What is this material from do you think? One little chunk came out on the drain plug magnet and I spent 30 minutes fishing the rest out with a magnet. This engine has 300k on it and is still running great with no noises. Found this on a random oil change. This engine had a severe turbo failure in 2010 before I got it. Think it took 9 years to come out?

 

Maybe part of the turbo bearing?
I lost a vacuum pump bearing and it came out the drain years later.

What is the size compared to?
Size of a quarter?

 

One of them is a Craftsman wrench...I can't tell you about the others......Ben

 

Yup, I would say turbo debris too. I just fixed an '86 MB 300 SDL that had 2 turbos go and that debris looks very familiar...Mark

 

Thnaks everyone. Its about the size of a silver dollar, a tad smaller. Magnetic. Looks like part of a failed casting. Was skeptical they would linger in the crankcase after 9 years and 7 oil changes but can't think of anything else in engine that would look like this. I checked turbo thats on it now and its mint- smooth as butter. Have run 3 oil analysis over the years on this engine and other than the first one when I got it, they checked out well. Not so much after the turbo failure. I'll see if I can find it and post it.

 

It was amazing the debris that I found in the 300 SDL, from 2 turbos. Benz put in an angled, second oil catcher/pan just below the turbo oil return line. It was ingenious because 90% of the turbo debris was in that pan. There are many places that debris like that can hide and avoid being drained out during an oil change...Mark

 

Sorry, but that was hilarious!

 

I saw the wrench but I was not sure how wide the handle was for a comparison,.