So it has been raining A LOT here lately but no problems until today. Disco has been sitting for a couple days on a slight incline. Started out to the store and it starts dripping from above the driver side visor, leaving a wet spot on the headliner. I know these rigs leak from the sunroof but could this be from a bad windshield seal?

 

Probably still the sunroof. The headliner isn't really permeable so water will pool on top of it and flow to wherever it can before coming out at the edges. Mine used to run down the B pillar and soak the seatbelt.

 

X1 .............. if not attended to rapidly it'll also take a lot of time or cost replacing the headliner covering. Often the seal around the D2 roof to sunroof or the plastic drain cups leaking or blocked with ****e.

 

That's what I was thinking but wanted to rule out other possibilities before ripping into the overhead. Thank you, gentlemen, for your replies. Time to replace the sagging headliner as well.

 

If you have roof rails (I don't) they can often let in rainwater where the seal breaks down.

 

I did that job shortly after purchasing my 2004. There was a discoloured spot on the passenger seat and the PO said a wet towel left by his daughter made that. He insisted the sunroofs had NEVER leaked... well first downpour and it was raining as hard in the truck as outside!! I pulled everything out and reupholstered the headliner. My problem was the two plastic boxes where the drain hoses attach. Also it is good to note that there are only two drains per sunroof, both in the front. Don't park on a massive uphill. I got the covering kit from Headliner Express in Florida. Owner was very helpful and they have covering material wide enough for the D2. (apparently it's wider than most headliners)