Always suffering with windscreen condensation.

Always suffering with windscreen condensation.

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read5458

Original Poster:

503 posts

185 months

Thursday 15th December 2011
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Sorry for sounding like some clueless moron but, I am.

My passat hasn't been driven for several months and sits on my drive.

With the weather being rather pants the past month or so, the windscreen is constantly wet on the inside.

I've let the heater/blower run a few times when running the engine every week for a good 20 - 30 minutes until the screen is clear. Next morning I'm met with a soaked windscreen.

Heater matrix checked and fine.

Is there anything I can do to prevent this?.

It's going back on the road soon and my current car does not suffer. Could it just ned a good drive and airing?.

Thankyou in advance.

jamessealey

16 posts

151 months

Thursday 15th December 2011
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I had this on my little Peugeot 106 not too long ago, all I did was spray some silicone based product (like autoglym vinyl & rubber care) onto the door seal rubbers and it takes any moisture away that could be getting into the car.. Should check when you next wash the car if the inside 'fogs' up at all, if it does, could be a leak somewhere meaning that water is getting into your car and causing condensation on your windows, this could most likely be down to a worn seal. That's what I would think anyway.

read5458

Original Poster:

503 posts

185 months

Friday 16th December 2011
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Thanks for the reply James. Will check when i next wash her smile

Chessers

745 posts

214 months

Friday 16th December 2011
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Also may be worth purchasing a big bag of silica gel to remove any existing moisture from within the car.

You can pick up a 1kg bag for about a tenner I think (and can re-use after drying out).

Just leave it in a couple of old ice cream tubs on the seats/footwells.

MattOz

3,916 posts

266 months

Friday 16th December 2011
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It could be the drain plugs are blocked. Our old mk4 Golf used to do the same. There are some rubber bungs at the bottom of the A pillar that can get gunked up. Might be worth investigating.

Similarly, a/c can cause condensation on the inside. Clean the screen and run the a/c on max speed and max temp to clear out. Finally, never use recirculation on the a/c. That'll cause condensation too.

Glassman

22,657 posts

217 months

Saturday 17th December 2011
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MattOz said:
It could be the drain plugs are blocked. Our old mk4 Golf used to do the same. There are some rubber bungs at the bottom of the A pillar that can get gunked up. Might be worth investigating.

Similarly, a/c can cause condensation on the inside. Clean the screen and run the a/c on max speed and max temp to clear out. Finally, never use recirculation on the a/c. That'll cause condensation too.
There's also the wiper motor area which can get a bit gunked up blocking the drainage.

I have removed and refitted many Golf and Passat screens (similar type of fitment) with similar complaints. All were down to poor fitting by the installer (usually along the bottom of the screen).

iandc

3,724 posts

208 months

Wednesday 21st December 2011
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Also try replacing the pollen filter in the aircon. I had same problem with Skoda whereby the aircon would take an age to clear the screen. Replaced filter and bingo it worked a treat. I guess the filter traps moisture when it gets older.

RussZS

11 posts

154 months

Wednesday 21st December 2011
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cptsideways

13,574 posts

254 months

Wednesday 21st December 2011
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Dont use windowlene to clean - worst stuff ever for attracting moisture

H100S

1,436 posts

175 months

iwanna

86 posts

192 months

Wednesday 4th January 2012
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As well as checking seals etc, check if your mats are wet, if they are, take them out to dry over night (weekend).

This may be a cause as well.


mwcr85

152 posts

151 months

Wednesday 22nd February 2012
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Pollen filter seal? Check passenger footwell for dampness. Very common.