I have the same problem with my e53 also.

Drives side I can dial in to -0.5 camber with .1 tow
Passengers side can only get to -1.8 camber with .1 tow

I have already replaced the lower ball joint and will be replacing the wishbone once it comes in.

*HOPEFULLY* that can get me where I want to go.

bmw spec is -1.5 camber ( I think that is called the ultimate driving experience )

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2006 X5 48is Black / Black - LED AEs - FCAB - GAS 1.2bar cap