In the US the headlight washers are dependent on the cold weather package. The idea is that the washer sprays water on the headlights to wash the salty film from the salt drenched roads. To activate the wash, your headlights must be on regardless if it is LED or Xenons. And it happens in sequences. Not every time I'm thinking every 3 spray or something like that.
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2015 F15 X5 35i Msport Space Grey M Performance parts MPPK, MPE
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