Hi all so I had a water ingress problem which appeared sorted - sunroof drains and nav antenna.

Anyway I thought all was good until last week when I folded the rear seats forward to fit something big in and the carpet was wet under the passenger side? Any ideas where the source of a leak here may be?

My 2012 WM had a leaking passenger side rear door seal, it was repositioned or replaced under warranty. Only Range Rovers since 1988

Dan, This is weird, I have the same issue!.

I was also under the impression that I had cured my leak, after replacing the rear seal, Sealing the t/gate hinges & tow bar / bumper mounts, only to find some water in the rear well again.
However checking after heavy rain & hosing down, still dry?. Then lifting the the drivers rear seat, the carpet felt wet.

Investigating further I found the under felt wet. So my first thought was sun roof. But again hosing down & adding water to the channels with the sun roof open. However just normal draining through the tubes & No leaks????.

I'm at a loss where this is coming from, as I previously dropped the head lining & checked for leaks around the drain tubes.

Any further ideas??

Oh dear sounds like you are in my boat and I have checked the same - did you check the shark fin? Current stable:
2006 BMW M6
2007 4.2 V8 S/C FF
Gone:
2002 4.4 V8 FF

Not yet, but I might aswell.
The frustrating thing is that when I give it a good hosing down, there are no traces of any leak. But it's obviously getting in someone

How about the rear door seal as mentioned above? Current stable:
2006 BMW M6
2007 4.2 V8 S/C FF
Gone:
2002 4.4 V8 FF

That may be a good shout, as I found one of them hanging down a while ago (can't remember which side). So probably best to take off & reseal,