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Old 11-18-2012, 09:37 AM
ard ard is online now
Resident Curmudgeon
Location: Sierra foothills, California USA
Join Date: Jul 2009
Posts: 15,646
Mein Auto: '12 X5 35d/E39M5/996TTX50
On other BMWs it is a hex (allen). I'd order spares just in case it strips. If it does strip just drill the head off, remove the rotor, and grab the 'now exposed' threads with a vicegrips.
Keep it as simple as possible...but no simpler.
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