Soaking rear foot well - blocked drain

[OshinM]

Hey everyone,

after picking up our new car, 2018 Macan, from Porsche South London and absolutely falling in love with it, we found a lovely wet rear passenger side foot well.


I called Porsche Assistance who sent out a very helpful engineer, even though he was from the AA and not Porsche directly.


while waiting I found a thread that the drains for the sunroof and pano roof run into the boot space, and if blocked they fill up the side panel and then leak down into the footwell.


i opened the panel and found a nice soaking puddle just under the air compressor.


the technician unblocked the drain, and we have water tested it, and thankfully it is running clear now. however the drying out process has been a nightmare!


the lockdown hasnt helped and our local dealer Porsche West London have given us a date for Jan 7 to bring the car in. In the meantime I have had the wet vac working overtime this week, with daily water extraction.


ended up with getting the heating on hi and letting it run today for an hour!! This is after 5 days of wet vaccing and we are finally at a stage where it is pretty much dry.


any other tips or things to look out for?? The rest of the car hasnt had the issue, and I think I’m more disappointed with the dealerships attitude when we called to get some help.


car is under warranty and we have had it for 3 weeks now!!



thanks everyone

 

[pwebb]

After a massive downpour over the weekend, I've got the same issue of a soaking front passenger footwell carpet in the Cayenne. No idea where the ingress is from - any ideas? Has pano roof btw.

 

[OshinM]

So like ours the pano roof will have a pipe drain. It leads into the front wheel arches.


like ours sounds like your is blocked as as well hence the flooding into the foot well.


you may have to peel the wheel arch liner back to get to it.

getting the car dry again has been a ball ache

 

[pwebb]

The Cayenne has dried out, fortunately, seems it was mostly on the overmat. Will keep it garaged until it next gets to the OPC.

 

[martinrose]

I had the same problem with my Cayenne (now sold).
Quite glad now to be in a Macan with no sunroof!

 

[delboystoy]

Apparently, there are two sets of drains on the Macan pano roof, one at the front of the and one at the rear. The rear ones are particularly difficult to get to and if your car is parked outside all the time, and you do not maintain them they will block up at some stage and soak your carpets and even damage ECU modules located under the seats. This is also a massive problem on the 981 boxster's. It's about time Porsche released that the drains they are fitting are not fit for purpose and should send out a nationwide recall to solve this issue.