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weird windscreen phenomenon

z-gtd

New member
Hi all,

I'm new to the forums, and a new owner of a GTD 7.5; Love it so far!

I have an issue with my windscreen where I have tried many things to fix it, but nothing is working.

So far I've:
a) cleaned it with mr muscle (deep grease cleaner)
b) white vinegar
c) rainX
d) autoglym glass polish

and this weird section of the windscreen remains blurry.

In recent bad weather it has been difficult to see out the windscreen, and I was wondering if anyone has any advice on how to fix this.

Cheers

Zack

PS the rear windscreen has is awful in its own way, spots everywhere and nothing seems to be clearing it.
 

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akimmel

Ready to race!
Location
Ipswich, MA
looks like there is some sort of glass sealant that has started to wear off in sections, causing some spots to bead and others the water just kind of flattens out. Either that or there are some contaminants stuck to the glass in those blurry spots, like water spots. Best thing to do would be polish the entire surface. Regular compound works for me and is safe for the glass. I'd probably invest in a DA to take care of it, I did all my side windows by hand to get rid of the water spots and it sucked but it was doable. windshield is a whole other story.
 

Carlosfandang0

Drag Racing Champion
Location
UK
Ride
2016 3Dr GTi DSG CSG
Thanks, I might just pull out the machine polisher and give it a go all round...

Cheers
Be mindful though that if you have any sort of pitting or small stone chips on the windscreen you will end up with compound in them, you’d then have to clean this out or have small white spots all over the glass! I’d try scrubbing it with a citrus all purpose cleaner first off.
 

golfdave

Drag Racing Champion
Location
Scotland (U.K.)
Ride
MK7 Golf GT Estate
Got the same....I had to re-do polish mine again after it was outside overnight for the first time in years!.....I use Car-pro ceri-glass ceranium oxide glass cutting liquid...only way to get the glass smooth & solves many problems…& then clean with meths & then fairy liquid warm water on a MF cloth, then just warm water on MF cloth..& buff...
 

z-gtd

New member
Thanks guys! I’ll give it a go tomorrow.

To summarise what you have said above. I will clean the windscreen with a citrus based/powerful cleaner, then fairy liquid and a MF cloth. I will then evaluate the situation and if needed Will machine polish the stuff out.

I’ll let you know how I get on,

cheers
 

mopar22

Go Kart Newbie
Location
Va/MI
So I’ve cleaned the windscreen with every household degreaser I could find in Sainsbury’s, got a bit p’eed off and used a bit of diluted bleach... and the windscreen is spanking clean apart from that portion again. Now it’s turned into a rainbow coloured sort of patch...
Do you reckon I need to use the DA on it?
Have you tried a clay bar? If not try diluted isopropyl alcohol mixed with water and a clay bar. You'll need to find a happy medium since it can and will break down the clay bar if too much alcohol
 

z-gtd

New member
Have you tried a clay bar? If not try diluted isopropyl alcohol mixed with water and a clay bar. You'll need to find a happy medium since it can and will break down the clay bar if too much alcohol
Yes ive tried using clay bar with soapy warm water, and it did practically nothing... I will try the DA tomorrow, and if that doesn't work I'll probably ring VW and ask them to sort it out under warranty (because the car was delivered to me like that)
 

Carlosfandang0

Drag Racing Champion
Location
UK
Ride
2016 3Dr GTi DSG CSG
So I’ve cleaned the windscreen with every household degreaser I could find in Sainsbury’s, got a bit p’eed off and used a bit of diluted bleach... and the windscreen is spanking clean apart from that portion again. Now it’s turned into a rainbow coloured sort of patch...
Do you reckon I need to use the DA on it?
When I referred to a citrus based all purpose cleaner I wasn’t talking about anything you can buy in Sainsbury’s, I meant a detailing product that is citrus based, not a product that is a cleaner that smells of citrus,
Use this mixed in a pump spray at 100ml product to 900ml of water and agitate with a new hogs hair detailing brush then rinse,
 

Carlosfandang0

Drag Racing Champion
Location
UK
Ride
2016 3Dr GTi DSG CSG
Just a thought! After looking at your pictures could it be something that is on the wiper blade??
 

anotero

Drag Racing Champion
Location
SoCal
Got the same....I had to re-do polish mine again after it was outside overnight for the first time in years!.....I use Car-pro ceri-glass ceranium oxide glass cutting liquid...only way to get the glass smooth & solves many problems…& then clean with meths & then fairy liquid warm water on a MF cloth, then just warm water on MF cloth..& buff...
Would this help with pitting? I live in a desert, my windshield is pitted all over.
 

anotero

Drag Racing Champion
Location
SoCal
yes!..but you may need to use it with a DA polishing machine instead of hand polishing....
That sounds like good news. I don't feel like buying a new windshield (because if I were to, I would go for the expensive Saint-Gobain instead of the Mexican crap I got from Pueblo).
 

tmw2442

Ready to race!
Location
SC
So I’ve cleaned the windscreen with every household degreaser I could find in Sainsbury’s, got a bit p’eed off and used a bit of diluted bleach... and the windscreen is spanking clean apart from that portion again. Now it’s turned into a rainbow coloured sort of patch...
Do you reckon I need to use the DA on it?
Looks like a glass coating or ceramic that was applied correctly(left to dry and not buffed off leaving a "high spot"). You will have to polish it off with a DA or take it to a detailer you trust.
 

gregozedobe

Battle scarred veteran
I'd try a bit of toothpaste on a rag (keep it wet) and see if that helps (toothpaste is a mild abrasive). Otherwise I'd look at a specialist glass polish (as others have advised - cerium oxide)
 

Desslok

Go Kart Newbie
Location
PA
Ride
2019 Rabbit
Try #0000 steel or brass wool, with soapy water. Do not use dry. Non-abrasive metal polish is another option.
 
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