[QUOTE=Qsilver7;

And the wheel lug bolts are slightly different depending on build date. Most e53s have a 19mm head (up to 12/05 build date)...but for a short build date period...BMW changed the bolt's head to 17mm (from 12/05-up). The length and threads of the bolts are the same...it's just the bolt's head that is different. Whichever side of the build date your e53 is on...the 17mm or 19mm bolts will work for any e53 wheel you mount. It's just this small head bolt difference that coincides with your lug wrench, too.
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I'll second that as my regular lugs are 19mm and the key for the locking lugs is 17mm. Throws off the guys at Discount Tires every time! Just another reason to carry a spanner lug wrench.

2002 X5 3.0 324,000 miles
2014 428i 27,800 miles

2004 325i sold at 123,600 miles
2001 325i sold at 66,000 miles

1970 Firebird - Under restoration