blow it out. But I've never done that.

Last edited by Rebound; 05-14-2017 at 09:19 AM.
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  #53  
Old 05-12-2017, 09:10 PM
Don Q Don Q is offline
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I just replaced my run flats on my 2012 328i with a set of Continental DWS06 what a difference, it rides smooth and quiet, I got a couple of cans of fix a flat just in case.
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  #54  
Old 05-13-2017, 03:52 PM
hoptu hoptu is offline
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hey fellow enthusiasts

New member on BMW #7
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  #55  
Old 05-13-2017, 03:57 PM
hoptu hoptu is offline
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flat tires

I always replace my run flats. I carry a small jack ;compressor and professional plug kit and most important a cell phone
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  #56  
Old 07-12-2019, 11:43 AM
RobertaZ RobertaZ is offline
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Michelin PS4 vs. stock Bridgestone RFT

I am about to go for the Michelins PS4s for my 2017 340i. What life expectancy (total mileage) should I expect for the Michelins?

I was never satisfied with the way the RFTs handled bumps, although on smooth roads they are quite good......then I guess any tires are good on smooth roads!
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  #57  
Old 07-12-2019, 12:07 PM
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Oaker55 Oaker55 is offline
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Quote:
Originally Posted by RobertaZ View Post
I am about to go for the Michelins PS4s for my 2017 340i. What life expectancy (total mileage) should I expect for the Michelins?

I was never satisfied with the way the RFTs handled bumps, although on smooth roads they are quite good......then I guess any tires are good on smooth roads!


I really wouldn’t expect more than 20k miles out of the Michelins. In reality, probably even less.


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  #58  
Old 07-12-2019, 12:50 PM
Autoputzer Autoputzer is offline
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Quote:
Originally Posted by RobertaZ View Post
I am about to go for the Michelins PS4s for my 2017 340i. What life expectancy (total mileage) should I expect for the Michelins?

I was never satisfied with the way the RFTs handled bumps, although on smooth roads they are quite good......then I guess any tires are good on smooth roads!
Your mileage may vary...

I currently have PSS's on my 535i, with a square set-up. I rotate them and I manage the pressures to get even tire wear. After 26k miles, I have an average of 4.8/32nds inch of tread left. I'll get them to 37k miles and be down to 3/32nds inch.

The back tires wear twice as fast as the front. So, if you have a staggered set-up, expect maybe 25k miles out of the rear tires and 50k out of the front ones.

The roads are flat and straight where I live, and I'm easy on the gas and brakes. I do flick the car around in turns every chance I get, usually hustling to make a left turn before the light turns red.

The PSS's came "round shouldered," with 8.5/32nds inch of tread in the inner and outer circumferential channels, and 9.5/32nds inch depth in the two middle circumferential channels. A trick to extend the life is to slightly over-pressurize them so that the wear in the two middle channels' "catches up" with the inner and outer ones.

High performance tires wear really fast when new. If you rotate them, make the first rotation stint about half that of the other ones. Ideally you want eight rotation stints over the life of the tires. So, with high performance tires make the 2nd and subsequent rotation stints the tire life divided by 7.5, and the first one half that. So, a 35k mile set of high performance tires would get rotated first at ~2.3k miles and then every ~4.7k miles after that.
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Last edited by Autoputzer; 07-12-2019 at 01:02 PM.
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  #59  
Old 07-14-2019, 01:53 PM
RobertaZ RobertaZ is offline
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Wow! Thanks for all of the technical stuff!

I don't know if I'll have the ability to rotate the tires so often, though. Are there alternate tires that would provide comparable performance that would wear a bit better? I don't put a lot of mileage on my cars and typically sell them at 50k miles, so it may be a moot point.

I also don't drive too hard, but I do like cornering quickly into turns.....otherwise, what would be the point of having a 340i?
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  #60  
Old 07-14-2019, 02:54 PM
Autoputzer Autoputzer is offline
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Michelin makes a "high-performance, all-season" tire, the Pilot Sport A/S 3+. It has a higher US DOT treadwear rating than the PS 4S, 500 vs. 300. The PS A/S 3+ is also a little cheaper. With A.I.R. (alignment, inflation, rotation), you should get 50k miles out of PS A/S 3+'s.

Michelin also makes "Primacy" all-season tires. However, they're not high-performance. A certain individual shredded a set of Primacy's with abusive driving habits. Decorum prevents me from naming any names, but her initals are "Frau Putzer."

Since you're in the Great White North, all-season tires are a compromise, not great in the summer and not great in the winter. All-season tire are even less great in snow when the tread depth is less than 5/32nds inch.

