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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 03-17-2010, 04:16 AM   #61
kuksul08
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Originally Posted by mkodama View Post
I'm in the boat of believing no true endurance limit exists, and some materials just last longer and are better suited for the job than others.

*now miles goes off on tangent of wondering why more cars don't use air springs...*
...because air has a fatigue limit. Try this simple experiment: Place a paper bag over your mouth and exhale. Repeat the respiration process with the same air.

See, you get fatigued.
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Old 03-17-2010, 04:23 AM   #62
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...because air has a fatigue limit. Try this simple experiment: Place a paper bag over your mouth and exhale. Repeat the respiration process with the same air.

See, you get fatigued.
Here is a more scientifically correct one that applies to only you; instead of a paper bag, use a plastic bag, and instead of your mouth, substitute with your head. Make sure to tightly duck tape the bag around your neck region to reduce sources of error.
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Old 03-17-2010, 04:25 AM   #63
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Here is a more scientifically correct one that applies to only you; instead of a paper bag, use a plastic bag, and instead of your mouth, substitute with your head. Make sure to tightly duck tape the bag around your neck region to reduce sources of error.
you are evil


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Old 03-17-2010, 11:04 AM   #64
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e30, e36 and e46 rear springs crack the same way - nothing new - aftermarket is the way to go.
ask any e36 owner :-)
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Old 03-17-2010, 11:08 AM   #65
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I know that?

Maybe you're not reading my post correctly.
I misunderstood!Myself! OP, FYI; The UUC V2.0 springs are only $325 for a set of 4!

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Old 03-17-2010, 03:54 PM   #66
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I misunderstood!Myself! OP, FYI; The UUC V2.0 springs are only $325 for a set of 4!
lol, H&R springs are $115 less for a set of 4 and I think Eibach are like $75 less. H&R and Eibach actually makes their springs, unlike UUC who has some other company unnamed make them.
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Old 03-17-2010, 04:58 PM   #67
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In to see BMWNA's response to OP's e-mail. Pretty sure you're out of warranty by now, so the response should be amusing.

How about all the other things that break? Are you crying about those too? Window regulators, camshaft position sensors, sunroof shade, these are not "wear items," but they still break. BMW will pay for them if you're under warranty.

Guess what? nothing lasts forever. Except me, of course.
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Old 03-17-2010, 05:23 PM   #68
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If you're going to go through with e-mailing them, I'd approach it more as a safety concern, as it's not really a problem associated specifically with E46's

You may be able to get them to replace it if you approach it that way, just a thought

Good luck--if it doesn't work out, just pick up a set of H&R or Eibach springs as others have suggested, can't go wrong with either of those choices
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Old 03-17-2010, 07:39 PM   #69
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I have a replacement spring on the way. I would have went with the Eibach Pro Kit but hopefully I won't have this car for much longer.
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Old 03-17-2010, 07:42 PM   #70
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I have a replacement spring on the way. I would have went with the Eibach Pro Kit but hopefully I won't have this car for much longer.
What!? Did you email BMWNA at least?

I wanted to see their response.
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Old 03-17-2010, 07:51 PM   #71
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What!? Did you email BMWNA at least?

I wanted to see their response.
Hahaha! STS.
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Old 03-17-2010, 07:57 PM   #72
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damn never knew they can break.....i tried cutting springs before and it was a pain in the azz....kind of scary that it can just break like that...especially oem ones.
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Old 03-17-2010, 08:08 PM   #73
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What!? Did you email BMWNA at least?

I wanted to see their response.
Yes I e-mailed them, I am awaiting a response. For safety reasons I wanted to replace the spring right away, that's why I ordered a new one. Honestly I doubt this will get anywhere but I will post their response.
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Old 03-17-2010, 08:15 PM   #74
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Keep us posted!
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Old 03-18-2010, 10:52 AM   #75
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So every single metal item on a car that "moves" is expected to fail?

Move along apologists.
Apologists? Are you serious? What does this even have to do with BMW? Any piece of moving metal will fail, it just depends on when. Thats basic science, it has nothing to do with BMW. Just because you got scared by a spring that you feel should never break, we're apologists?
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Old 03-18-2010, 11:03 AM   #76
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Just did my suspension too and found my rear spring looked just like your. The car now had Bilstein sports and the Eibach pro kit. My last two cars also broke their rear springs and were replaced with after market springs. Neither of them was a BMW.
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Old 03-18-2010, 11:21 AM   #77
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hartman you just like to make a fuss don't you? A broken spring like yours is NOT a safety issue, you big girlie!
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Old 03-18-2010, 10:50 PM   #78
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hartman you just like to make a fuss don't you? A broken spring like yours is NOT a safety issue, you big girlie!
Yeah I'm a big drama queen. I mean, when a spring breaks in two places, reducing the overall height of the spring by over an inch, it really isn't that big of a deal.
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Old 05-07-2010, 02:23 PM   #79
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Does anyone have any non sport/stock rear coil springs for sale? I need a pair for a 1999 323i sedan. Any help would be appreciated!
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Old 10-15-2013, 08:38 PM   #80
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I just had tires replaced at 68K miles. The drivers side front was prematurely worn on the inside.
Root-cause was a broken passenger-side rear coil spring. It broke at the bottom last rung.

I ordered a replacement on-line and it has significantly larger gauge coils.
Is this the difference between the Sport and non-sport suspension?
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