Tricky problem with windshield washer fluid leak
I have an odd problem that I thought was a failed/cracked headlight washer pump and has turned into a pain in the butt.
What I noticed: Low washer fluid light, washer fluid on floor under car. However leak is so slow I haven't been able
Did some searching: Lots of leaking problems attributd to cracked washer pump.
What I have done so far: Removed washer tank and confirmed it does not have a crack. Have looked at both washer pumps and they are working fine and don't have any visual indications of leaking.
Secondary finding: The passenger side headlamp washer is working BUT the driver side headlamp washer is not.
So my connundrum is this: is it likely that the leak is somewhere in the tubing between the left and right headlamp washers? There is only one tube coming into the washer fluid tank that somehow feeds both headlamp washers. I don't know and can't see if the tube "splits" at some point or feeds the passenger side washer first and then feeds the driver side. Logically, it can't be the other way because if the leak was at the driver headlamp washer there would be no pressure for the water to reach the passenger side.
If that is the case (leak in the line downstream from the headlight washer pump) how the heck to I find it? Or is the fact that the passenger side headlight washer still works but the driver side washer does not, is there another possible problem?
Any help would be appreciated. Being wintertime in Oregon, I need windshield wiper fluid. I am now travelling with a gallon of washer fluid in my trunk to fill up when it runs dry (which is once a day) and is a real inconvenience.
THanks,
David
2004 330i E46 with ZHP performance package and cold weather package