Help, Hard water stains on brand new 2015 WRX
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This is a discussion on Help, Hard water stains on brand new 2015 WRX within the Exterior & Appearance forums, part of the Tech & Modifying & General Repairs category; I took delivery of a CWP WRX on 4/19/14. A few days later I noticed that there are small water ...

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    Help, Hard water stains on brand new 2015 WRX

    I took delivery of a CWP WRX on 4/19/14. A few days later I noticed that there are small water droplet outlines all over my windows (and possibly paint, but it is white and I cannot tell). I did some research and found that these might be hard water stains, and using vinegar can remove them if they aren't too old. I tried that method with no success. This is a brand new car, and I can't imagine how my windows could be so bad already.

    Does anyone with a 2015 WRX have this same problem? The spots can only be seen at certain angles and in direct light. I'm thinking that it either rained on the car in Japan before it was put in the shipping container (could all the nuclear waste pouring into the ocean over there cause acid rain?) or it was rained on after it was unloaded in the US. I don't see how else this could have happened and it is very frustrating. If it happened to my car, I have to imagine there are other cars out there with this issue.

    I contacted my dealer to ask about it and have them look at it, but have not heard back from them yet. I wish I would have seen this before I purchased the car, but I never even thought to look for something like that. I am afraid my glass is etched and ruined.

    Thanks

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    Registered User Obeisance's Avatar
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    In a "related but not really" anecdote, I had washed and waxed my fiance's white car, and had not properly dried it before waxing. Thus, remaining dirt/water mixed with the solvent in the wax (silicone based wax), and messed up the paint. During the "wax off" stage, there were darkened swirls in the paint which were very visible. Attempts to scrub with soap and water (plenty of elbow grease) did nothing. This was some time last year (spring). Just this past weekend, I used a power-rotary tool and a buffing pad with a very gentle buffing compound, and was able to remove the dark markings. I never thought I'd see the car so white again.

    Alternately, a washed car which has not been properly dried will have marks on the glass. Hard water should not actually damage (etch) the glass- just leave marks. A good washing should fix that.

    TL: DR - try washing, drying, then buffing the car. Finish with a wax to protect it and then maybe you're good to go.
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    Maybe try using a claybar on the windows after you wash it?

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    Registered User nick2014wrx's Avatar
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    Check out ammo detailing on youtube. He has great vids on help. Like how to detail ur windows.. Which sounds weird but its crazy hour dirty ur windows and what not get. Best of luck with getting all the spots out. Hope the youtube channel helps


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    Quote Originally Posted by dtraill27 View Post
    Maybe try using a claybar on the windows after you wash it?
    Aye, claybar.
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    Thanks for the responses. Claying did not work. I will be taking it to a detailer and the dealer tomorrow. This seems a bit more serious than normal water marks.

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    Quote Originally Posted by nick2014wrx View Post
    Check out ammo detailing on youtube. He has great vids on help. Like how to detail ur windows.. Which sounds weird but its crazy hour dirty ur windows and what not get. Best of luck with getting all the spots out. Hope the youtube channel helps


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    Couldn't agree more, "How to Remove Water Spots and Calcium/Lime Deposits" should help get you sorted out.
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    Quote Originally Posted by DoubleDeuce View Post
    I took delivery of a CWP WRX on 4/19/14. A few days later I noticed that there are small water droplet outlines all over my windows (and possibly paint, but it is white and I cannot tell). I did some research and found that these might be hard water stains . . . .

    I have sometimes found lemon juice to be effective in removing white stains on the paint from drips in parking garages. I think they are hard water. One garage also used to use Ty-D-Bol toilet bowl cleaner (perhaps diluted). I would be careful with it.

    Good luck

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    The detailer was not able to remove the water drops using either clay or #0000 steel wool (which the dealership recommended I try when I first called them). I am taking the car back to the dealer to be assessed by the service department manager. My last resort may be to try using something like Duragloss Nu Glass, but I don't want to try that just yet.

    My hope is that he calls me crazy/stupid and proceeds to easily remove these spots. I hope I'm not being too picky because I feel there is a real problem here, but maybe I am....

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    This worries me. Hopefully the same does not occur with my STi...
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    I could swear I've seen something about hard water stains as a tsb when I was scrolling through them at work. Didn't think much of it at first since I don't have this problem...but now I can't double check cause we don't have alldata anymore

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    The funny thing is, I have not been able to spot these water marks anywhere on the paint. Granted, my car is white, but the paint feels smooth and I do not see any imperfections in any light.

    However, in the engine bay, all of the plastic parts do show water drop marks. I cannot clean these off. I imagine whatever caused them in the glass also caused them in my engine bay. My question is, how did water drops get all over my engine bay....

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    Quote Originally Posted by DoubleDeuce View Post
    The funny thing is, I have not been able to spot these water marks anywhere on the paint. Granted, my car is white, but the paint feels smooth and I do not see any imperfections in any light.

    However, in the engine bay, all of the plastic parts do show water drop marks. I cannot clean these off. I imagine whatever caused them in the glass also caused them in my engine bay. My question is, how did water drops get all over my engine bay....
    The dealerships detail or prep department most likely.

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    I was thinking of asking the dealer not to wash my car before I took delivery, but then I figured they wash every car that comes in, so what could it hurt? Maybe that was a critical error.

    The car came in on a Friday around 2:00pm and I picked it up at 9:00am on Saturday. I first noticed the spots on Tuesday, but I have to believe they were there when I took delivery as it did not rain between the time I picked it up and Tuesday. The only thing I read that can cause this kind of damage is hydorfluoric acid, which is used by some car washes. I am unsure what method they used to wash my car, but if they sprayed it with acid and then didn't dry the windows, I will be pretty upset. If that is the case, they would never admit it anyway.

    I'll see what they have to say on Wednesday and report any interesting findings.

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