ABSOLUTELY, FOR SURE, POSITIVELY .... ALL 06 SPORT/PREM X5's....use 19 mm hex lug nuts ????
So that means that for some obscure reason the P/O (leasee) of my car changed 20 lug nuts to 17 mm....HARDLY LIKELY......someone is seriously mistaken
ps, I just went out and tried, 17 mm socket on wheel lugs..."check"
19 mm socket on KEYS of 36 13 6 773 191 "check"
It ain't me who is mistaken.......
Sorry guys....I havent the foggiest notion what's screwed up here...

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BMWCCA # 12660
14 GLK 350 M/B (hatefull POS gone)
05 CLK 500 AMG Cabrio
07 530xiT
09 Boxster