Jimny boot filled with water after driving through torrential rain (pics inc!)

One other thought, do you have a rear wash wipe and does it work? Perhaps the rear washer is leaking, the pipe must be routed down the drivers side somewhere. Although I doubt the rear washer would cause that much water in the rear.

On the passenger side behind the rear bumper is a rubber flap about 8x3cm covering a rectangular hole, it’s to let air out when you close the door, if the flap is missing or stuck you might have got some water in there.

You can only see it with the bumper off unless you have a drain camera or similar.

Robin

I did think about the window washer, I remember reading about some people having leaks, but the water wasn't blue like my fluid and it ejects fine so no problem there. Interesting about that rubber cover, never heard of that before so looked it up. For anyone reading you can see it in this vid at 20m54s:

I want to go out and check the door seal (maybe try this talc idea) but it appears my aquarium may now be an ice rink!

Nice snowy scene, I expect to see polar bears soon.

Robin

The plot thickens. I went out earlier and jet washed the outside, trying to get into all the possible nooks and crannies. Sprayed all the boot door seals, underside etc. No sign of any water ingress.
However, I then checked the rear wiper and turns out my fluid reservoir is totally empty! Thinking back, I was parked on a reasonable incline for a few days (back of car at lowest point) - could be it all just slowly drained out the back? I know some people have had problems with this before and had to replace part no. 38496-61A00.
The thing is my wiper fluid is quite blue coloured, so I thought I'd be able to tell that's what it is. Needs more investigation but could be onto something...

The blue comes from the antifreeze (usually alcohol) and this evaporates out to leave largely water, when it’s left on a surface. It’s the same reason your washer jets freeze up if you haven’t used them for a while, the alcohol evaporates from the nozzle and then the water freezes.

If the contents of the washer bottle emptied in to the boot there must be a leak in the pipe somewhere, unless the faulty part you quoted is somewhere at the back?

Robin

The part you have quoted is a one way valve, it stops the screen wash from draining out of the pipe back in to washer bottle. If it is the cause of the leak it must have a split in it, from the inside of the pipe to the outside. If the valve wasn’t working then it wold just drain back in to the tank. I think it will be in the rear door somewhere close to the nozzle.

Robin