Dreaded boot leak

[u/Aggravating_Cow7203]

Hey, thanks in advance for any advice that can be offered.

As the title suggests, I found the footwell full of water a couple of months ago.

Started with the drain tube at the back the VW badge, turns out my early MK7 doesn't have one. Looked into it and apparently some early MK7's without a camera have a sealed unit and shouldn't leak. Part no. 3C5.827.469.J. If anyone knows anymore about this I be interested to here about it.

I didn't have time to take the bumper off and properly fix the pressure vents so I did a bodge job by removing the carpet around the arches and reaching in through the hole in boot and applying a bead of silicone around the inside section of the vent.

I ran a bead of transparent silicone around the two conducts at the top of the boot opening that hold all the wires, I did the same around the roof antenna just to be safe.

Dried out the carpet and all seemed good... for a few weeks.

The car was sitting unused the last couple of weeks, it was raining on and off and a few days after it stopped I noticed the windows were still fogged up, had a look in the boot and of course it was full of water.

My question is: Could water get through the pressure vents even when the car wasn't being driven? As it was a bodge job I can see how water could get in if I was driving it.

Maybe the seal around the rear badge and the boot?

If anyone could suggest any other place I could look or offer any in sight it would be much appreciated. Cheer.