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Fronts Windscreen keeps steaming up
- Thread starter Callumlj
- Start date
Jason71
Well-Known Member
Any more info?
Has this has co-incided with the cold weather?
Is this before you get in?
just after you set off?
while driving?
how many people in the car?
What happens if you use the demist windscreen button does that not work relatively quickly?
M1tch
2021 M3P with EAP
Have you checked the scuttle (between the windscreen and Bonnet) isn’t full of leaves or debris?
have you forced recirculate on (Not even sure if that is possible in a Tesla as haven't tried)
edit: yes you can. Make sure 12 isn't pressed:
edit: yes you can. Make sure 12 isn't pressed:
Model 3 Owner's Manual | Tesla
Learn how to operate and customize the interior climate.
www.tesla.com
AndrewGR
Member
I’ve noticed a bit of steaming on the windscreen when the fan comes on but it clears very quickly as the heating comes on. I had the first de- ice of the winter on Saturday. Not quite as quick as my old pre heat pump Model 3 but still much quicker than any ICE without an electric screen.
I had this issue yesterday with 3 people in the car (cold & drizzly weather). I did notice that with the climate on Auto if the cabin is cold, it forces the AC to off & you can't turn it back on unless you change to manual. If the AC is off, the inside of the car will steam up pretty quickly (AC dehumidifies). I was sure this wasn't the case before, I'd never had any condensation issues last winter.
For the first 20 minutes of my journey yesterday the condensation was getting worse, not better. To the point all the side windows were steamed completely & I almost had to wipe the windscreen to see...
For the first 20 minutes of my journey yesterday the condensation was getting worse, not better. To the point all the side windows were steamed completely & I almost had to wipe the windscreen to see...
MrBadger
Badger out
We were parked up this afternoon. When we got back in the car a bit of misting lower windscreen passenger side but it cleared very quick on auto.
I noticed other cars parked at same location were totally misted up - far worse than ours. The moment sun started going down temperature started to plummet.
I just put it down to time of year and wet weather over previous few days. Expecting car to be a bit of a mare next few mornings. It’s damp and cold - our car hates it. Hope I managed to get the gummi pfledge on the seals in time. There are parts of the car that cabin heat never reach.
I noticed other cars parked at same location were totally misted up - far worse than ours. The moment sun started going down temperature started to plummet.
I just put it down to time of year and wet weather over previous few days. Expecting car to be a bit of a mare next few mornings. It’s damp and cold - our car hates it. Hope I managed to get the gummi pfledge on the seals in time. There are parts of the car that cabin heat never reach.
It’s good to give the car a 10 minute warm up via the app before setting off… not had steamed windows so far. I leave the hvac on auto …
Jason71
Well-Known Member
Of course even auto has three manual fan settings these days high/medium/low . Unless you are hypermiling, and particularly in cold weather, probably need to leave that on high so auto is not constrained. I imagine the low setting would slow down screen demisting.
For me the de-fogging is no good at all. Even on maximum de-fogging it takes at least 4 minutes to mostly clear the windscreen.
On our Leaf pressing the windscreen demise button put the fan on maximum, AC and heater on and clears the screen in 3 to 4 seconds.
I have checked to see if the air intake is clear and have had the cabin filters replaced too. Anything else I should check?
On our Leaf pressing the windscreen demise button put the fan on maximum, AC and heater on and clears the screen in 3 to 4 seconds.
I have checked to see if the air intake is clear and have had the cabin filters replaced too. Anything else I should check?
I'll repeat - unless you've used this on the windscreen already, I wouldn't worry about the car.
>HG glass and mirror cleaner | Effective glass cleaner spray
>HG glass and mirror cleaner | Effective glass cleaner spray
WannabeOwner
Well-Known Member
I think (until corrected!) that its related to the air that is in the car - that got in there when it was warmer, and once cooled, e.g. overnight, the relative humidity increases and its going to condense. As well as turning on screen MAX I open all the windows for first 1/2 mile of my journey to replace the cabin air with outside stuff which I assume will have lower relative humidity
Jason71
Well-Known Member
What model and age do you have?
If warm air blown directly and strongly on the windscreen does not clear it then the air being blown has too high a relative humidity.
What I am saying is if you can feel the warm air actually being blown at the screen then the air in your car may be too damp. is there anything wet been left in the car? have you had any leaks ( might want to check!).
if its an older M3 I would take up the carpet and check for water in the boot! only maybe try the glass cleaner thing first. might be easier!
Tesla automatically puts the recirc on when AC is switched on (automatically when you defog or demist). This again makes the misting up worse. I normally switch off the recirc and this helps to demist quickly as the cold air doesn’t recirculate.
