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over torque lug nuts

Discussion in 'E36 M3 (1995-1999)' started by yonsayvitch, Jun 12, 2013.

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    yonsayvitch

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    Good morning. After repair work and new wheel from body shop I could not remove the lug nuts. Took it to my mechanic who has a reverse torque wrench and took 200 lbs. to get them off. I do not feel anything wrong with the car while driving and under braking. Should I replace the lug nuts just for safety reasons? I have a 99 M3. As far as I know they a the original lug nuts. Never thought about it but should these be replaced under mileage or 10 or 15 years? Thank you for any info, Marcus.
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    steven s

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    I've replaced my studs after a few years but then again I'm swapping wheels a lot during the year.
    The threads look good? The thread into the hub with no binding?

    I might have been concerned about the rotor if they weren't evenly torqued, but it sounds like your rotor is fine.
    IDK. Me? I wouldn't bother replacing them.
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    yonsayvitch

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    The threads look good and no binding. The studs had 180 to 200 lbs. and about 200 miles on it before I found out. It all feels fine. Overly worried I guess. Thanks.
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    steven s

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    Looks like each bolt lists for $4.09 each.
    Piece of mind will cost around $20.00 wheel. :)
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    yonsayvitch

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    Will order today. Wouldn't want to see my wheel pass by me on the highway.
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    mrsbee

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    Sounds like you need to read my article from last months Roundel....
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    yonsayvitch

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    I received my first torque wrench many years ago from my dad along with a lecture on how to take care of it. Mainly for engine work. Not for wheels. Just read your article. Sounds like one of my friends. Always get a laugh watching him work on something.
    mrsbee likes this.
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    MGarrison

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    Paid lug bolt consultant? Or.... is that the going price for scraps off the brain surgeon's operating room floor?

    Well, uh - peace, out. ;)
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    Satch SoSoCalifortified

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    I'm with the replace-the-bolts faction. Now, it can take twice the torque to break 'em loose... but it shouldn't. And the ability of a bolt to hold has to do with streeeeeeetch. They will only endure over-stretching for so long. By the way, that's why you don't use Grade 8 bolts on wheels. They don't stretch; they tend to break instead.
    MGarrison likes this.
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    steven s

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    MSRP is around $4.00/bolt if I have the right p/n.
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    yonsayvitch

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    $4.95 from Bavarian Autosport.
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    steven s

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    I think you will find slightly better prices at the dealer.
    Look at any of the other Roundel advertisers.
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    CSBM5

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    MSRP is $4.09, BMW Morristown online parts site discounts them to $2.39.

    Good idea to replace them as you can't be sure if they were torqued beyond their elastic limit or not.
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    yonsayvitch

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    Fields BMW of Orlando is over $9. That's not right. Very rarely do I go there.
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    steven s

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    Does that include a buffet?
    I normally go to http://getbmwparts.com to see what MSRP is.
    Dealers can markup or discount to their hearts content.
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    109941

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    yonsayvitch

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    No buffet but they do have a nice assortment of coffee and ice cream bars. So that's $9 + tip. :D
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    mrsbee

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    Ice cream? Mr. Bee, we're moving. All my dealership offers is out of date newspapers and yesterdays coffee.
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    CSBM5

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    Wow, more than 100% markup from the MSRP. I bet they give you a "10% BMW CCA discount" though, right? ;)

    Let's see: from BMW Morristown online parts site, a set of lug bolts for the car is $47.80. At BMW of Orlando, the same exact set is $180. Hmmm...
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    mrsbee

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    You could always attend your local chapters monthly meeting and bring a wrench....that'd be free.

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