Cracked alloy wheel..

[justin220]

Just spotted this on the rear of my N420, any suggestions? Presume it won't be repairable. Absolutely no idea how it's happened.

[R129 300SL]

Possibly powder coated wheel refurb.

Known to damage forged wheels

[justin220]

I believe they were painted rather than powder coated, if that makes any difference?

[Graze01]

R129 300SL said:

Possibly powder coated wheel refurb.

Known to damage forged wheels

is it due to the heat process? interested to know why

Graeme

[Graze01]

justin220 said:

Just spotted this on the rear of my N420, any suggestions? Presume it won't be repairable. Absolutely no idea how it's happened.

thats bad luck, just had a similar thing happen on an audi RS4 wheel - no idea how (pothole probably)

wasnt prepared to risk getting it repaired - too important and not something you would want to fail

hope you can find a replacement

Graeme

[R129 300SL]

Graze01 said:

is it due to the heat process? interested to know why

Graeme

Yes . That's the theory. Lots of stuff on internet about this. The wheel is usually heated to over 250c to melt the powder coat on.

This interferes and weakens the alloy. More so aluminium alloy: safer to paint

[Sunray3006]

If you contact Rimstock in Bromsgrove, they will be able to repair / replace this for you as they make the wheels for AM.

http://rimfurbish.co.uk/

Hope that helps

[justin220]

Thanks for the replies. I'm going to send the car back to the dealers. I would have thought if I had hit anything like a pot hole, strong enough to crack a spoke, then I would have expected the tyre to have popped. Still holding pressure which is odd...

[sukh_m]

Make sure you replace the alloy, just not worth risking a repair and your own safety.

[mikey k]

sukh_m said:

Make sure you replace the alloy, just not worth risking a repair and your own safety.

This
Never had an issue with powder coat, it doesn't get to 250C