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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Wash, Wax, Detailing and Cosmetic protection/repairs > sunroof water spots



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      08-13-2013, 12:31 PM   #1
AllBlackBimmer
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Thumbs down sunroof water spots

I have hideous water spots all over my sunroof that I can't seem to get off with normal soap and water.

My sunroof almost looks "spotted" the water spots are that bad.

I did some googling, and seems there are many different thoughts on how to get them off...

figure I'd post here and see what you guys are doing.

My sunroof looks AWFUL

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      08-13-2013, 12:37 PM   #2
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i heard vinegar does the trick..
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      08-13-2013, 12:39 PM   #3
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Quote:
Originally Posted by patrickguu View Post
i heard vinegar does the trick..
Heard the same, but I am hesitant to just start spraying my sunroof in vinegar...

Much rather buy a product that works well.. like Mothers or turlewax..
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      08-13-2013, 06:50 PM   #4
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You will need to polish these spots out. water minerals have etched your glass. For OTC product, Meguiars Ultimate Compound should do the trick. If you want to dish out extra cash and buy a professional level compound also for your paint, you can consider Menzerna SIP 1500 or FG400.
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      08-13-2013, 08:21 PM   #5
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White Vinegar+distilled water Solution would not work if the spots has been baked on. It works great when the spots are fresh. Spray it on and let it dwell for about a minute or so then rinse with water.

Etched Water Spots on glass is a bit harder to deal with than if they are on paint. Polishing Glass is a long and messy process due to the inherent hardness of glass. In the extreme case... you most likely will need a rotary with some glass polishing pads as well as a glass polish.

Try a product called Chemical Guys Water Spots Remover (http://www.detailedimage.com/Chemica...P194/16-oz-S1/ ) to see if you could reduce its appearance. You could do this by hand w/ a MF or with a buffer. You might have to do several applications before you see any improvements.

In some cases..... Claying might work but generally not if the spots are old but what do you have to loose. Some will even suggest 0000 Steel wool but I am not a fan of this since the risk of instilling deeper scratches is greater.

Good Luck.
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      08-19-2013, 08:06 AM   #6
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I bought "Mothers Hard water spot remover for glass" , "stoners invisible glass". and some "rainex"

... The Mothers spot remover works OK - But here is what I see with it... it seems to more "cover up" the water spots" rather than actually remove them. It did seem like it lessened them, but they are still there, jhowever, it almost "waxes" your glass and makes it appear perfectly smooth and clear.

I only spent about 15 mins on my sunroof, and did use some elbow grease, but couldve done more...

Going to use it a few more times over the next few weeks to see if I can really get them out. Product makes for a really nice smooth finish though.

Invisible glass is prob one of the best cleaners out there IMO.

and some rainex on top never hurts to help prevent further water spots.
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      09-04-2013, 09:02 AM   #7
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This happened to me. I used stove top cleaner. It moved the spots.
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      09-04-2013, 10:51 AM   #8
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Quote:
Originally Posted by Donald78 View Post
This happened to me. I used stove top cleaner. It moved the spots.
little nervous using "non-auto" cleaners as some of them probably hurt car paint/clear coat...

Stove top cleaners seem legit, i'd jsut be afraid of scraching the glass or screwing up the paint around the sunroof...


My water spots are definitely etched in...
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      09-04-2013, 11:06 AM   #9
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how long did you leave the car dirty like that?
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      09-04-2013, 11:41 AM   #10
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use carpro ceriglass to clan those spots off the glass
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