orclean1

Sounds like Chinese water torture

DOUGLAP1

I'm with this guy. But I finally gave up on finding the 991.1 that I wanted without a sunroof. So, now I am concerned this will happen to me one day.

Recently I opened my sunroof and tried to find the drain inlets so that I could blast them clear with compressed air, but I could not see any way to access them. On my old BMW sunroof car, it was easy to find the drain lines at the 4 corners of the sunroof and clean them out. I learned that lesson the hard way.

Does anyone know how to access the drains on a 991 to clean them out ? - I'm stumped.

zainr

Dear Kelly i have a 911.2 Carrera S 2018 and the same issue of water in the passenger well as you have mentioned can you please tell me the final issue what had happened and why water had collected in the passenger base .
my dealership is trying to figure it but cannot since the past 7 days so i thought i will message you and check and it wold help me please

my driver side is completely dry , the roof is dry the car just sat in heavy rain over 3 days and then on the 4th day i realized water filled to the tee

please help and mail me if possible on zainrrais@gmail.com

regards
zain

Jack F

Would be great to know for a quick maintenance blast of compressed air.

BOPE

Be careful using compressed air to clear a plugged drain tube.

Usually the drain tube is a rubber hose of some sort and if it's clogged with debris, shooting compressed in it may disconnect it from the drain nipple. The problem here is that the hose may end up in an unreachable abyss, never to be seen again.

Jason

zainr

DEAR JAKOB - WHAT WAS THE FINAL DIAGNOSE I AM IN A SIMILAR SITUATION AND WE TRYING EVERYWHERE TO FIGURE THIS AND THE SERVICE CENTRE JUST CANNOT FIND A SOLUTION TO THIS ISSUE PLEASE ASSIST ME TO WHAT FINAL DECISION THEY TOOK TO STOP THE WATER ENTRY

duxsi

Read cross post..
Deleted...

Porschejam

Zain,

I had this problem in a BMW, and once in a Boxster. Both times turned out to be blocked drains from the roof - once from the convertible top and once from the sunroof.

Grmcrckr

I had that issue myself with a VW. It turned out to be the AC drain hose that is supposed to drain condensation onto the ground was pushed upward into the car and was draining in my passenger side footwell.
The dealer had done it and blamed me. Check for the drain hose.

ZoomingBy

Blocked Drain on a 2018 is unlikely ...

As common as this issue seems to be - and only happens to passenger side - makes me think it is somehow related to the seal or drain on the Gas tank lid and the opening there ...

Worth checking into it

I just bought a 2019 991.2 C2S - hearing these sort of issues is a bit concerning!

Z

Tier1Terrier

I just spoke with a Porsche service advisor today who informed me that as part of their intermediate and major services on the 991 that they clear out the drains for the AC, sunroof, and body. Unfortunately they did not explain to me the precise steps they take to do so but obviously there is a known method for clearing these drains out. We need to figure this out somehow.

Bemo

Here is a good hack for you: a long zip tie...3-4ft. I've used it successfully many times on my BMWs to do the sunroof ones.

Jack F

Seems like no one knows where the drains are.

Porsche_nuts

Yeo, been trying to find out where they are for years. One of the grand Porsche mysteries!

Londonmark

So, On Christmas Eve, my windows steamed u when I parked the car after an hour drive following the audio stopped producing sound and the dash display said: "unknown audio source" and I discovered wet REAR carpet on my 991 c2s CAB. I left it alone yesterday whilst I ate, drank and was as merry as I could be knowing there was a problem with my car, but today I pulled out the rear seats which were dry underneath, the front driver's side (remember this is a RHD UK car) and the carpet which the 2-inch thick foam on the underside was soaking wet in the front and rear. It's worth noting that the upper side of the front was dry to the touch despite my feet being on it whilst driving yet the rear footwell was wet to the touch despite nobody having been in there in months. The worst part of it is that the amp which is under the driver's seat was wet. I have taken that out and I checked the passenger side which seems to be dry front and rear. The carpet is now hanging in the garage drying out.

The annoying part is I can't find the source of the water.

• I have checked with a hosepipe, both the drains under the clamshell each side of the rubber seal it sits on both side of the car. They were not blocked and there is no evidence of water coming-in directly under the rear seats.
• I haven't yet managed to get access under the metal base of the rear seats where there is more as yet to be identified electronics and which the rear wheels arches back directly onto.
• I have also checked the water is draining off the front screen in the way it is intended which seems OK as well.
• I have also used the hose on various seals on the front firewall without managing to produce a leak.
• The final potential culprit is the A/C drain which in a RHD UK car runs under the carpet from the top of the transmission tunnel down to the base of the floor pan in the driver's tub. It looks OK to me and I disconnected it at the top and blew down it and it was not blocked.

For now, I have left the carpet and the rear seats out of the car (its a bit like having a GT2/3 right?!) and I have run a barrier wall of silicone across the driver's tub from left to right of the car. We are waiting for Storm Bella tonight in the UK so I am hoping to see water accumulate one side of the silicone wall or the other to give me a clue to the source of any leak. Failing that, I am going to drive around with the A/C on to see if that produces any leak.

Anybody know a UK based place who might be able to repair my flooded amp!?