Hi - I'm new to the forum and am looking for some help please...
After some recent heavy rain I noticed that the rear passenger foot well was very wet

The door card is also soggy with mushrooms growing inside it near the puddle lamp.
I've removed the door card to get it dried off but it's not obvious how the water is getting in. Other posts suggest that the sun roof drain pipes can clog and allow water into the foot well but I don't see how that problem can create water in the door.
The car is parked on the driveway which is virtually dead level.
Hope somenbody can give some useful advice
Thanks