S-Class (W222) 2014-2020

Dip Stick Mystery....

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Old 10-09-2017, 09:45 AM
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2014 S550 AMG, 2017 XT5
Dip Stick Mystery....

Ok, I'm not going crazy.... After car has been sitting for a day, when I check the Dip Stick, it is bone dry. After inserting and removing again, level is registering and perfect.
1. Car is cold and not started for at least 1 day
2. Yes, the dipstick was seated all the way.
3. Can recreate the issue.

I just cant figure out how this is possible..... Very strange... I saw another post where the owner thought his oil was severely low and added a quart then rechecked.... He should now be about a quart over....

Any ideas....
W222 Gray Dip Stick, Rear Drivers SIde.
Old 10-09-2017, 10:34 AM
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Originally Posted by Nice Ride
Ok, I'm not going crazy.... After car has been sitting for a day, when I check the Dip Stick, it is bone dry. After inserting and removing again, level is registering and perfect.
1. Car is cold and not started for at least 1 day
2. Yes, the dipstick was seated all the way.
3. Can recreate the issue.

I just cant figure out how this is possible..... Very strange... I saw another post where the owner thought his oil was severely low and added a quart then rechecked.... He should now be about a quart over....

Any ideas....
W222 Gray Dip Stick, Rear Drivers SIde.
Air trapped in the dipstick tube? Removing dipstick vents the tube and allows oil to fill the tube to the correct level. How it fills with air I have no idea and I'm just guessing here.
Best Regards,
Larry F
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Old 10-09-2017, 01:09 PM
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Originally Posted by Coonquest
Air trapped in the dipstick tube? Removing dipstick vents the tube and allows oil to fill the tube to the correct level. How it fills with air I have no idea and I'm just guessing here.
Best Regards,
Larry F
I would have never thought of that!!! Lets see if anyone else chimes in or has the same problem....
Old 03-07-2018, 01:21 AM
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Originally Posted by Nice Ride
Ok, I'm not going crazy.... After car has been sitting for a day, when I check the Dip Stick, it is bone dry. After inserting and removing again, level is registering and perfect.
1. Car is cold and not started for at least 1 day
2. Yes, the dipstick was seated all the way.
3. Can recreate the issue.

I just cant figure out how this is possible..... Very strange... I saw another post where the owner thought his oil was severely low and added a quart then rechecked.... He should now be about a quart over....

Any ideas....

W222 Gray Dip Stick, Rear Drivers SIde.
Originally Posted by Coonquest
Air trapped in the dipstick tube? Removing dipstick vents the tube and allows oil to fill the tube to the correct level. How it fills with air I have no idea and I'm just guessing here.
Best Regards,
Larry F
I noticed this also on mine and was quite surprised, glad I didn't put anymore oil in it. It was already past the full mark on the reinsertion. Anyone else care to chime in?
Old 03-07-2018, 10:47 AM
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Before adding any oil to the car.. first, recheck the dipstick like you did to make sure there is any oil in the engine. Next thing to remember is that there is a procedure for checking the oil per Mercedes. The engine must be at normal operating temperatures ( > 80*C), you cannot correctly check the oil level with a cold engine. After the engine is warmed up, you must turn the engine off and it must be off for at least 5 minutes before you can accurately check the level with the dipstick. If you think the oil level is low and your engine and engine oil is cold, you will just end up over filling the engine.
Old 03-07-2018, 01:27 PM
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Mercedes oil dipsticks are color coded when to check level.

Red, means check at normal engine oil operating temperature (takes a while to get to motor oil to at least 185 deg, unlike coolant temperature).

Blue/Grey, means check at cold engine temperature.
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Old 03-10-2018, 05:41 AM
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18 AMG GTC and 22 F150 Limited. Past owner 16 Maybach, 17 Brabus Smartcar, 06 Ford E150, and 22 G70
Crap my 2016 Maybach does NOT have a dipstick. You sit in the drivers seat with the eigine off and have the computer check the oil for you. I am not kidding. If it runs low it will tell you to add whatever amount is needed. Crazy.
Old 03-10-2018, 09:02 AM
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Originally Posted by Katie22
Crap my 2016 Maybach does NOT have a dipstick. You sit in the drivers seat with the eigine off and have the computer check the oil for you. I am not kidding. If it runs low it will tell you to add whatever amount is needed. Crazy.
My last Porsche 911 was the same. No dipstick, purely digital through dash. 2013 991.1
Old 03-10-2018, 10:03 AM
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My 2007 Porsche Boxster S as well. All reported by the computer, not a dipstick. A bit overkill but I suspect given how the mid engine design works it would be tough to provide a dipstick in a reasonable location.

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