After 630miles I am missing ~2 liters.
No leaks that I can see ,Cooling water is clear. the oil itself is clean (no water marks in it)
The question is :how much will it still be "normal" for 102,000 miles on it.
Please advice,
New MBZ owner

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Shmulik

Valve guides. Enjoy!
While you have the valve train and cylinder head out, have a sportier valve profile made and the head shaved a few thou.
Might as well try to get 150kw out of it!

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Andrew
300e 294,000mi
380sel 185,998mi
380se 309,980mi

Sounds more like valve seals to me. My 88TE was using a similiar amount of oil @ 115,000 miles, I had the seals done and I later re-sealed the upper chain cover (minor leak). My engine has been clean for 2 plus years now. I use no oil in between changes. Currently at 170,000 and going strong.

I think the valve stem seal job was about $400.00. I would look into that before jumping into removing the head. If you had 200k on the car then I would be inclined to think guides.

EJC