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General Car Chat / Re: washer non return valve
« on: 21 May 2025, 12:25:04 »On the XE, from memory, there is a valve with a spring in which should shut off the feed to the headlight washers unless there is pump pressure (so its a check valve), its part of the T-piece part.I'm guessing that part is too big for my XJ screen wash stuff - the T piece looks to be 5mm in, with 2 x 3.2mm out.
I know some have used a VW part to replace it with (281955187).
Maybe a good blow through with the air line might dislodge any crap or scale in there.