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Thread: 2016 CX-9 20 inch rims turning black

  1. #1
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    2016 CX-9 20 inch rims turning black

    About a few months back, I noticed that my CX-9 20 inch rims were losing the grey finish from them. It wasn't peeling but just a lot of black was showing up. The clearcoat on the rims was still intact. After speaking with my dealership they asked that I open a case with Mazda, which I did. Mazda then called the dealership and it happen to be that the Mazda rep was going to be in town today. I met up with them at the dealership and he looked them over and asked if I washed the rims with anything other than soap and water. I told him no, because I really on use soap and water.
    He said there was a TSB they have that shows certain chemicals can cause this. He said because he see's how well I take care of my car it could be something that was either added to the rims at the port or at some point. They will now be replacing all 4 rims instead of refinishing them because he is worried it may seep through the finish if we just have them redone.
    Gotta admit this was pretty great of them stepping up and doing this. Here are some pics of the rims.

    IMG_5172.JPG

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  3. #3
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    2016 Mazda CX-9 Touring Soul Red

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    I'll take them off your hands!

  4. #4
    Registered Member JPL's Avatar

    2018 Mazda6, CX-9

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    Hopefully this is a limited case. Talk about a tremendous cost if Mazda had to replace all CX-9 20's.

  5. #5
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    Thanks for the heads up, morenar. Will be keeping an eye out for this. I use an all natural dish washing liquid on all my vehicles and never had a problem, but I'll now start checking more carefully, these particular rims.

  6. #6
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    Quote Originally Posted by Cessna CJ4 View Post
    Thanks for the heads up, morenar. Will be keeping an eye out for this. I use an all natural dish washing liquid on all my vehicles and never had a problem, but I'll now start checking more carefully, these particular rims.
    Doesn't dish washing soap remove any wax and isn't great for paint unless you're stripping it?

  7. #7
    Guest2018
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    Quote Originally Posted by aka_ View Post
    Doesn't dish washing soap remove any wax and isn't great for paint unless you're stripping it?
    I use a plant based product with no phosphate from Seventh Generation and I have no problem with stripping wax or damaging the clear coat. The clear coat itself has been sealed with an aircraft wax - using a 3 layer application. In the interim between washes I use Aerolon (once every couple/few of months) as a polish and Meguiars as a more routine spray detail to keep things up to date.

  8. #8
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    2016 Mazda CX-9 GT-AWD

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    Thank you for the heads up.
    I've noticed that my wheels were turning black for a while.
    I finally went to a dealer and complained about it, they contacted Mazda.
    Mazda agreed to changed them.
    Waiting for new ones to come in.

  9. #9
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    '16 CX-9 GT AWD Machine Gray

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    Are these for the 2016 models? Or did they address this from 2017 and forward

  10. #10
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    Mazdaspeed 6

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    My wife and I noticed the same thing happening to to her 20 inch wheels. I guess I will contact the Mazda dealership. I did clean the wheels witha wheel cleaner. Will that be an issue? It is a 2016 model.
    Mine: 2006 Mazdaspeed 6. Modded

    Wife's: 2016 CX-9 GT Titanium.

  11. #11
    Registered Member TravL350's Avatar

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    Mine have been doing the same thing over the last year, getting darker and darker. It didn't really bother me, (in fact it looks kind of cool!) except that now they are starting to peel as well. 2016 year model. I just went to the dealer today and they are contacting Mazda so we'll see.

  12. #12
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    My 2016 Sig had this happening on all 4 wheels, and my local Mazda dealer called it and got all 4 replaced (no charge). I had ~36k miles at the time.

    They said that they thought there was debris or finger print oil on the rim before it was painted which caused those areas to fail.

  13. #13
    Registered Member TravL350's Avatar

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    Well done Mazda customer service

    Quote Originally Posted by TravL350 View Post
    Mine have been doing the same thing over the last year, getting darker and darker. It didn't really bother me, (in fact it looks kind of cool!) except that now they are starting to peel as well. 2016 year model. I just went to the dealer today and they are contacting Mazda so we'll see.
    Dealer will replace all 4 wheels next week under warranty, no questions asked. They obviously know this is a common problem. Anyway, glad they are doing the right thing. Hopefully other owners get this taken care of as well before warranty is up.

    Wheels when brand new:
    IMG_0485.JPG

    Wheels today (notice how bright the wheels on my 20 year old Jeep are by comparison...):
    IMG_0406.jpgIMG_0404.jpg
    Last edited by TravL350; 03-14-2019 at 09:02 AM. Reason: add images

  14. #14
    Work in Progress sm1ke's Avatar
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    Oh yeah, that's some pretty clear discoloration going on. Glad to hear it's going to be take care of. How many miles on your rig?
    Sigs are visible only in your first post on a page. To change your thread display preferences, click here and enable 'Always Show Signature'.

  15. #15
    Registered Member TravL350's Avatar

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    Quote Originally Posted by sm1ke View Post
    Oh yeah, that's some pretty clear discoloration going on. Glad to hear it's going to be take care of. How many miles on your rig?
    I've got about 32,000 mi. on it. First noticed the issue about a year ago, though, but didn't think much of it until I saw it had started peeling off in several places!

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