overfilled oil
Thread Starter
Newbie
Joined: Jul 2017
Posts: 14
Likes: 0
2011 C207 E350 cabriolet
overfilled oil
I realized that the dealer overfilled my oil (M272) by about 2 quarts roughly 2,500 miles later. I’ve extracted the excess, and I have three questions:
1. Is there an electronic overfill/ underfill warning in this car? I know that it doesn’t have a mechanism for checking the oil electronically.
2. Has this likely caused damage to the engine/ is there any way to tell? Everything has seemed to run fine, and I didn’t notice any bubbling/ foam on the dipstick before removing the excess oil. How much leeway does the M272 have?
3. I notice the oil level is significantly higher after letting it cool for several hours, is this the level I should be considering? (Instead of five minutes after shutdown as the manual suggests)
1. Is there an electronic overfill/ underfill warning in this car? I know that it doesn’t have a mechanism for checking the oil electronically.
2. Has this likely caused damage to the engine/ is there any way to tell? Everything has seemed to run fine, and I didn’t notice any bubbling/ foam on the dipstick before removing the excess oil. How much leeway does the M272 have?
3. I notice the oil level is significantly higher after letting it cool for several hours, is this the level I should be considering? (Instead of five minutes after shutdown as the manual suggests)
MBWorld God!
Joined: Dec 2019
Posts: 32,222
Likes: 6,281
I realized that the dealer overfilled my oil (M272) by about 2 quarts roughly 2,500 miles later. I’ve extracted the excess, and I have three questions:
1. Is there an electronic overfill/ underfill warning in this car? I know that it doesn’t have a mechanism for checking the oil electronically.
2. Has this likely caused damage to the engine/ is there any way to tell? Everything has seemed to run fine, and I didn’t notice any bubbling/ foam on the dipstick before removing the excess oil. How much leeway does the M272 have?
3. I notice the oil level is significantly higher after letting it cool for several hours, is this the level I should be considering? (Instead of five minutes after shutdown as the manual suggests)
1. Is there an electronic overfill/ underfill warning in this car? I know that it doesn’t have a mechanism for checking the oil electronically.
2. Has this likely caused damage to the engine/ is there any way to tell? Everything has seemed to run fine, and I didn’t notice any bubbling/ foam on the dipstick before removing the excess oil. How much leeway does the M272 have?
3. I notice the oil level is significantly higher after letting it cool for several hours, is this the level I should be considering? (Instead of five minutes after shutdown as the manual suggests)
Thread Starter
Newbie
Joined: Jul 2017
Posts: 14
Likes: 0
2011 C207 E350 cabriolet
I realized that the dealer overfilled my oil (M272) by about 2 quarts roughly 2,500 miles later. I’ve extracted the excess, and I have three questions:
1. Is there an electronic overfill/ underfill warning in this car? I know that it doesn’t have a mechanism for checking the oil electronically.
2. Has this likely caused damage to the engine/ is there any way to tell? Everything has seemed to run fine, and I didn’t notice any bubbling/ foam on the dipstick before removing the excess oil. How much leeway does the M272 have?
3. I notice the oil level is significantly higher after letting it cool for several hours, is this the level I should be considering? (Instead of five minutes after shutdown as the manual suggests)
1. Is there an electronic overfill/ underfill warning in this car? I know that it doesn’t have a mechanism for checking the oil electronically.
2. Has this likely caused damage to the engine/ is there any way to tell? Everything has seemed to run fine, and I didn’t notice any bubbling/ foam on the dipstick before removing the excess oil. How much leeway does the M272 have?
3. I notice the oil level is significantly higher after letting it cool for several hours, is this the level I should be considering? (Instead of five minutes after shutdown as the manual suggests)
I know the manual says that you can check the level after the car has been off for only five minutes, but it seems that this is likely not enough time (at least to fill to max)?
Last edited by hacketta; Aug 29, 2024 at 11:06 PM.
MBWorld God!
Joined: Dec 2019
Posts: 32,222
Likes: 6,281
I think I know what happened: they must have checked the level immediately after turning the car off for five minutes and made sure the level was near the max. After removing two quarts and being off for only five minutes, the level is at the bottom of the range. When the car sits over night, this is towards the top of the range.
I know the manual says that you can check the level after the car has been off for only five minutes, but it seems that this is likely not enough time (at least to fill to max)?
I know the manual says that you can check the level after the car has been off for only five minutes, but it seems that this is likely not enough time (at least to fill to max)?
MBWorld Fanatic!
Joined: Jun 2011
Posts: 2,118
Likes: 271
'13 GLK350 4matic,'10 C207,'15 GLA250,'07 Honda Odyssey, '18 GLE 43, '24 EQS 580
I dunno how people screws up oil change. It is very simple. Drain the oil and look at how much oil was taken out then check the manual to see the engine's oil capacity then if it evens out refill the same amount. If the oil you took out is same as what the manual states, no need to guess work and do the wait for X minutes thing.
MBWorld Fanatic!
Joined: Jun 2021
Posts: 3,110
Likes: 1,346
From: Fleriduh
W212 E63S Wagon - GSL580 - E63 - E350 - C300
Trending Topics
Thread Starter
Newbie
Joined: Jul 2017
Posts: 14
Likes: 0
2011 C207 E350 cabriolet
Would an oil examination service like Blackstone likely be able to detect internal damage from this? RPMs were kept low during this period, so I have my fingers crossed it’s okay.
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
Super Member
Joined: Sep 2017
Posts: 738
Likes: 163
From: Orlando, FL
2016 E400 Coupe (C207)
I dunno how people screws up oil change. It is very simple. Drain the oil and look at how much oil was taken out then check the manual to see the engine's oil capacity then if it evens out refill the same amount. If the oil you took out is same as what the manual states, no need to guess work and do the wait for X minutes thing.
MBWorld God!
Joined: Dec 2019
Posts: 32,222
Likes: 6,281
Yes, it is correct that the machine will automatically calculate the oil that is correct for the vehicle, you assumption that they did not completely draining the old oil/or suction out from dipstick for vehicles with a dipstick is also correct, it is a common occurrence from experience.
Thread Starter
Newbie
Joined: Jul 2017
Posts: 14
Likes: 0
2011 C207 E350 cabriolet
Now that I’ve gotten the oil within the range on the dipstick (top half when cold and bottom half after being off for five minutes) the “check oil at next refueling” light comes on… Is this sensor likely broken? It never warned me of the oil being too high, and I don’t imagine the dipstick could be misleading 🙃
MBWorld Fanatic!
Joined: Jan 2024
Posts: 2,515
Likes: 900
From: DFW
SL63
High oil quantity is not terribly destructive. It will cause higher than normal pressures. If the pressure is long enough or powerful enough, if will look for the weakest part of the engine to leak out. Look for oil leaks, especially around seals, breathers, and dipstick, if you have one.
