Thread: Windscreen condensation

Originally Posted by goingbush

cut a potato inhalf & rub it across your window

let it dry - problem solved.

remember my old man doing that with the old hillman when i was a lad..

worked a treat....

Originally Posted by goingbush

cut a potato inhalf & rub it across your window

let it dry - problem solved.

Does it leave a noticeable residue, and if so, do you wipe it off?

As said rain X is great stuff

Used to use it all the time in the uk for the same thing.

But here I use the A C in the defender which works great on my 98 defender.

I dont know if this is your problem but I thought I'd chuck in my 2 cents worth.

Used to have a Ford Focus - (yes I know shhhh) anyway when the outside was fogged up i'd just crank the AC! worked AWESOME, except that the AC was too good.... it used to unfog the outside and fog the inside at the same time.... you'd only get maybe a few seconds of clear screen out of it. Solution was just to run the ac slower.

Might be worth a shot since you tried every other setting. There used to be a sweet spot on the focus for unfogging...

Originally Posted by justinc

99% sure you have a blocked fresh air inlet drain. reach in under the plastic duct that feeds the heater box/ fan from the lh guard, and there is a duckbill like on an airfilter. it will probably be blocked. i actually remove them as it is a pain when they get old and won't drain anymore.

jc

Further to that, the issue is the water entering the duct, not being drained away so ending up distributed across the inside of the windscreen.

I recently read a thread on a UK forum about mods to the heater. One thing that was found to help a lot was fitting a hood over the cowling. Not only reduced the rain water ingress, thereby less screen misting, but the heater core became more effective at heating the air, because less heat was lost to water in the air.

The other thing that worked well was a recirculation duct from the passenger foot well, and a flap under the inlet cowling that could close off the fresh air.

I just hit the heated windscreen button. Works very well.
Pushing 5 years with the SVX, I'm realizing that the heated windscreen feature is to compensate for the leaking sunroof over a fully carpeted interior.

Seriously though, air conditioning is best as it removes the humidity.
Kenley

I used to have the same problem with lurch......when the screen was starting to fog up i would turn the heater on to demist.....and the screen would fog up instantly......
this was very dangerous.....as visibilty was reduced to absolute zero.....
Then I did as Justinc said....... removed the vent of the front guard and cleaned out the water drain for the air intake.......it was full of mud......
I then stuck the hose in there and flushed it all out......

And I've never had a problem since........water was just sitting there and all that humidity was being spread on to the windscreen via the heater and fan......
Now that the water can drain away......I just get hot air which dries up the windscreen pretty quick......

You don't need any more moisture in a defender......they have a built in humidifier when ever it rains or you wash your car.......it switches on automatically.......

When I have been caught like that in the past ie hot wet bodies in out of the snow - recirc, a/c full on and just enough heat to keep the A/c working.

Up in tropics same same. recirc a/c full with just enough heat to stop me from freezing.

Thinks recirc is the key. Get the water out of the the cab's air.

Why it works then doesn't work. A/c hits temp and switches off.

Works much better if heater and A/c temp controls are separate items

Cheers

RF