Quote:
Originally Posted by bk335ilci
If this was so easy as just replacing bolts BMW would not have revised the whole unit. The new units are probably balanced for a new design with stronger bolts.
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The reason is probably because they didn't want shop techs trying to drill out the broken off bolt studs. Being that these failures are pretty rare, it was probably easier to just release the updated part.
If the bolt truly weighs 2 grams, it's probably aluminum.
See:
http://www.kamax.com/fileadmin/user_...ning_of_mg.pdf