BMW sells reasonably priced winter tire and wheel packages, probably less than $2k. We're moving to the foothills of the mountains in 2021. Because of the hills and occasional snow there, we ordered our X3 with xDrive. Most BMW SUV's in Floriduh are 2WD sDrive's. xDrive cost us about $2k, but it will make our X3 "go" in the snow. I'm going to pay another $2k to get a winter tire and wheel package to make our X3 stop and turn in the snow. Winter tires are cheaper than body shop bills, and stopping and turning are how you avoid trips to the body shop. I figure I'll get a good portion of that cost back when I include the tires and wheels with the car when I sell it.




Rotating is easy. A shop, even a BMW dealership, shouldn't charge you more than $25 (US). The BMW dealership should also know to use a torque wrench, use the proper lift points under the car, and not to whack you front bumper on a curb when parking your car. Walmart's auto shop... maybe not. Seven rotations would be $175, less than the cost of one tire. Without rotation, you'd likely be doomed to have to buy two rear tires before 50k miles. Eight rotation stints would be optimal, but four would suffice. Four stints would take three rotations, $75.

Last edited by Autoputzer; 07-14-2019 at 03:00 PM.
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  #61  
Old 07-14-2019, 03:45 PM
BabyUnicornTaco BabyUnicornTaco is offline
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I have been considering these. They look mucho macho. https://www.walmart.com/ip/Cosmo-MM-...SABEgLHevD_BwE


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  #62  
Old 07-14-2019, 03:56 PM
RobertaZ RobertaZ is offline
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Quote:
Originally Posted by Autoputzer View Post
Michelin makes a "high-performance, all-season" tire, the Pilot Sport A/S 3+. It has a higher US DOT treadwear rating than the PS 4S, 500 vs. 300. The PS A/S 3+ is also a little cheaper. With A.I.R. (alignment, inflation, rotation), you should get 50k miles out of PS A/S 3+'s.

Since you're in the Great White North, all-season tires are a compromise, not great in the summer and not great in the winter. All-season tire are even less great in snow when the tread depth is less than 5/32nds inch.

I guess I could bring the car to my dealership and have them rotate the tires every few months. Should the front ones be rotated too?

I assume that PS4S tires are summer tires..... I don't trust so-called all-season tires in the winter. New all-seasons are okay for their first winter up here, depending on the amount of snowfall we get, but winter tires are a necessity on 3-Series if one wants to spend less time spinning wheels and more time in control of your car..

Last edited by RobertaZ; 07-14-2019 at 04:02 PM.
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  #63  
Old 10-08-2019, 08:18 AM
BMW Luc BMW Luc is offline
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All season Pirelli P7 run-flats

I am resurrecting this thread after doing some research on tires. Looks like I have a fresh set of Pirelli Cinturato all-season P7 RFTs on the newly acquired vehicle.

I was considering keeping them because they got decent reviews from TireRack. Since they are all-season and I live in Michigan I thought I'd give them a go for this coming winter. However, since many here are, and elsewhere, recommend getting rid of the Pirelli run flats I am considering selling these tires, and then getting a better set of all seasons.

Would a better route be to just get dedicated winter tires, and then buy a set of staggered Summer wheels/tires for the rest of the year?

The only problem in Michigan is the variability of the weather. I tend to put snow tires on in mid-December and take them off mid-March. Weather near the beginning and end of winter can be dicey and would that warrant dedicated Summer performance tires or maybe go to a non run-flat high performance AS tire?

Would a set of good all-season tires be adequate year round with the AWD set-up? Thanks in advance for any replies.
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Last edited by BMW Luc; 10-08-2019 at 08:19 AM.
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  #64  
Old 10-08-2019, 05:24 PM
BMW Luc BMW Luc is offline
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Update: my Discount Tire guy recommended that I dump the Pirelli P7 Cinturatp RFTs and buy a set of Continental DWS06s non-RFT all seasons. That was surprising because he is usually all about two sets of wheels and tires, one set being snows. He thinks that the combination of AWD with the Contis would be fine in most snowy conditions. Your thoughts?
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  #65  
Old 10-09-2019, 09:31 AM
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quackbury quackbury is offline
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We've gotten 3 seasons out of a set of DWS's, 2 on an X1 35i and the third on a REAR WHEEL DRIVE 340. They probably have one more season left in them. They are perfectly adequate for most snowy conditions, and stop and turn much better than the typical "all season" tires like the P7's. They are NOT as good as a dedicated winter tires, but on a really bad weather day the 340 would just sit in the garage anyway.
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  #66  
Old 10-09-2019, 12:20 PM
BMW Luc BMW Luc is offline
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That's great feedback, thank you. I am so tempted to go with a set of snow tires on dedicated rims and then get a set of staggered tires and rims to maximize the set-up, but I an struggling with that concept when there is such an efficient option with the Continental DWS tires.

