Dear fellow Jazzer,
I was just about to post about the same problem.
It's been pretty damp down here in North-East Italy lately.
For weeks the car reeked like a wet dog.
Yesterday I decided I'd had enough, lifted the rear carpets (which were dripping at that point) and found the rear footwell had turned into a Florida swamp.
It took half an hour with Mr. Hoover to remove approximately four buckets of water from under the mat.
After another hour the swamp was back. So it just occurred to me: I opened the trunk, lifted the spare wheel lid, and lo and behold, the spare wheel compartment had turned into an Olympic swimming pool, and the water had eventually reached the top and leaked to the passenger compartment.
I removed the rear lights plastic covers and found that the INSIDE of the car was wet. Rain had been coming in down from above somewhere, then seeped through the bottom edge of the plastic cover inside the trunk into the spare wheel compartment, and then to the passenger foot well.
After researching the matter, the source of the leaking is probably somewhere under the two black rubber strips on the sides of the roof, next to the trunk. There is some factory-applied sealant there which has the habit of cracking over time, and when it happens, rain comes in and floods the trunk.
I will have the car inspected tomorrow, and I hope there's a way to fix this without disassembling the interiors (which would probably be the death toll for my old Jazz, it'd just be not worth it).
In other words, we may have the same problem as this gentleman:
http://www.beardmorebros.co.uk/website%20pages/jazz_leak.htmlAnyone want to chime in?