Steaming up

[Muzzer79]

Hello

I have a W205 C220d.

Not the most fascinating of cars but it's a company car so I could do worse.

Anyhow, my problem is it steams up like a turkish sauna in the cold weather, which is more prevalent now.

I obviously use the heater and set it to the de-mist setting to point all the warm air at the windscreen, but it still doesn't really clear and the rear side windows steam up too.

1. Am I being an idiot and using the heater controls incorrectly? I have the temp set at 22 degrees, should it be higher? Car feels very very hot inside if I go warmer.


2. Or does it sound like something's wrong with it? I can feel warm air coming out of the dashboard nearest the windscreen but it just doesn't seem to clear the 'screen.


I recall an incident last winter on a very cold day where even after a 15 minute drive with the blowers on max at the windscreen, it still wouldn't clear....

Flippin' annoying so any advice before I potentially waste my time at a dealer would help.

[s70rmp]

are you using the heater or the Air Con ?

my W204 clears the windows in seconds with the air con

[buggalugs]

Make sure you’re not on recirculate and turn the AC on, maybe check that the carpet isn’t wet anywhere?

[daveenty]

As above really, a 205 should have no issues.

Set the controls to Air Con on and Auto. Let the car sort it out itself.

[RicksAlfas]

As above, make sure both AUTO and A/C are on. It should clear very quickly.
Leave these two on and simply adjust the temp for comfort.

[sooty61]

I had this on a one year old VW Golf I had a few years ago. I found 6” of water in the spare wheel well. VW swapped the car out as I had o key just bought it. Check for leaks!

[gizlaroc]

Remember the climate is also a dehumidifier, these cars are designed for them to be on, turn them off and it will steam up.

[RevsPerMinute]

Bread knife has the same car in an estate form, and I have the same problem. Its really annoying as there is a constant haze on the inside of the screen at this time of year. A blast of the demist button sorts it out for a bit but makes you sweat!

I've put it down to poor ventilation design.

Muzzer79 said:

Hello

I have a W205 C220d.

Not the most fascinating of cars but it's a company car so I could do worse.

Anyhow, my problem is it steams up like a turkish sauna in the cold weather, which is more prevalent now.

I obviously use the heater and set it to the de-mist setting to point all the warm air at the windscreen, but it still doesn't really clear and the rear side windows steam up too.

1. Am I being an idiot and using the heater controls incorrectly? I have the temp set at 22 degrees, should it be higher? Car feels very very hot inside if I go warmer.


2. Or does it sound like something's wrong with it? I can feel warm air coming out of the dashboard nearest the windscreen but it just doesn't seem to clear the 'screen.


I recall an incident last winter on a very cold day where even after a 15 minute drive with the blowers on max at the windscreen, it still wouldn't clear....

Flippin' annoying so any advice before I potentially waste my time at a dealer would help.

[anonymous-user]

It could also be the cabin filter, I've had this happen in my old W210. The old filter was so clogged that the fan couldn't pull air through it.