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      01-07-2014, 10:00 PM   #1
RoadRunner///M
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Wheel Lug bolts life span

What is the life span of wheel lug bolts. Thinking 20-30 torquings combined?
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      01-07-2014, 10:23 PM   #2
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Why would they differ from that of a typical stud, which is good for the life of the car?
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      01-07-2014, 10:49 PM   #3
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Don't the threads begin to wear? ... esp when dealships over torque them!
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      01-07-2014, 10:52 PM   #4
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Dealerships will use a BMW torque setting. I've never found any of our three BMWs to have the lug-bolts over-torqued.
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      01-07-2014, 11:08 PM   #5
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Quote:
Originally Posted by ZIPNBYE View Post
Dealerships will use a BMW torque setting. I've never found any of our three BMWs to have the lug-bolts over-torqued.
You'r lucky. My dealer regulary over/under torques due to use of a rattle gun and not using a progressive star pattern tightening technique
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      01-07-2014, 11:37 PM   #6
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I replace my studs and lug nuts -- with which I replaced my lug bolts -- every couple of seasons. I'd do the same with lug bolts.

FWIW, an experienced track buddy once suggested that I perform an annual "lake test" -- throw 'em into a lake and only keep the ones that float!

Neil
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      01-08-2014, 12:07 AM   #7
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Originally Posted by MDORPHN View Post
FWIW, an experienced track buddy once suggested that I perform an annual "lake test" -- throw 'em into a lake and only keep the ones that float!

Neil


Yes, I'd suspect they'd suffer metal fatigue as well
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      01-08-2014, 01:02 AM   #8
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I bought some new ones after reading this:

http://www.m3post.com/forums/showthread.php?t=912729
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      01-08-2014, 01:34 AM   #9
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I'm using the Macht Schnell studs and according to this they recommend replacing studs after every race season, and the lugs every other season depending on use.
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      01-08-2014, 03:35 AM   #10
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      01-08-2014, 06:21 AM   #11
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Quote:
Originally Posted by Nugget View Post
I'm using the Macht Schnell studs and according to this they recommend replacing studs after every race season, and the lugs every other season depending on use.
I think it was 1Addict member @Drivehard who first reported his lug nuts developing stress cracks. I think IF you are doing HPDE its wise to replace them every year or two.
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      01-08-2014, 07:08 AM   #12
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Originally Posted by Dackelone View Post
I think it was 1Addict member @Drivehard who first reported his lug nuts developing stress cracks. I think IF you are doing HPDE its wise to replace them every year or two.
Thanks
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      01-17-2014, 02:06 PM   #13
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Quote:
Originally Posted by Ian///M View Post
What is the life span of wheel lug bolts. Thinking 20-30 torquings combined?
If you are tracking the car, replace them after every season. With that many torque cycles, I would put new ones on....just in case.
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