Thanks for that.bcworkz said:The suspect drains are for the windscreen cowl, where the wiper mechanism is. There''s two, main one's low on the left side (RHD) and somewhat obvious. The other is hidden, high and somewhat in the centre. For effective cleaning you probably need to remove the cowl cover. While it's off lubricate the wiper joints, and if you don't mind mechanical fiddling, clean the contact plate in the wiper motor.
No more slosh-slosh today, so n/s seems ok, but isn't it typical that the blocked side is the most difficult to sort! [thanks BMW

No he doesn't, he's got a liftbcworkz said:You may not need a jacking point, but your mechanic does to access the underside.![]()
