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<E34 M5> Wheel Cover Bolts

To remove the wheel covers on an E34 M5 you'll need a 6mm 12pt driver.  BMW
refers to these as dodecagon wrenches (which actually means "a plane figure
with 12 angles and sides").  They're available from Snap-on Tools (stock
number FTSM6B) as a 3/8 inch socket driver for about $10 - $15.  Snap-on
calls them "triple square socket drivers."  (Certainly more descriptive!)

If you used a Torx or Allen wrench, without success, I would also replace
the bolts.  I believe they're aluminum and the points are pretty fine to
start with - they strip easily.  Trust me, I speak from experience.  In any
event, the bolts are pretty cheap and it's worth keeping some extras around.

Although the '91 and '93 wheels are the same, only the covers/inserts
differed, the '91 wheels with the functional 3-piece turbines use a longer
bolt (M6x30 versus the M6x20 bolt for the "twisting star" wheel cover).
Make sure you get the correct length.  Also be sure to use Locktite 242 on
the bolt.

Happy motoring!  

Louis Goldsman
E34 M5