Damp/Wet Floor Driver and Passenger Sides

[BMW318i_]

As the title reads damp floor in patches on drivers side, passengers and rear passenger side (NOTE:Right hand side drive). It has been raining but no leaks from roof, seems to be water under carpet. The car is parked undercover and on flat ground. Please HELP!

[BryanR]

In my truck and my buddies jeep it was leaking down from the windshield. There was some holes/cracks in the weather stripping around the windshield.
Not sure if that's what is wrong with yours but may be worth checking out.

[motorwerks]

It's usually the drains toward the bottom of the A pillars being clogged, the drains in the sunroof being clogged, or a leak in the windshield molding.

[willysully]

:bigpimp:Could be a faulty/leaking heater matrix. Keep a close eye on your coolant level until you identify the source of the h2o.