996 C4S sunroof drain

Good day all! I have a sunroof drain leak in my 02 C4S. It's the rear passenger side drain which is either broken or clogged. For the life of me I can't see how to access the drain from above (with the roof open) and I can't locate where to access it from under the car. I've searched for advice online but I can't find a video which helps and the only posts I can find have a confusing schematic showing where the drains are, but I can't translate that into real life... Can anyone help me with what I need to do to be able to unclog this drain? Thanks!!

this is one of the solutions but not the entire solution, as it's very much a front specific solution For your rear passenger-side drain, I would not assume the same exact access point or route, but it does support the bigger point that before you go hunting endlessly for an under-car drain exit, it is worth proving whether the rear drain is actually blocked, or whether the tube has come off or split somewhere further down. Y Thread '996 Coupe Sun Roof Drain leak at pipe connector' 19 Mar 2022 ***SOLVED*** PLEASE READ ALL THE THREAD AS THERE IS SOME INCORRECT INFORMATION EARLY ON THAT GETS CORRECTED LATER. Hi all, I've been fighting with a leak into the passenger footwell recently and today took the time to get the car jacked up, wheel liner off, interior trim stripped back and have a good look. The problem is the nearside front passenger footwell gets wet when it rains. The car is kept on the drive, which slopes to that corner, so I suspect the rain water is pulled to that corner by gravity. Things I have tried: - replaced sunroof seal - wiggled strimmer cable all the way... youngsyr Replies: 35 Forum: Porsche 911 996 (1997-2005)

I've just done exactly the same thing on my C2 In my case the actual drain tube was clogged so when it rained it pours out at the plastic fitting that the hose pushes on to. The drain exit is in the rear arch , I think you've got to take out the liner to get to it and that means removing the silencer but let me confirm that and I'll get a photo for you. I used my air gun pushed up the outlet (rubber boot) and blew out whatever it was, I think it was a spiders nest.

Some people find the drain tube/hose is split but mine was fine only when refitting I put a small cable tie around it as it was not going to be as tight as it was from the factory. Access to that requires removing seat, trim etc on that side and then releasing the headlining..it's a bit of a job.

@dpg123 If it’s the rear passenger sunroof drain, I’d start from above at the sunroof cassette rather than hunting underneath the car. The rear drains run down the rear quarter / C-pillar area, so there usually isn’t an obvious under-car access point to work from. I’d put a small amount of water into that rear corner and see whether it drains away properly, backs up, or ends up inside the trim. If it looks blocked, try clearing it gently with nylon line or very light air pressure. If it is still leaking into the car, I’d then be thinking rear quarter trim off to check whether the hose has come off or split.

Thanks for the replies! I can't locate where the drain is if I am working from the top. With the sunroof open should I be able to see it?

No you can't see it, you have to remove the headlining but don't do that until you've tried back blowing with an airline. Do it with someone looking at the cassette to see if any stuff comes flying out.

Forgot to take my camera but the drain outlet is a rubber sock with a pinched end and it sits right behind the silencer heatshield , (that's the one that's a big plastic frame.) in the top of the wheel arch.

Here it is with back wheel for reference and the studs for holding the big heatshield