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Windshield Condensation

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Old 08-14-2018, 10:18 AM
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Windshield Condensation

Dropped my car off at the dealer this morning for a few little things that were missed in the CPO inspection.
-LED in exterior driver door handle is out
-Small squeak/creak in the LF suspension
-A/C always blows on the windshield

Svc adviser claims that A/C part is normal, which I find hard to believe.

Anyone else get near constant condensation at the base of the windshield? I can put my hand up there & can feel airflow, regardless of the A/C setting.
Old 08-14-2018, 03:32 PM
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Originally Posted by JAMADOR
Dropped my car off at the dealer this morning for a few little things that were missed in the CPO inspection.
-LED in exterior driver door handle is out
-Small squeak/creak in the LF suspension
-A/C always blows on the windshield

Svc adviser claims that A/C part is normal, which I find hard to believe.

Anyone else get near constant condensation at the base of the windshield? I can put my hand up there & can feel airflow, regardless of the A/C setting.
Warm glass, cold air blowing on the inside, high humidity? Yes, its normal.
Old 08-14-2018, 03:50 PM
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I could see normal if the air was set to blow on the windshield.
In AUTO, or manually setting to dash, dash+floor, or floor it is still always blowing on the windshield.

I've owned 11 cars in my time driving, always in/around the Houston area & this is the first car to do this.

The CLA I have as a loaner does not do the same thing.
Old 08-14-2018, 07:42 PM
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I get condensation on the bottom of my windshield when i have the AC on, on a hot / humid day. Do you have a picture?
Old 08-14-2018, 08:30 PM
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Does not happen with mine unless I have it set to blow on the windshield.
Always hot and humid here.
Old 08-15-2018, 02:28 PM
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Dealer said they re-initialized the blend door motor & the problem seems to have been resolved.
Picking the car up this afternoon. We'll see over the next couple days.
Old 08-30-2019, 10:10 AM
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This was this morning after about 20 minutes in the car.
A/C set on Auto @ 72*
Manually setting the system to blow through just the dash vents or floor helps, but it's always directing some air at the windshield.
I've had 10 cars, and this is the first time I've ever had something this consistently.

Old 08-30-2019, 11:40 AM
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Originally Posted by JAMADOR
This was this morning after about 20 minutes in the car.
A/C set on Auto @ 72*
Manually setting the system to blow through just the dash vents or floor helps, but it's always directing some air at the windshield.
I've had 10 cars, and this is the first time I've ever had something this consistently.

Cold air blowing on warm glass (likely high humidity too) = normal
Old 08-30-2019, 12:01 PM
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I'm not doubting that concept, it's that the system blows on the windshield regardless of what it's set to, resulting in the above.
Old 09-01-2019, 06:04 PM
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C180 Coupe (C205)=> C 300 Coupe (C205)=> E350E AMG (W213) => ??
I personally don't think it is normal. I live in very hot climate too with AC always on (on auto) at 24c and I don't get this.

There are two things to consider. First, Auto DOES blow some air on the windshield - almost always.

Second, this should not cause this condensation. I personally don't think that this is normal.

In Dubai they have C class too, you tihnk they got condensation on the windsheild like that every time they drive? Just ask your dealer this very same question.
Old 09-01-2019, 10:05 PM
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Originally Posted by MBOCD
I personally don't think it is normal. I live in very hot climate too with AC always on (on auto) at 24c and I don't get this.

There are two things to consider. First, Auto DOES blow some air on the windshield - almost always.

Second, this should not cause this condensation. I personally don't think that this is normal.

In Dubai they have C class too, you tihnk they got condensation on the windsheild like that every time they drive? Just ask your dealer this very same question.
Does the humidity ever get above 10% in Dubai?
Old 09-02-2019, 06:01 AM
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C180 Coupe (C205)=> C 300 Coupe (C205)=> E350E AMG (W213) => ??
Originally Posted by Mikey53
Does the humidity ever get above 10% in Dubai?
Don't know about Dubai but where I live it's very humid and I don't get this type of condensation nor do I know anyone that gets it
Old 09-02-2019, 08:00 AM
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I live in South Mississippi and that only happen during early AM just before sunrise or after a rain maybe and I have AC set around 70F.

It is not an everyday thing for sure but only when Dew point is very high and I have AC cranked very cold.

I have E400 though
Old 09-03-2019, 10:41 AM
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Mine is daily, it's at it's most within 20-30 minutes into my morning commute & just as bad at night.

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