Torque for Lug bolts
#1
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Torque for Lug bolts
I changed my tires to winter tires yesterday and I forgot the torque for my wheels. I called my indie and he told me it was 100 ft-lb. I set my torque wrench and changed the tires.
I then checked this forum and there are multiple threads which indicated the torque should be between 85-95 ft-lb. I went to my garage, lossen all the bolts and tighten them to 90 ft-lb.
I am sure either 90 or 100 is OK but in theory, what would you do? Bring them back to 90 or leave them at 100?
I then checked this forum and there are multiple threads which indicated the torque should be between 85-95 ft-lb. I went to my garage, lossen all the bolts and tighten them to 90 ft-lb.
I am sure either 90 or 100 is OK but in theory, what would you do? Bring them back to 90 or leave them at 100?
#2
MBWorld Fanatic!
I would have reset mine to 90, winter or summer wheels.
100 was probably ok, particularly since you would be changing wheels again in 5 months.
In extreme cases of over-tightening the rotors can be adversely affected, as with my daughters Honda (130 instead of 105). But, it is also rotor (material and construction) dependent.
100 was probably ok, particularly since you would be changing wheels again in 5 months.
In extreme cases of over-tightening the rotors can be adversely affected, as with my daughters Honda (130 instead of 105). But, it is also rotor (material and construction) dependent.
#3
Senior Member
I wouldn't torque higher than 85 ft lbs. The lug bolts are fine thread and you risk stripping them if you torque too high.
#4
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Actually, my question is if you were me, after you torque the bolts to 100, would you re-torque them back to 90? Maybe the damaged has already been done.
#6
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#8
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There is a huge difference between 80 and 100.
Mis3's OCD served him/her well.
Reminds me that I have not checked mine since having tires replaced. Even the good shops used air wrenches that most often are not calibrated and techs who think pulling the trigger 2-3 more times after the clutch disengages the first time is a good thing (it is not).
Mis3's OCD served him/her well.
Reminds me that I have not checked mine since having tires replaced. Even the good shops used air wrenches that most often are not calibrated and techs who think pulling the trigger 2-3 more times after the clutch disengages the first time is a good thing (it is not).
#9
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2005 ML 270 CDI, 2004 E270 CDI, 2006 CLK55 AMG
If it were me, I would loosen all the lug bolts and re-torque them to the correct torque. Another "very" important factor is to torque them in the correct sequence, not around the clock like many people do at tire shops. This will also prevent rotor distortion.
Last edited by mrwhattie; 11-25-2015 at 11:43 AM.