The drain tube holes are usually located underneath the sunroof itself.
I have a leak in my car roof.
If there is a leak and the inside of the car smells like coolant a sickeningly sweet smell when it gets warm the heater core may have sprung a leak.
Another pretty big clue will be if your roof is completely rusted over.
They re equipped with drainage tubes that carry excess water from the roof down and then off your vehicle.
Check to see whether the liquid collecting in the car is antifreeze or water don t taste it.
However if you can see any bubbling or cracks in the paint along the sides that s where your leak is.
If you spot any rust near the roof sand it clean it with rubbing alcohol and maybe even use some touch up paint on top.
These fixed points can be perpendicular exterior walls a fireplace chimney or other components that extend through the finished ceiling to the attic space or roof surface.
If you open it all the way you should be able to see them.