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Condensation problem

colin129

colin129

PCGB Member
Member
One of the 'teething' problems I have is that my car is full of condensation. It forms all over the windscreen and even the dashboard is covered in water droplets if I leave the car for a few days.

Despite the fact that water is collecting in the offside (drivers) REAR footwell, there is no where near as much condensation on the rear screen.

A 3.2 owning friend says a similair problem he had was solved with a bit of sealent around the rear screen. The guy who is repairing the car, various other teething problems, seems to think it could be the sunroof drains being blocked.

Considering that it has been fairly dry recently with no torrential rain like we had in the 'summer', any other ideas guys?
 
Have you checked the soundproofing under the carpets, especially in the driver and passenger footwells? They may well be sopping wet from previous leaks (many are I believe). I know mine are and will be ripped out and replaced at some point. Once wet they are impossible to dry I believe.

My leak that caused this was blocked sunroof drains which was easily cured by poking with some thick wire.
 
condensation in the car is just the same as in the house. When you are using the car you put the heat on and as the temperature rises the air can hold more moisture so all the condensation off the windows goes back into the air. As the temperature drops at night the air temp in the car drops also and as it cannot hold the same level of moisure it deposits it on the coldest serfaces first ,ie the windows. then the soft stuff that will hold moisure (carpets etc)! lesson over.[:D]

What you need to do is pull all the carpets out the car and dry them in the garage or a spare room that is heated but well ventilated.Alternatively stick a de-humidifier in the car for a few days untill all moisure removed.

Make sure you cure all water leaks into the car ,check the heater hoses and door seals especially the front screen rubber seals. check the inner bulkheads under the bonnet and clear the drain tubes etc . Should cure the problem.

there is one other possibility. The car's water coolant system should stay complety pressurized all the time provided you have no leaks. When the engine is switched off the engine gets hotter for a short while which can force water vapour out of the system from loose hoses and connections. Its worth checking the heater hoses and connectors, pipes etc inside the car to make sure you have no weeps/leaks anywhere. Leave the car overnight and remove the filla cap. you should hear the vacumn sucking air if the water coolant system is sealed.

this is only relevant to water cooled engines obviously so I'm adding it for completness in case it helps any other owners who have the engine in the right place hee hee

I always open the sunroof after the car heats up so that all the warm moist air is removed from the car every trip and doesn't stay in the car.
 
Hi, I have had constipation recently too. Apparently some of the people in I'm nearly a celebrity, keep me in here (please) have also been suffering.
As for water on the windows, is that the same as water retention, a well know womens problem. I am lucky I keep my water in a bucket.

To avoid constipation - eat fruit
To avoid condensations - don't put your heating and blower on as soon as you get in the car, wait until windows are clear.
To avoid watery tension - buy a bucket

Who says I get my words mixed up and don't understand women!
 
I was thinking that it was leaking around the rear screen.

It looks like the rust has been repaired on both front and rear screen but who ever refitted the glasses obviously used a pallet knife to put the sealer on, very messy job.

What sealer do I use? Some sort of silicon sealer from my local B&Q, or is there somthing better/more appropriate?
 
Colin
Had a C2 Targa kept it out doors used to get a bit of condensation due to it being a Targa, 2 minutes on the heat totally cleared it

As you have a Coupe it is purely down to the water leak once you have located it the problem will disappear once its dried out. Rear foot wells are usually the sunroof seals or the drain holes being blocked, from memory they run down the rear side panels. Very occasionally its the door rubbers or the rear window.
 
ORIGINAL: peanut

there is one other possibility. The car's water coolant system should stay complety pressurized all the time provided you have no leaks.
Click to expand...

Good advice for a water cooled car (like yours) but not for an aircooled 911!
 
ORIGINAL: colin129

I was thinking that it was leaking around the rear screen.

It looks like the rust has been repaired on both front and rear screen but who ever refitted the glasses obviously used a pallet knife to put the sealer on, very messy job.

What sealer do I use? Some sort of silicon sealer from my local B&Q, or is there somthing better/more appropriate?
Click to expand...

You can buy a sealer made by Comma that comes a "3 in 1" oiltype can with a long spout which is easy to slide all around the glass/rubber & rubber/body joints.Xs can be wiped off with white spirit.
 
ORIGINAL: Zermatt Turbo

ORIGINAL: peanut

there is one other possibility. The car's water coolant system should stay complety pressurized all the time provided you have no leaks.
Click to expand...

Good advice for a water cooled car (like yours) but not for an aircooled 911!
Click to expand...

I'm just adding it for completness in case it helps any other owners"[;)]
 
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