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      12-08-2023, 05:34 AM   #1
zoomnad
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Tightest lug bolts ever!!!

I had to check on the ABS sensor in my right rear wheel. What a surprise I had when I could NOT get the lug bolts off! My impact air gun could not (I have a 6hp 60-gallon compressor), and my 12" breaker bar could not, I needed a cheater bar of 24" on my 12" breaker bar! Plus, my weight (170 lbs.) to break them loose! never in my 57 years of car stuff have I seen anything like this! I have just bought the car because I always insist on tightening them with a torque wrench! I guess the tech thought this was a BMW TRUCK so he brought out the biggest impact gun!
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      12-08-2023, 07:28 AM   #2
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Not many mechanics use a torque wrench on lug nuts anymore, just hammer them on with an impact gun until they stop turning.
All the more reason to do your own work.
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      12-08-2023, 10:57 AM   #3
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Had some so tight that we used a breaker bar, a concrete block & backed the car up for force on the bar.
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      12-08-2023, 11:18 AM   #4
GuidoK
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It can also be corrosion. For sure if it's this stuck and done my impact, there's bound to be damage on the wheels as the bolts are conical.
I always put some anti seize on the lug bolts (and always torque to spec, never use an impact...)
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      12-09-2023, 03:51 AM   #5
zoomnad
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I always use a torque wrench but only use the impact wrench to unbolt them! The best I could find out on CarFax, the tires were installed before putting the car on the dealer lot! I never thought the Z4 would be perfect, and it is not, but when I am done going over it, it will be close.
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