991 Condensation
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5STM5

Original Poster:

306 posts

165 months

Tuesday 13th September 2022
quotequote all
Hi All,

I bought a 2012 Carerra 991 a little while ago, and have noticed that when the temp drops at night I see condensation on the inside of the windows. It clears up in the morning. I've tried adjusting vents, driving with open windows, to no avail. No smell of damp or seen moisture on dash / panels. Is this usual? Anything I can do?

Thanks

Jeremy-75qq8

1,411 posts

108 months

Tuesday 13th September 2022
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On my ( much older one) it was a leaking rear screen. There will be water there somewhere !

JohnnyUK

959 posts

94 months

Tuesday 13th September 2022
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Check the carpets to see if they're wet, especially under the seats, where water will pool.

Let us know

IREvans

1,126 posts

138 months

Tuesday 13th September 2022
quotequote all
5STM5 said:
Hi All,

I bought a 2012 Carerra 991 a little while ago, and have noticed that when the temp drops at night I see condensation on the inside of the windows. It clears up in the morning. I've tried adjusting vents, driving with open windows, to no avail. No smell of damp or seen moisture on dash / panels. Is this usual? Anything I can do?

Thanks
There’s definitely water in there somewhere. Quickest way to dry it out is to get a domestic dehumidifier in there. A couple of days and it’ll be bone dry in there.

As for how the water is getting in, there’s a number of well established leak paths….door membranes failed, sunroof drains blocked, AC condenser drain pipe displaced….a poke around after the next time it’s rained heavily should help narrow it down…

5STM5

Original Poster:

306 posts

165 months

Wednesday 14th September 2022
quotequote all
Appreciate the info folks. Unfortunately I fly out to work for a month tomorrow and the car lives on my drive. I'll take notes of you advice and deal with it when I get home.