I went in for a routine check to a new mechanic that was closer to my house. When I got the car back and took it for a drive I experienced a "blow by" due to the oil level being to high. This only lasted about 5 seconds with the engine revving and gray smoke blowing out the tail pipe. I shut of the engine pulled over and called a tow truck. We towed the car to the mechanic. The mechanic was in and pumped out a couple of quarts of oil. Ran the engine till no more gray smoke came out. I drove home and noticed the oil gauge was at about 2 where it would always be at 3 (max).
I took it back and the mechanic said the gauge was faulty. Well a week or so later the turbo went out.
I found another mechanic told him what happened and he has been working to figure it out. He is a diesel mechanic but not a Mercedes specialist. He found there was a kink in a metal tube that feeds oil to the turbo (?) and straightened it out, has rebuilt the oil pump and while doing so found some remnants of plastic in the oil pump housing (?). He tested the oil gauge and found it to be in good working order .I will be speaking to him tomorrow to see what's the status.
I talked to the mechanic today Monday 11/8 and here is what he said:
Worked on the car today, oil filter pressure valves did not fix the
problem, but I did find a ton of debris in there(pieces of plastic etc.)I
think next step is to pull the oil pan and take a look for debris or
something else obvious, thats the only other option at this point. Oil
pressure gauge works, by the way, we applied up to 60 psi of shop
air(which is approx oil pressure of most diesel engines) to the valve and
it works normally, so we know that the gauge is telling us the truth, I'll
keep you updated
We are basically up against that oil pressure thing. I know a lot of mechanics would say to put another engine in it and be done with it. So, the research that I did came up with some issues with the oil pump and debris getting stuck in it causing this problem (turning into a "can o' worms" scenario"). I don't want to spend all of your money trying to troubleshoot it. I have some more info regarding this, but we should talk beforehand.
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