To answer some questions:

Yes my indy erased all the codes and will read again on Friday when I bring it in but all the light came back on.

Also , I mesured the tread depth of all 4 tires: (pirelli scorpions ice&snow) 255/55R18

Both rear = 10/32
Right front= 9/32
Left front= 8/32

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His : 2005 X5 4.8is (SOLD)
Hers: 2007 X5 3.0si (SOLD)
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Retired:
1999 518
2000 323i
2002 M3 (beautiful car)
2003 330Ci