Did you consider the Michelin AS/3+ tires as others have mentioned? I take it you are in a snow state from your response.
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  #67  
Old 10-10-2019, 09:52 PM
Powderchaser Powderchaser is offline
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I am going to buy some Blizzaks this winter NON RUN FLATS. My question is wanting to buy a mini spare ( I can leave it in the back of the car). I called Bimmer Zone and they quoted me approx $350. Is that the best place to purchase the mini spare? Do I need the jack kit from them or can I easily find a normal jack at a local auto parts center. Do you recommend the mini spare when compared to a patch-air kit?
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  #68  
Old 10-11-2019, 11:26 AM
Kestas Kestas is offline
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I shopped around and bought a used matching rim for $150, and a used matching tire for $50... a lot cheaper than the $350 minispare. It also gives me an immediate full sized tire in the event I hit a good pothole, which is a real possibility in Michigan.

Junkyards and craigslist are full of cheap minispares. I posted before asking which minispare would be a perfect fit for the 320i. I got no answer. Nobody seems to know which dimensions match up with other minispares. You have to match lug pattern, wheel diameter, offset, and maybe load carrying capacity. Otherwise I would have entertained the thought of buying a minispare.. But not for $350.

Last edited by Kestas; 10-11-2019 at 11:27 AM.
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  #69  
Old 10-11-2019, 02:13 PM
JeffDunes JeffDunes is offline
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For my 535i I repalced my run-flats with non run-flats and the improvements were all positive. I got a spare from Bimmerzone along with a BMW jack kit which was expensive but worthwhile as I had to use it when I was 500 miles from home so I could drive 125 miles for the correct replacement tire. I run 18 inch staggered wheels with Michelin A/S 3 plus tires from April through December and then I swap on Blizzaks on a 17 inch square wheels from December through March. If you deal with winter conditions you should run winter tires in the winter and summer or all-season tires the rest of the year.
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  #70  
Old 10-11-2019, 02:26 PM
Kestas Kestas is offline
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A month after I set my car up with a spare, I caught a nail in a tire!
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  #71  
Old 10-11-2019, 05:05 PM
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Nordique Nordique is offline
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My May 15 2013 320i factory-order sport package came with run flat performance tires--and now, with nearly 100,000 miles on the odo, I'm still running on run flats--and happily. A lot of my miles have been on mountain roads, going to three hikes a week since I retired eleven years ago. For awhile, I carried a mini compressor--but never needed it. In nearly 100,000 miles, I've never had an issue with run flats so I am sold on run flat tires. I've driven more than a few miles with zero air pressure but without any problems--though I do keep my mph a bit lower with zero psi. I think they are much safer than non-RFT tires. While I no longer do track days, I drive in a sporty manner, especially on our mountain roads, on roundabouts, on on- and off-ramps, always having fun!
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  #72  
Old 10-11-2019, 05:22 PM
Kestas Kestas is offline
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Where do you live? In SE Michigan the roads are littered with construction debris and metal scrap.
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  #73  
Old 10-11-2019, 06:15 PM
namelessman namelessman is online now
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Quote:
Originally Posted by Nordique View Post
My May 15 2013 320i factory-order sport package came with run flat performance tires--and now, with nearly 100,000 miles on the odo, I'm still running on run flats--and happily. A lot of my miles have been on mountain roads, going to three hikes a week since I retired eleven years ago. For awhile, I carried a mini compressor--but never needed it. In nearly 100,000 miles, I've never had an issue with run flats so I am sold on run flat tires. I've driven more than a few miles with zero air pressure but without any problems--though I do keep my mph a bit lower with zero psi. I think they are much safer than non-RFT tires. While I no longer do track days, I drive in a sporty manner, especially on our mountain roads, on roundabouts, on on- and off-ramps, always having fun!
How has your experience been with Driveguard? Also how much is your repair + maintenance up to 100k miles? My assumption is that your timing chain has not yet blown up, right?
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  #74  
Old 10-11-2019, 06:45 PM
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Nordique Nordique is offline
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Originally Posted by Kestas View Post
Where do you live? In SE Michigan the roads are littered with construction debris and metal scrap.
I'm very picky about where I live--since I prefer to live near the ocean and the mountains: Washington state where roads and highways are well cared for. Your experience may be different....
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  #75  
Old 10-12-2019, 11:30 AM
JeffDunes JeffDunes is offline
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Quote:
Originally Posted by Kestas View Post
A month after I set my car up with a spare, I caught a nail in a tire!
Same here!
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