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Help me read this sparkplug!

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Old Nov 17, 2018 | 09:44 PM
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cfmistry
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15 S550 4Matic, 86 560SL
Help me read this sparkplug!
Hi all,

Shade tree mechanic here who could use some help. I just changed the plugs on my '07 E63 for the first time at 63k miles. The car drives well, idles well, consumes no oil, leaks no oil. I have attached the plug for cylinder #8 - you can see there is some oil on the threads, which the other plugs didn't have. Also there is a small amount of metal debris... seems like it shouldn't be there. Any ideas what's going on?

Thanks,
Cyrus


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Old Nov 18, 2018 | 08:28 PM
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