I need help. Does anyone know how and why water keeps leaking on my passenger side floor when it rains heavy or even a car wash. It’s not the sun roof drain.

 

Sunroof drains. Specific the firewall grommet. Very common. Not so common is the windshield leak. If you have not.personally cleaned the drains or replaced or resealed the firewall grommet it's that.

 

I had this issue. I changed the sunroof tubing to drain out of the condenser drain tube and resealed the firewall grommet. Havent had a problem since. If you do some searching in this forum there is a fix for just $15. That's the one I used and I've had no issues.

 

Just did mine. You have a lot more water than you know because the floor dips and there's 4 inches deep atleast and then foam there. Definitely pull the tube grommets.
I added a straw to help prevent future blockages.

 

I did mine a while back but I didnt use the factory grommets. I rerouted the drain tube to the ac condenser drain tube. It now drains under the car. I also used a clear silicone around the main grommet where all the wires are under the hood and havent had one drop of water since. I actually found a thread on here where it shows all the steps. Cost me $15 in parts from Lowe's. New clear drain tube and 2-3 plastic fittings and a few zip ties.

 

How do you search the forum for the $15 fix? Infiniti told me it was the door trim, cost a lot to replace and it stilk leaks.

 

try searching for sunroof drain or sunroof drain leak or passenger or driver leak.

Here is one thread i found, i am sure there are others, just takes a minute and some reading to get to where you want.

https://www.myg37.com/forums/showthr...errerid=369648