Condensation in W213

[beaker218]

Just wondered if anyone else suffers from condensation in their W213. Although I get a bit on all windows it is the rear that suffers most. The rear screen demister takes ages to clear the screen. If i use the air-conditioning it eventually clears but as soon as I turn it off it mists up again. There is no dampness on the carpet etc. The car is only a year old and I have had E classes since 1995 and never had this problem without using the air conditioning.

 

[E63S]

Have you got air recirculation switched on?

 

[sturgeon]

That would do it!

 

[Dec]

If the air con is on all the time, summer and winter, as recommended, there should be no misting, if air con is off, then windows will mist up.

Dec

 

[daveenty]

If the air con is on all the time, summer and winter, as recommended, there should be no misting, if air con is off, then windows will mist up.

Dec

This.

Leave the air switched on all the time.

 

[whitenemesis]

Switch the a/c on, set your desired temperature, set to auto and leave it alone!

It has negligible impact on mpg, massive impact on comfort and condensation....

 

[Markssl]

In my last W211 I always had to use the A/C on to keep the screen / windows clear. In my W212 I never need the A/C on even during the winter. Odd!!!


Sent from my iPhone using Tapatalk

 

[whitenemesis]

In my last W211 I always had to use the A/C on to keep the screen / windows clear. In my W212 I never need the A/C on even during the winter. Odd!!!


Sent from my iPhone using Tapatalk

Give it time, you will

 

[Markssl]

Give it time, you will

My car has done 125k miles. I did 320 today in Snow and fog conditions and it didn’t mist up with A/c off. Was only me in the car to be fair.


Sent from my iPhone using Tapatalk

 

[John]

A/C dries the air so if you leave it off, you are constantly circulating damp air around (outside precipitation and your breath), a car will mist sooner or later - especially at this time of year.

 

[cheddar]

Once temperatures drop close to and below freezing, the AC won't be working despite the light coming on, this is on almost all cars, and is to prevent the evaporator icing up.
This can cause issues for us in the UK in our not-so hardcore winters, as even with your climate set to say 23 degrees on auto, the AC removes a lot of moisture from the air, but when its been on and is then turned off either because of outside temperature/manual de-activation/igntion off for a while, the moisture it removes sits in the bottom of the heater box and makes the air damp again.
Once we get to proper sub-zero temps, the outside air is usually quite dry, so the problem isn't as bad.
I tend to leave the AC off until required in the summer for this reason, and my car is dry and condensation free even now, despite being stood for several days at a time.