I used these replacement bulbs on my 2010 and they worked great. BMW E70 X5 N52 3.0L > Lighting > LED > ES#258412 E70 LED License Plate Bulbs - Pair - E70T10W37KT

I originally tried these and they were way too bright.
6000K OBD LED LICENSE PLATE LIGHT LAMP FOR BMW X3 X5 X6 E70 E71 F25 | eBay

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