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Omar Makki

Active Member
May 9, 2020
40
4
Good day gents,

I've been experiencing some vibrations that I couldn't explain for a while now with my mk3. I decided to check on the spacers and to my surprise I found all 4 of them looking like that. It seems the wheels' (aftermarket 18s) inner surface is now "engraved" into all 4 spacers. For the life of me I can't figure out how or why something like this could happen.

What could possibly be the explanation?
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Possibly a form of galvanic corrosion if the wheels and spacers are very different aluminium alloys. My spacers are hard anodised, possibly to stop this sort of thing happening ?.
 
Possibly a form of galvanic corrosion if the wheels and spacers are very different aluminium alloys. My spacers are hard anodised, possibly to stop this sort of thing happening .
Well, they're H&Rs... So to be honest, I would expect them NOT to corrode after less than 1yr of use.

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Are the wheel bolts torqued to spec? Maybe vibration caused it? It's definitely strange.
I honestly can't say yes, but I can't say no too :).

So let's say they weren't, wouldn't the bolts have to be pretty loose to cause something like that?

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I'd be more concerned with the spacer/wheel NOT being concentric!
The witness mark if different top and bottom!

Do your aftermarket wheels have concentric spacers to locate the wheels on the hub spigot?

How thick are the spacers? Did you get longer wheel bolts?


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I'd be more concerned with the spacer/wheel NOT being concentric!
The witness mark if different top and bottom!

Do your aftermarket wheels have concentric spacers to locate the wheels on the hub spigot?

How thick are the spacers? Did you get longer wheel bolts?


View attachment 27332
Im not an expert, but the setup should be a hubcentric one. The spacers and wheels are all the right dimensions. I never had any vibrations before even at high speeds.

The ones in the front are 10mm while the ones in the back are 15mm. I got longer bolts for each respectively.

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Im not an expert, but the setup should be a hubcentric one. The spacers and wheels are all the right dimensions. I never had any vibrations before even at high speeds.

The ones in the front are 10mm while the ones in the back are 15mm. I got longer bolts for each respectively.

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The inside diameter of the wheel should match the outside diameter of the spigot on the hubcentric spacer.
 
Im not an expert, but the setup should be a hubcentric one. The spacers and wheels are all the right dimensions. I never had any vibrations before even at high speeds.

The ones in the front are 10mm while the ones in the back are 15mm. I got longer bolts for each respectively.

Sent from my ONEPLUS A6003 using Tapatalk
You need to take it to a tyre place and ask them to check the wheel balance and alloys for buckles if it wasn’t doing it when first fitted and is a year later.
 
You need to take it to a tyre place and ask them to check the wheel balance and alloys for buckles if it wasn’t doing it when first fitted and is a year later.
Balancing checked... No issues there. I was actually balancing the wheels and that's when I noticed the spacers.

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I am using the exact same 15mm spacers all around with the stock cupra fl wheels and I have no problems at all (except from the occasional front rubbing which is to be expected).

The marks on the spacers are also to be expected and I don't think they are causing any kind of vibration. An easy check would be a test drive without the spacers to see if the vibration remains or it's gone.