[W126 Coupe] Fouled Spark Plug

[Henry Viveiros]

Thanks, Marcus - I'll give it a try. The first time the Mercedes dealership
found the problem and replaced the plug. That was a few months ago, and the
plug end was coated with lots of black "stuff" so that the insulated cone
and the "L" shaped tip were all encased.

This time the plug was coated with a somewhat hard substance that I cleaned
off with BrakeKleen and an Exacto knife. Now that it is relatively clean, I
will remove the plug again and see what it looks like. I just bought a new
spark plug socket so I'm eager to go.

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