Hi, I posted a while ago about water ingress into our 2018 Octavia petrol 1.5, bought last July, forming a puddle round the spare tyre.

The dealer who sold it to us - not a Skoda specialist - is currently honouring their 6 month warranty and trying to sort it out. Clearly it's not fit for purpose if it leaks.

They've refitted the tailgate seal, having found & removed a piece of metal that was distorting it around the area of the catch, and certainly it closes better now. (See my earlier thread, linked below)

It seems to leak when just sitting there in heavy rain, judging from a recent torrential weekend when I didn't use it. They're having it back on Thursday this week to try again.
Any more useful suggestions for things they might try would be gratefully received, please, as I think they're short on ideas, though they've not yet tried the replacement vents suggestion made in that earlier thread.
(Would this be an issue when the car was just standing still rather than getting splashed from the road?)

In almost all other ways we very much like this car, but this water ingress really ain't good enough.

With thanks.

Tailgate window seal?

Take a look at teh rear wiper gromet between the wiper spindle and the glass - that's where our Kodiaq was leaaking - between the gromet and the glass.

Update, in case the information's useful to anyone else. I collected the car this afternoon. After much sitting in the boot while spraying it with water outside they spotted a trickle from the grommet at the top right near the hinge, presumably where wires would go if it were a LH drive. They sealed this, drenched the car again and found no trickle. So hopefully that's it.
They've carefully explained this is a temporary repair, and if it works they'll get the proper part and seal it in neatly.
And they're happy for me to continue monitoring next time it rains.

So we're hopeful we get a dry car, and end up writing a nice review for the Bristol St Honda dealers here who sold it to us.

Thanks again for all the suggestions made along the way.

I would be looking at whether the back window needs resealing - or whether the drain holes in the boot are blocked.

This has already been covered and its worth looking at this posting:

Thank you. If the work they've already done doesn't prove to have solved the problem I'll take a print out of this to the garage next time.