I have the same issue. I actually purchased new pumps twice. The first new one, after I installed, would not pump washer fluid so I returned it. I purchase another and installed it, and again, no fluid delivered to the windshield. I re-installed the old leaking pump.
Does anyone know if the new pump needs to be primed first? I have a 05 545 and I don't understand why either new pump works. I went to two different providers for the pumps and both website provide the same pump part number.
anyone else experience this issue?