Just recently, I have noticed the front driver's side carpet wet after a rain shower. The car is parked. I have water pooled on top of the rubber floor mat and the carpet underneath is wet. I have checked the drain plugs on the left and right side under the windshield plenum and they are clear and draining properly. The front passenger side carpet is dry. Any idea where this water intrusion is coming from on the front diver's side?

 

Hi. Give this a look see.Page 3 should address the likely cause.

 

Thank you Sean. This is very, very helpful in narrowing down things. Greatly appreciated.

 

Check to see that the sunroof drain lines aren't clogged. There should never be standing water in the sunroof gutter.