Issue: When there's heavy rainfall, there's usually a wet spot on the passenger side of my 2009 G37S. I was able to take this video of where the water is coming from. I took the plastic covering off from the passenger side and the water is on the right side of it. Last year, the leak didn't happen as often but this summer has been raining a lot and it's been pretty consistent. I tried to recreate the leakage by hosing down my car but I couldn't get the leak to happen.

I've read that it could be the sunroof but every time I put water down the drain, the water comes outside. I'm almost due for an oil change so I plan on bringing it up to the mechanic but I want to be able to explain where the leak is coming from. Any advice would be much appreciated!

https://reddit.com/link/1eyqfdw/video/q8285aa589kd1/player