Correct engine oil reading on W212

[future400]

I just had the engine oil changed on my 2012 E350 at an independent shop and it was a frustrating experience. I HATE IT when they overfill the oil, and I told the service advisor that I would check. When I follow the owner's manual to a "T" it says to warm the engine to operating temperature and then turn it off and wait for 5 minutes and then read the dipstick. When I did that, it was over max line. I took it back and the mechanic balked at waiting 5 minutes, but when I told him that the owner's manual said so, he waited and sure enough it was over full. He used a sucking device and pulled out about 1/2 to 3/4 of a quart and that brought the oil back to the full line.

I have checked it several times the same way and it is at the full/max line. When I let it sit over-night, it reads over the max line. Perhaps that doesn't matter, or should I have more oil pulled out?

I have been checking engine oil levels for nearly 50 years, but newer cars seem harder to read consistently than older ones.

 

[JC220]

I just had the engine oil changed on my 2012 E350 at an independent shop and it was a frustrating experience. I HATE IT when they overfill the oil, and I told the service advisor that I would check. When I follow the owner's manual to a "T" it says to warm the engine to operating temperature and then turn it off and wait for 5 minutes and then read the dipstick. When I did that, it was over max line. I took it back and the mechanic balked at waiting 5 minutes, but when I told him that the owner's manual said so, he waited and sure enough it was over full. He used a sucking device and pulled out about 1/2 to 3/4 of a quart and that brought the oil back to the full line.

I have checked it several times the same way and it is at the full/max line. When I let it sit over-night, it reads over the max line. Perhaps that doesn't matter, or should I have more oil pulled out?

I have been checking engine oil levels for nearly 50 years, but newer cars seem harder to read consistently than older ones.

Just keep doing this:

When I follow the owner's manual to a "T" it says to warm the engine to operating temperature and then turn it off and wait for 5 minutes and then read the dipstick.

And it will be fine that is the correct way to read the oil level. There will naturally be more oil drained into the sump from higher up when it sits all night but that is normal.

This is frustrating and most dealers and shops will not even read the dipstick nowadays, indeed some cars no longer have a dipstick even my 2003 S600 doesnt have one. They read the service info and if it says add 8L for example they will just add 8L and close the hood. Piss poor practice but that's how mistakes happen.

This happened to my low miler S280 which went to the dealer for an oil change for its service history to be complete. They overfilled it also and by quite alot. And this is also ignoring MBs own service bulletin to advise the oil should actually not exceed more than halfway up the dipstick on that particular car. Which I also left a hardcopy of in the car..... you can't fix stupid I guess.