Check this post out. Might help to replace the lock after you got it open.
http://www.xoutpost.com/bmw-sav-foru...-lock-key.html

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Current Garage
2003 Black 4.6is
2001 Silver 528i
2008 Civic Hybrid

Previous German
1994 740il----give it away for free
2001 X5 4.4---Trade
2001 325i-----Sold
2004 325i-----Sold
2006 330i-----Sold
1994 Audi 100-Sold
1997 Audi Avant-Sold
1996 Audi A4--Sold
2002 Audi A6--Sold
1999 Benz S320-Sold
2003 Benz E320-Trade