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Build up of moisture/condensation on inside of windscreen

Passport1

Hi

Over last couple weeks am finding that when i get back to my car in the car park after work the inside windscreen window is covered in moisture/condensation. Car would have been parked and idle for 8-9 hours in car park

These seems to be case lot of evenings regardless of weather conditions

Turning on the heating on full and directing the air flow at the windscreen taking long time to clear it either with the hot or cold air on

Have to rub the excess moisture off with a cloth

No other cars around me seem to have the same build up of moisture on their inside windscreens

This only started happening in last 6-8 weeks and hasnt happened other years

The windows are fully closed on the vehicle when parked

Car is a 2014 VW Golf - Diesel

Any thoughts what causing this or how to avoid it happening

Thanks

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Gravelly

Passport1 wrote: »

Hi

Over last couple weeks am finding that when i get back to my car in the car park after work the inside windscreen window is covered in moisture/condensation. Car would have been parked and idle for 8-9 hours in car park

These seems to be case lot of evenings regardless of weather conditions

Turning on the heating on full and directing the air flow at the windscreen taking long time to clear it either with the hot or cold air on

Have to rub the excess moisture off with a cloth

No other cars around me seem to have the same build up of moisture on their inside windscreens

This only started happening in last 6-8 weeks and hasnt happened other years

The windows are fully closed on the vehicle when parked

Car is a 2014 VW Golf - Diesel

Any thoughts what causing this or how to avoid it happening

Thanks

Could be caused by:

A leak in the heater matrix - is the coolant level dropping?

Water leaking into the car somewhere - are the carpets wet? Or the boot - check spare wheel well.

Can sometimes be caused by a clogged or damp pollen filter - check it.

I’ve also come across it where the heater recirculating flap has stuck in the closed position.

CJhaughey

Are you using aircon? If not you should be using it as it dries the air, and make sure it is not set to recirculate.

fancy pigeon

Wash the inside of your windows with shaving foam

biko

As said, start with small stuff
Clean the windscreen inside, moisture will hang on to dirty.
Change the pollen filter anyway, unless you have done so recently.
Cheap and easy things to DIY

.......

You can buy small dehumidifiers in Woodies, I started using them when this happened with my last car, the car was getting older, moisture was getting in somewhere, I couldnt find anything obvious, may have been door seals?

Anyway, these small dehumidifier containers last about 3 months and within 24 hours of putting one into the car my problem was solved for that winter.

This was the one I used, can be hidden in a footwell or side pocket of a door.

https://www.woodies.ie/kontrol-100g-mini-moisture-trap-lavender-scent-1066763

Roberto_gas

Passport1 wrote:

Over last couple weeks am finding that when i get back to my car in the car park after work the inside windscreen window is covered in moisture/condensation. Car would have been parked and idle for 8-9 hours in car park

I thought its normal in this cold weather ?

Gravelly

Roberto_gas wrote: »

I thought its normal in this cold weather ?

Condensation is caused by water vapour condensing out of the air when it meets a colder surface. There shouldn’t be enough moisture inside the car to cause a noticeable amount.

Roberto_gas

Gravelly wrote:

Condensation is caused by water vapour condensing out of the air when it meets a colder surface. There shouldnâ€™t be enough moisture inside the car to cause a noticeable amount.

Yeah...on a bright sunny day my windows are clear...but early winter mornings they have loads of condensation and so does rest of cars park around in our estate...

Gravelly

Roberto_gas wrote: »

Yeah...on a bright sunny day my windows are clear...but early winter mornings they have loads of condensation and so does rest of cars park around in our estate...

Strange. The only time I’ve ever had that was in a car I had with a leaky heater matrix (or with just about every classic I’ve owned, usually due to a leaking sunroof or door seals).

.......

Roberto_gas wrote: »

Yeah...on a bright sunny day my windows are clear...but early winter mornings they have loads of condensation and so does rest of cars park around in our estate...

You wont see it in most cars unless people are introducing a lot of moisture into them via leaving wet gear, wet dogs or other sources of water inside for long enough for them to dry out. Car where smokers have the windows open even when its raining can suffer from it too. Basically any situation where a lot of moisture can get in and stay in.

You rarely see it in newer cars. Generally it starts happening when the door/window seals degrade in older cars and moisture is constantly able to seep in.

Ten Pin

Check the pollen filter housing seal for leaks (where the housing meets the scuttle). Reach down into the duct leading to the blower to check for any lying water.

standardg60

Another often overlooked place to check is the spare wheel well.

Passport1

Thanks all for the replies and suggestions

I checked the footwells inside in the car and no water lodging there. Also checked the storage area for spare wheel and no water there either

I have washed the window with Shaving foam per suggestions here so will see if that helops and will also use the Air Con as suggested too

Thanks for all the replies and suggestions - much appreciated

RTT

I'd a similar in a 13 year old car with a build up of condensation. I read somewhere to get an old pair of tights and place a few scoops of cat litter in them, tie a knot and leave them on the dashboard over night. It actually worked which surprised me.

Esel

RTT wrote: »

I'd a similar in a 13 year old car with a build up of condensation. I read somewhere to get an old pair of tights and place a few scoops of cat litter in them, tie a knot and leave them on the dashboard over night. It actually worked which surprised me.

OP, look under the front passenger seat.