Appearance & Detailing Interior & Exterior Appearance Modifications

Corroding clear coat, what from?

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Old Mar 7, 2013 | 10:42 AM
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Default Corroding clear coat, what from?

I've had these wheels for nearly two years and never had an issue. I use hot water and simple green to clean them. Fast forward to last week, I took my car to a dealer for some trouble shooting help. They washed it and I got this:

Corroding clear coat, what from?-kdm9ryj.jpg

There is a cream color chemical affect going on around all four wheels, this being the worst. Its the clear coat peeling, corroding, and the wheels looking less than lovely.

It snows here, we get de-icer pretty good but considering I've driven through two winters without an issue. I'm suspecting the dealer put something on that corroded it.

Ideas?
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Old Mar 7, 2013 | 10:59 AM
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Yeah my guess is some moron at the dealer used some kind of hydrochloric-acid based chrome wheel cleaner, which doesn't play nicely with polished aluminum
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Old Mar 7, 2013 | 11:15 AM
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Sup Tony! Agree with above, looks like someone used an acidic cleaner rather than one with a balanced pH.
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Old Mar 7, 2013 | 11:16 AM
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More importantly, does this look like a deicer issue?
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Old Mar 7, 2013 | 11:20 AM
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I would think that if it was from the state putting de-icer down then it wouldn't be in runs down the wheel. I bet the dealer used a chemical on it. Which you would think the BMW dealer would know better
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Old Mar 7, 2013 | 02:16 PM
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What a bummer!

I'd immediately take it back to them and make sure they are aware. Ask them what they used to "clean" it with. Hopefully they are willing to make it right.
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Old Mar 7, 2013 | 02:28 PM
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FWIW, I think I've heard that Simple Green isn't good around aluminum either. I know these are coated, but it may be best to use something else.
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Old Mar 7, 2013 | 04:03 PM
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Originally Posted by Atrus_SS
FWIW, I think I've heard that Simple Green isn't good around aluminum either. I know these are coated, but it may be best to use something else.
I used an incredibly diluted solution of Simple Green.

I took the car back this morning, they are going to get back with me. I've made it clear that the circumstances this happened in warrant them to find a solution considering I've never had issues. If they are willing to work with me that will be great, if not - I'll file small claims.
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Old Mar 7, 2013 | 04:14 PM
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It looks like it could be polished back. My neighbor used a chrome wheel cleaner on his c5 vette polished wheels. I polished them back for him. See if the dealer would pay to have that done professionally
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