TP monitor no problem on UK spec cars, they work on rolling radius and calculate a change in diameter rather than measuring the actual pressure. This is why you should still check you pressures weekly, if all tyres lose pressure together it won't flag.
I would guess they would fit. I'll have to dig out the link but all previous generation X3 & X5 wheels should fit, I have E53 X5 17" wheels for winter.
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