OK so I know my Zed has headlight washers: Has a button, the little plastic covers on the bumper...but...   Has anyone ever seen them working, or footage of them working?   I've followed the instructions, (wipers on, lights on, press button) But I've never seen any over-spray bounce off the lights. I have however seen the "tears" that stream up the bonnet/front wings when driving in the wet - might just be rain patterns.   Who can prove they work!? (Pictures/video or it didn't happen)