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      08-21-2011, 11:51 PM   #1
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Bmw M mobility tyre kit useless

So my RR tire got whacked by a nail this afternoon on the contact patch and got the idrive message that there was low pressure.

No spare in the trunk and no run flat...how much more inconvenient can BMW make this? Even my Honda has a spare donut. But instead of finding a donut in my trunk, I found this nice looking package called the M Mobility kit....hmm looked complicated and a pita, so I proceeded to call SOS. Tow truck would only tow to dealer and being that it was Sunday afternoon, dealers nearby were closed so they wanted to tow me to an impound lot to store my car overnight till next morning. I wasn\'t comfortable with that oh and the 3 hr window for the tow to arrive.

The m mobility kit was now looking very tempting. So I pulle the kit out and the manual, followed instructions exactly....attached the tube and compressor and proceeded to pump....I see the tire inflating...success, I thought to myself...I\'d be on my way in no time...right after I finished inflating the tire, I removed the air pump and plugged the valve stem. Sure enough, I heard the loud hissing sound and saw the yellow liquid oozing out of the hole in my tire...air came out and tire collapsed.

Isn\'t this stuff supposed to plug the hole in my tire? Wth is with this kit? Has anyone had success with it? Just annoying how I have to get a tow everytime I get a flat.

It also didn\'t help that theninstructions on the kit itself were all in German. If I didn\'t have the manual in my trunk, I\'d be lost.
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      08-21-2011, 11:57 PM   #2
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Theyve towed my e46 to my house then to the dealer the next morning a bunch of times, but that was back in ~2006
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      08-22-2011, 12:16 AM   #3
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Do you want runflats? And surprised you didn't know that there was no spare in the back.

Yeah, if the puncture is too big, it won't work. And it costs something like $70 to replace
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      08-22-2011, 12:17 AM   #4
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Seal fixes are temporary and only work if the puncture is small enough to maintain nominal pressure. It can't work on larger tears.

Remember, too, that using one of those fixes basically ruins the tire forever. I have used one of those products before. It sealed the tire, but after time, the coating dehydrated, flaked off internally. From then on, my tire would sound like a maraca as it rotated.
Disclaimer: This was on my first car which was not a BMW.

Solution:
A better tool to keep in your car is a small air compressor that can run off of your cigarette lighter. Next time you have a flat, you can fill it back up on the fly and buy yourself enough time to get to help without involving a tow truck.
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      08-22-2011, 12:19 AM   #5
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Aren't you suppose to pump it with the goo first then tighten the cap and drive off so the goo will rotate inside and seal the hole for a while?
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      08-22-2011, 12:24 AM   #6
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I agree, the "fix-a-flat" kit is a worthless POS. I think it is ridiculous that if I get a flat tire I no longer have the use of my car until it can get towed someplace and the tire patched.

I have been thinking about getting a donut spare tire, and before all the superstar track wannabe's come out and say "it will add weight to the car"...I don't care, I would much rather be mobile than stuck way out in the middle of nowhere. Not to mention, here in Germany, if I get a flat tire on a Saturday afternoon I can forget about driving my car until Monday at the earliest. They are not customer friendly here and they would likely tell me they could get me an appt. for sometime the following week
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      08-22-2011, 12:43 AM   #7
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Spare are usually cheap from a local recyclers. Either carry tools and jack too or just call roadside to replace the flat with a spare for you.
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      08-22-2011, 01:02 AM   #8
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Quote:
Originally Posted by Sean@PYSpeed.com View Post
Aren't you suppose to pump it with the goo first then tighten the cap and drive off so the goo will rotate inside and seal the hole for a while?
You beat me to it. That's exactly right. People should when they buy a car; just saying .

By the way, the best solution for a flat for me is a Stop'n Go tire repair kit. Already tested my 7-yr-old kit, and brought me home over 300 miles (at 80 mph), something no donut or runflat could have done. And I had TPMS and the safety of a full size tire. Can't beat that, but to each his own. A runflat can only roll 50 miles deflated, and collapses after 100. Plus only specialized shops can handle them. And nobody carries them in M3 sizes, so you're talking days with the car disabled. They're NOT for traveling IMO.
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      08-22-2011, 01:15 AM   #9
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^Yup, a Stop 'n Go is likely the best bet. I took one with me on my Euro Delivery trip, but thankfully I didn't need it. It's now in the trunk and will remain there for the life of the car. It's by far the best choice for travel. Now, if you shred a tire or the sidewall somehow, that's obviously a different story.
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      08-22-2011, 01:36 AM   #10
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Quote:
Originally Posted by piloto View Post
^Yup, a Stop 'n Go is likely the best bet. I took one with me on my Euro Delivery trip, but thankfully I didn't need it. It's now in the trunk and will remain there for the life of the car. It's by far the best choice for travel. Now, if you shred a tire or the sidewall somehow, that's obviously a different story.
Ok so I've already pumped the BMW stuff into the flat...hole is still there. Can I still use stop n go stuff to get me to the tyre store? Or is it unsafe to stack it?
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      08-22-2011, 10:36 AM   #11
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You have already discovered why these things are unacceptable (hope you don’t have to replace the pressure monitor too). I assembled a compact spare kit, which is strapped in place in the trunk, and still leaves more than enough trunk room for most purposes. I think it was about $500 total expense, including a BMW compact jack kit. IMO, it was money well spent. As for weight, good grief, is it a track car or street car? You can rip out the interior and it still weighs too much, so buy a spare and a little piece of mind.
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      08-22-2011, 11:41 AM   #12
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Quote:
Originally Posted by elh0102 View Post
You have already discovered why these things are unacceptable (hope you don’t have to replace the pressure monitor too). I assembled a compact spare kit, which is strapped in place in the trunk, and still leaves more than enough trunk room for most purposes. I think it was about $500 total expense, including a BMW compact jack kit. IMO, it was money well spent. As for weight, good grief, is it a track car or street car? You can rip out the interior and it still weighs too much, so buy a spare and a little piece of mind.
I agree that the weight of the spare shouldn't matter as you can always remove the spare when you want to. Keep it in for driving around town or long road trips. If you decide to go to the track or take a spirited drive, just take it out and leave it home.
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      08-22-2011, 01:47 PM   #13
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The kit worked for me. Did you leave the nail in the tire? Maybe if you yanked it out, the hole was too big for the goo to seal... leave it in.

As soon as I pumped up the tire with goo, I drove around the parking lot and it sealed the tire.
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      09-10-2011, 06:42 PM   #14
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where can I find one of the stop n go kits? I googled and found a couple different ones thx
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      09-22-2017, 10:28 AM   #15
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old thread revival - is the stop n go repair kit just the kit used to plug the tire, and not the compressor with goop? I see different versions. thanks!
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