GL Class (X166) 2013-2015 after facelift became GLS (X166)

What is in my oil pan?

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Old Jan 15, 2025 | 12:58 PM
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What is in my oil pan?

My fuel injectors were leaking fuel into my oil pan. Mechanic dropped the pan to clean and found these shavings. Any idea of the source? He is concerned.
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Old Jan 15, 2025 | 03:12 PM
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Get a Blackstone analysis. He is going for a fishing trip in your wallet.
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Old Jan 16, 2025 | 12:46 PM
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2003 E320 4matic wagon
Originally Posted by frogger42
My fuel injectors were leaking fuel into my oil pan. Mechanic dropped the pan to clean and found these shavings. Any idea of the source? He is concerned.
Can you get better close-up photos of the shavings? Are particles all the same size? What about the shape? What is the color of them - all the same or varying? size, shape & color transmit a lot of information. Possible to measure particle size? Think they are parts of the fuel injector-seems unlikely but….

As an exercise in thinking this scenario through to its conclusion, what would you do if its piston skirt particles or bearing particles or cam particles or high pressure fuel pump to cam particles?

Sell it immediately, get it fixed, drive it until it lets go? Each path dependent upon your situation. It could run for another 20k miles, it could blow up tomorrow, particles could have been seeded there by some unknown means not from inside your motor.

I think that if you were of the mindset to keep driving or fix, start with inspecting fuel injectors tracking respective cylinder #. Fix bad injector(s), perform dynamic compression analysis and a fuel pressure analysis at a reputable business, whether dealer or indy. Again, match cylinder number- is one cylinder showing scoring via boroscope?
next steps depend upon $, time, attachment to vehicle.

Let us know what is learned.
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