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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Wash, Wax, Detailing and Cosmetic protection/repairs > Brembo calipers on new 5.0 stained. Any ideas what can fix?



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      03-07-2011, 10:17 PM   #1
EpicE90
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Brembo calipers on new 5.0 stained. Any ideas what can fix?

Took delivery of my car and noticed that the calipers had white drip lines down them. At first I believed it was just some water drips and could be cleaned quickly. However I tried Meguiars APC on a towel and rubbed with good pressure. Nothing. Then mag and aluminum polish. Nothing. Steel wool. ZERO. So is there anything anyone would suggest? Heres a pic of what they look like.
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      03-07-2011, 10:22 PM   #2
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I suggest taking it back to the dealer and let them figure it out. GL
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      03-07-2011, 10:33 PM   #3
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Quote:
Originally Posted by McMuffin View Post
I suggest taking it back to the dealer and let them figure it out. GL
It was a dealer trade from out of state . I told my dealer not to prep the car at all and they didnt. I picked the car up last friday and got it for under invoice im sure theyre less then willing to do anything. So for right now the only thing ive used that masks this issue a bit is 303 aerospace protectant. But after 1 minute of the brakes getting any bit hot that is useless too.
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      03-08-2011, 07:15 AM   #4
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Looks like someone sprayed a harsh wheel cleaner on the calipers. The surface is textured and not glossy correct?
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      03-08-2011, 07:18 AM   #5
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looks like someone tried bleeding the brakes without a hose on the bleeder valve, brake fluid eats EVERYTHING!!!
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      03-08-2011, 07:31 AM   #6
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Quote:
Originally Posted by ScheerSpeed View Post
Looks like someone sprayed a harsh wheel cleaner on the calipers. The surface is textured and not glossy correct?
Correct . My original thoughts were that some sort of acidic wheels cleaner was used.

Kevin@akmotorwerk- That's possible . But it is a brand new car so i don't see a reason they would have needed to do that.
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      03-08-2011, 10:18 AM   #7
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should be covered under the bumper-to-bumper warranty I'd think. You're local dealer should be able to help (and they shouldn't mind helping as they'll get paid from Ford).
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      03-08-2011, 10:51 AM   #8
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damn OP, sorry to hear. Hope you get that figured out.

But i had to respond to say....Nice car! the new stangs are no joke
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      03-08-2011, 01:39 PM   #9
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Originally Posted by kmoto335i View Post
damn OP, sorry to hear. Hope you get that figured out.

But i had to respond to say....Nice car! the new stangs are no joke
Thanks for the sympathy and the compliment . I'm really loving the car besides this minor issue.
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      03-08-2011, 04:11 PM   #10
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i don't think it is brake fluid. it does eat everything, but it doesn't eat metal or glass

Plus there is no reason to bleed on a brand new vehicle.

It does look like an acidic wheel cleaner that has etched the metal. The calipers aren't painted because that affects their ability to get rid of heat. You could try using the same cleaner and wiping it away and then rinsing with water immediately, but there is obiviously a risk of increased etching.
Scrub with baking soda? That works on garage floors with battery acid on them.
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      03-08-2011, 10:14 PM   #11
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have em painted/powdered to a nice new color!!
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      03-09-2011, 12:02 AM   #12
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Quote:
Originally Posted by ScheerSpeed View Post
Looks like someone sprayed a harsh wheel cleaner on the calipers. The surface is textured and not glossy correct?
this


My wife took my car to a detailer while i was in Iraq and he used wheel acid and rusted my calipers the clear coat on my (beautiful 162s) wheels was peeling.
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      03-09-2011, 08:51 PM   #13
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have em painted/powdered to a nice new color!!
Thats what im planning to do. Probably just gonna do black but im also debating doing grabber blue calipers.
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      03-09-2011, 10:42 PM   #14
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Quote:
Originally Posted by Kevin@AKMotorwerk View Post
looks like someone tried bleeding the brakes without a hose on the bleeder valve, brake fluid eats EVERYTHING!!!
this.
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      03-11-2011, 11:30 PM   #15
Craig@SupremePower
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Quote:
Originally Posted by EpicE90 View Post
Thats what im planning to do. Probably just gonna do black but im also debating doing grabber blue calipers.
dooo ettttt!!!
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