I've owned my 2012 Volvo C70 for three years and I love it. I live in Ventura which is in Southern California, and up until now we have not seen much rain. While cleaning my car last week I noticed the floor behind the driver seat was sopping wet! I have no idea where this water is coming from and my mechanic is booked up until Friday this week. I thought I would ask here if anyone has an idea where to look for leaks? Even parked in the garage and vacuumed with wet/dry vac doesn't seem to help. I come back an hour later and it is wet again! Help please! I really don't want my car to start molding! Thank you!

*I have been unable to find information on this topic in direct relation to the C70 hardtop convertible.

 

Sounds like Heater core leak. I've a 2001 c70 conv. Located under radio. It's a fairly easy fix. You'll have to pull plastic side panels, glove compartment to gain access. Here's a link that may help. If you take to a mechanic the cost is anywhere from $500 and up. It cost me less than $80 doing it myself.