You checked the diagram for vehicles without headlight cleaning. The thicker one is for that. Nr.12

https://www.realoem.com/bmw/enUS/sho...diagId=61_1325

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E39 530dA -02 M-Sport Messing metallic
E53 X5 3.0dA -06 Sport Stratus grey
E70 X5 40d -12 M-Sport Space grey