I thought the greasiness on the windscreen was just my imagination, but now you mention it within a day of a very thorough cleaning the windscreen shows exterior smudging. I'm very sure this isn't "vinyl fog" on the interior.

 

Yep, happens to me too. It's a P.I.A. especially at night when it shows all the fog and smear more clearly. Drives me mad. And cleaning the inside of the windscreen has always been a ballache job. You need to be a contortionist ?

 

I had my car treated with the GardX vehicle protection system which includes the windows and it seems to keep them clean and smear-free. You can buy the window treatment separately called GardX Glass Gard.

 

This issue is driving me crazy!!! My windows fog up like crazy and even when they aren't completely fogged up, I can see so many markings on them like circles right in the middle, by the mirror (more noticeable to backseat passengers) - Its incredibly frustrating and dangerous to be constantly fidgeting with the max and ac buttons. Steams up the minute I take Max off! Am I doing something wrong?

 

You’ve all just summed up everything I was going to write! Greasy windshield a day or so after cleaning. I’ve changed the brand of windscreen wash I use, I’ve diluted more, I’ve diluted less and still it’s the same. Perhaps it might be down to the wiper blades?

 

As far as I'm aware, this thread is talking about the inside of the windscreen, not the outside.

 

I am finding a fine mist on my windscreen (outside) whixh does not get removed by the wipers. This is driving me mad!

 

Does anyone with the windscreen fogging problem want to try this? Then report back?

https://www.hunker.com/13429451/how-to-make-your-own-anti-fog-glass-and-windshield-spray

 

Resurrecting this thread as this is really noticeable with the current cold weather in my A180. I checked that there is air coming out of the dash vents and that's OK, but the screen just looks greasy/misty on the inside.

Blasting it on max clears it for a few minutes but then it's back. (Climate permanently switched on).

Anyone manage to find a resolution? Car has 2500 miles on it.

Thanks in advance.

 

Funny enough , I have the same issues! ...... Even tried Rainex Anti-fog

 

I had the same issue. I found Autoglym Fast Glass worked the best. Halfords often have it on sale.

 

I do not have such a problem, It just happened once when the car is not running, all windows closed and I was inside, bc of my breathing, totally normal, opened up my roof top, gone. But, as a non pro detailing lover, I clayed my windows in and out, cleaned all the possible stuck-on chemicals on my mirrors... May be I have gotten rid of most of the problem you have mentioned here. Also, try cleaning up the air vent at a service. Plus, If the car is a few months new, all the excess production materials could be exhaling from the vents, and-or human skin particules stuck in when interior circulation was on, and then now they're releasing... Just my guessings...

 

Good advice from @Glassman:

Windscreen Condensation. - Glasstec Paul

Have you noticed that your windscreen is fogging up more than it used to? It may just be something unavoidable, or it could be something much worse.

www.glasstecpaul.com

I should start with a high quality glass cleaner, and go from there:

Best car glass cleaners 2024 | Auto Express

Which formula will leave you seeing clearly?

www.autoexpress.co.uk

 

Thanks a lot folks, I guess it's left over chemicals from the factory. I've cleaned it thoroughly with Turtle Wax Clearvue and that seems to have done the trick 🙂

 

I've found that if you vape whilst driving, this will leave a film of grease on the inside of your windscreen.

 

Not been on for a while, so not kept up with this! Had the car just over 2 years now and still having the same issue so don't think it's anything to do with left over chemicals, must just be something that Mercedes put in their air conditioning 🤷‍♂️ Got to say it's particularly frustrating at this time of year when the sun is still quite low on the morning commute!

 

Turtle Wax Clearvue did the trick for me

 

Again, just try detailer's clay on your windshields, in and out of the glass... totally cleans anything on the surface.

 

Hi,
you could try a magic eraser soaked in a light solution of apc. Make sure you cover the dash with a old towel and wring magic eraser out. Scrub the inside windscreen. Follow with a clean microfibre, normally just a damp one to remove any excess water. Leave for a couple of minutes for the screen to dry and follow with a glass cleaning microfibre and glass cleaner. I have removed vape residue from with this process. The only other thing to try after that is a cream based window cleaner but that can get messy and I would avoid it.

 

Not sure if this is a problem unique to the A250e hybrid or a general problem ?

I've had my A250e saloon around one year from new, and it's always had this annoying problem. The inside of the windscreen is always steaming up, or at least seems to be coated with a layer of fine mist.. wiping it just temporarily cleans it away, it soon returns and shows all the wipe/streak marks. It always happens even if the AC is on and the heat is directed to the windscreen... I'm forever wiping it with a chamois pad to try and get it clean. If I clean it with glass cleaner it seems to just smear around as if it's coated with some kind of grease or similar. I tried to clean i with meths, but it just left smear marks everywhere.

Anyone have the same problem ? if so what's the best way to fix it ?

Thanks

 

See post #15.

You need a high quality glass cleaner to get every bit of residue off.

And from there keep the inside of the car very very dry.


If you find it difficult or impossible to keep the inside from fogging up - has your car been back for the leaky condensate drain recall?

IMPORTANT - Recall - A-Class

Just received a recall letter from MB, regarding air con. Possible leak in condenser that could potentially cause other problems! luckily enough, my car is already booked in next week for the air con sensor replacement.

www.aclassclub.co.uk

 

Hi OK thanks I'll try and give it a good clean with some high quality stuff. I didn't receive any info on leaking condensate drain... it's my company car provided through a lease, so not sure how that would get to me, it is however booked in for it's first service at the MB dealers tomorrow, so I guess that they will address any recall's or similar.

reading the above posts, seems like a common problem.

 

Fixed the problem, gave the inside glass a good cleaning with Autoglym glass polish, worked a treat