practically new 2015 XJL 5.0 Supercharged is having intense moldy smell from AC.

Anyone has this issue? Car only has 8k miles

 

Quite a common problem actually and affects all cars. Solution is also cheap and easy.

 

Social, since you most likely use your A/C most of the year, this would not be uncommon. In short, a little bit of mold/mildew has formed inside your A/C system. Like the video shows, spraying some of the Lysol into the intake will kill the mold/mildew and then re-open the drain to allow proper draining of the water from the inside of the car that collects while running the A/C.

In an absolute worst case, you may have to feed a metal coat hanger into the vent duct so you can get to the drain pan. From there, you will have to find the drain hole and push out the plug. Granted, if you are getting that far into things, you can also take some water with bleach in it and get it into the drain pan and let the bleach do its job.

 

I have run into this issue too in the past. One thing I learned to help stop it especially if you don't drive the car daily so fresh condensate washes through the coil is to turn the compressor off and run the fan only on full speed for 3 minutes before shutting down the car.

What that does is blows all the water out of the evaporator coil and dries it out. You will see a big puddle of water under the care when you move it.

This has worked well for me and I am in Florida where it is hot and humid.