Technical Water under the driver's (left side) carpet HELP

[Latent]

Hello everyone,

I'm new to the forum, and seek for help is what made me join you're community... I'm on the brink of selling the car because of this single problem. 2012 12 Punto 1.3d, 2 door.
So this summer I started to notice quite strong smell of humidity. I checked under the main carpet in drivers side (left side) and everything under the carpet was soaking wet. I took everything apart, dried and search for possible reasons. Found on internet that common issue is drains under windscreen. And it was clogged in my situation, I cleaned it and I thought that was it. For summer it's seemed to be alright and I was happy I can assemble the carpet and forget about it. Now autumn came with more rainy days and the soundproofing foam near the firewall under the pedals are wet again. So water is still getting down the firewall under the carpet... I don't know what to do, thinking of selling the car ant the last hope for me is this forum. Maybe someone knows what could be the issue apart clogged drains under the windscreen ? Any help and ideas are welcome,

Thank You !

 

[Zardo]

WATER PENETRATION PASSENGER COMPARTMENT, FRONT AREA

1. Check for sealant on the windscreen (restore the sealant if faulty)
2. Check the windscreen. In particular, visually check:
   - the condition of the window glass;
   - flatness of support surface;
   - the flatness of the serigraphy. (replace the windscreen if faulty)
3. Check the bulkhead drains in the engine compartment. In particular check: for dirt, leaves etc. (Clean the drains if faulty. Restore correct installation if necessary)
4. Check the engine bulkhead. In particular, check:
   - the plugs are present;
   - the plugs are correctly fitted
   - the bulkhead coupling rubber seals are fitted correctly;
   - sealant properly applied;
   - correct installation (if faulty, restore the engine bulkhead installation and fastenings)

There's also an algorithm for FRONT DOOR WATER PENETRATION

1. Check the door seal
2. Check the fitting of the door. In particular, check:
   - correct alignment of the door - housing;
   - seal adheres correctly to the door
3. Check the moving window seal. In particular, check:
   - window closes correctly;
   - correct positioning of window channel;
   - correct fitting of glass scraper
4. Check drainage on the lower part of the door. In particular check: for dirt, leaves etc.

 

[Latent]

I found this thread https://www.fiatforum.com/threads/fix-for-water-in-footwell-rust-at-brake-servo.241678/
It's for grande punto, but I thing there is possibility that same scenario could be applicable for my 2012 punto. Will check it after work.