Water in the boot

[BartSimpson]

Hello everyone,
I have seen some similar posts, but my case looks slightly different. This is why I am opening a new topic.
I have a leak in my trunk. I found it out when Iooked under the boot floor cover - there was water in the spare tire bay and the left side of the floor mat was wet. I replaced the left taillight gasket.
It does not leak that much now, but the problem persists. It does not leak from the under. There is a sunroof, but I do not think it leaks through there.
It leaks only when I use a hose and spill the water on the hatch.
The hatch has 2 metal sheets welded from inside - it somehow leaks through there.
https://www.youtube.com/watch?v=yHLlXxZCwgg
Any ideas? Change the taillight seal one more time?

Thank you,
Bart

[IllusionX]

Could be from the glass, or the boot "door" seal? Not sure where you are hosing down from.

Sent from my CLT-L04 using Tapatalk

[2bz]

No different than the other 200 posts about leaks. Everybody's Yaris leaks. If you want a Yaris that doesn't leak buy a Fit. Welcome to the club. :bonk:

[dogsridewith]

The tail light gasket may have relaxed. Only two nuts on one side snug it down...it needs at least three. I nearly eliminated major leakage both sides just by cleaning up everything and re-using original gaskets (No sealant added, but I MIGHT have lightly greased them...which I'm not recommending)
Check the nuts. My sense is that it is better not to squeeze the crap out of a brand new gasket, but rather snug it down incrementally over time.

[myfirstyota]

Basically the only downfall of this car. Leaky McLeakerson

[BartSimpson]

Hi guys,

I have already removed the tail light, cleaned it and applied silicone on the original gasket.
When I spill the water directly on the rear light it does not leak. It leaks when I spill the water above the rear light, at the top of the hatch.

In your case, when the leak was from the tail light - where did the water come out? Was it clear the leak is from the lights?

[lani100]

Hi guys,

I have already removed the tail light, cleaned it and applied silicone on the original gasket.
When I spill the water directly on the rear light it does not leak. It leaks when I spill the water above the rear light, at the top of the hatch.

In your case, when the leak was from the tail light - where did the water come out? Was it clear the leak is from the lights?

Run a silicone bead between the light and the car so you seal up the gap. This will guide the water away

[2bz]

Make new tail light gaskets. Use this:

https://www.michaels.com/creatology-foam-sheet-6mm/M10390268.html

[dogsridewith]

There is a joint in the overlapping spot welded tin where the gutter dumps rearward (above the taillights). I also cleaned up that area when I did the taillight gasket...but didn't add caulk or anything up there. The gutters themselves are smooth and crack free.
I still get dripping from the hatch raised some time after a rain, as if water got into it...starting to wonder about small shields at hatch top corners trapping water and letting it into the hatch through the holes for the clips.