Is the rear screen washer in the high level brake light supposed to have an adjuster in it - the sort of thing you can put a pin in to adjust the aim or is it just a hole? The water from mine pretty much misses the rear screen altogether and I can't see anything to adjust. Maybe put a blob of glue on the inside of the hole to re-direct the flow? Is the outlet replaceable of us it part of the whole high level brake light?
Old post I know but to cure mine I removed the cover to get access to the brake light bulb then packed out the actual washer unit to angle more towards the screen. RS 175 Cup Lux
Think I used a cable tie slipped behind the jet. Enough to bring it back into target. Will check later RS 175 Cup Lux