Oil Consumption = Actual Leak
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Joined: Feb 2009
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From: Philly, NYC
E350, W140 S, C63, G55, 420SEL, Prius, Dune Buggy, Ducati
Oil Consumption = Actual Leak
So, I took my car in for the 10K service. I had to add about 4qt of oil during the first 10K of owning the car. I thought that was strange compared with my 100K+mi SEL and G55 who didn't need that much added between services. I came to the board and there were many threads on teh subject of the 6.2l engines eating oil. I accepted it as normal. I did mention it to my service advisor upon dropping it off and he commented on these engines specifically consuming oil as well. I certainly don't doubt that, but here is the tech report:
TECH REPORTED SEEING OIL LEAK AT OIL PAN AREA. RAISED VEHICLE, REMOVED UNDER CARRIAGE PANELS, FOUND THERE IS A SEVERE ENGINE OIL LEAK PRESENT. CLEANED OFF UNDER CARRIAGE AND ENGINE. TEST DROVE VEHICLE, FOUND OIL LEAK COMING FROM THE ENGINE OIL PAN. DRAINED OIL. REMOVED AND RESEALED PAN. CORRECTED OIL LEVEL. CLEANED OFF RESIDUAL OIL. TEST DROVE. RECHECKED FOR LEAKS OK.
I am glad that it was caught under the 10K service checklist, that makes me happy. Though, given the number of people who complain of this issue, I wonder if there could be a model/engine wide issue which would need a tech bulletin. I've seen it before with My G55 supercharger pulley being installed backwards lol.
Just FYI!
TECH REPORTED SEEING OIL LEAK AT OIL PAN AREA. RAISED VEHICLE, REMOVED UNDER CARRIAGE PANELS, FOUND THERE IS A SEVERE ENGINE OIL LEAK PRESENT. CLEANED OFF UNDER CARRIAGE AND ENGINE. TEST DROVE VEHICLE, FOUND OIL LEAK COMING FROM THE ENGINE OIL PAN. DRAINED OIL. REMOVED AND RESEALED PAN. CORRECTED OIL LEVEL. CLEANED OFF RESIDUAL OIL. TEST DROVE. RECHECKED FOR LEAKS OK.
I am glad that it was caught under the 10K service checklist, that makes me happy. Though, given the number of people who complain of this issue, I wonder if there could be a model/engine wide issue which would need a tech bulletin. I've seen it before with My G55 supercharger pulley being installed backwards lol.
Just FYI!
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From: Oakland, CA
'16 GTS Solar
Interesting...I'll have to look into this also as I've noticed my engine is also consuming a fair amount of oil. So far, I've added about 4 quarts over the past 13K miles. I added 2 quarts of oil about 4 months ago and no I'm getting the check engine oil level message coming on again.
Thread Starter
Member
Joined: Feb 2009
Posts: 244
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From: Philly, NYC
E350, W140 S, C63, G55, 420SEL, Prius, Dune Buggy, Ducati
Interesting...I'll have to look into this also as I've noticed my engine is also consuming a fair amount of oil. So far, I've added about 4 quarts over the past 13K miles. I added 2 quarts of oil about 4 months ago and no I'm getting the check engine oil level message coming on again.
One thing to note that I didn't bring up in my post is that there is a known issue with the oil level sensor in a fair amount of C63. Checking the actual dipstick levels is the sure way to know whether it is actual oil loss, or possible a bad level sensor.
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From: Alexandria, VA
07 E63 AMG, 10 C63 AMG, 07 E63 Designo, 07 E350, 09 C300, 07 C230
I just completed an oil service, on both of my AMGs over the weekend. I always check for leaks, as I removed the engine belly pans. Thanks for the heads up.
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Joined: Feb 2009
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From: Philly, NYC
E350, W140 S, C63, G55, 420SEL, Prius, Dune Buggy, Ducati
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From: Hong Kong/Charlotte
2010 C63
The interesting thing to me is that they did not originally raise the vehicle to change the oil, which means they were using a topsider. Interesting, but not surprising.
You are lucky the tech noticed it from the top of the engine.
You are lucky the tech noticed it from the top of the engine.
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C63 AMG
OP you are getting ripped off if your oil change is being done from the top. Both of the dealers I use for service do not allow topside changes under any circumstances - for one thing your oil cooler is not getting drained.
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Thread Starter
Member
Joined: Feb 2009
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From: Philly, NYC
E350, W140 S, C63, G55, 420SEL, Prius, Dune Buggy, Ducati
I didn't have an oil change during that time. I only added oil. It was changed during the 10K service and drained. I presume it was then that they noticed the leak. It would have been done on the lift, not from the top.
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From: Alexandria, VA
07 E63 AMG, 10 C63 AMG, 07 E63 Designo, 07 E350, 09 C300, 07 C230
I have never changed my oil by draining it from thet top, let gravity be your friend and drain it from below. It does take more time to remove all the belly pans and screws, but you can get up to 98% of the oil out this way, oh and don't forget the oil cooler it has a drain plug as well. 
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2012 C63;1971 280SE 3.5(Sold);2023 EQS 450 SUV 4 Matic (Wife's)
You may not see an oil spot on the floor from an engine leak if it drips on the belly pan and does not have a way to run off onto the floor. Then when you are driving the air movement will blow it back and not leave enough on any given part to drip on the ground/floor. Now you might have to remove the belly pans to find signs of a leak or find a thin layer of oil on the undercarriage behind the engine. Looking at the floor for leaks is not as reliable as it once was.
