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M5 E39 2001
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Discussion Starter · #1 ·
Hi guys!

Im changing spark plugs and some other stuff as we speek. Got this brilliant idea to check through the spark plug holes with an endoscope..Daaah :( and found this in cylinder 6:

Output device Computer Gadget Communication Device Audio equipment


Seems pretty toasted to me? I’m guessing my maintenance worl this winter doesn’t stop with just spark pligs and valve cover gaskets…

Notes: The engine has 100k miles and runs fine.
 

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2,167 Posts
Normal level carbon buildup. Nothing to worry about.
 
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