Quote:
Originally Posted by adc
Just a word of caution - at least on the E46 cars if I remember correctly, the 3 nuts that hold the front spring hat onto the tower brace need to be replaced every time (and they are expensive). The reason given was that BMW uses a special stretchable nut (the torque being very low).
I'm not sure if this is fact of myth, but I think if I went to the trouble of replacing the springs, I'd spring for new nuts (pun intended).
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Should be reusable, because the torque is so low. But definitely do NOT over torque it. It is expensive because it is a special BMW-spec nut.
On BMW service manuals, BMW makes clear of the nuts/bolts that REALLY need to be replaced, i.e. the bolts on the propeller shaft. Those nuts are actually torqued beyond yield (torque value + torque angle).