Oil leak - what could it be. With pictures
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2012 CLS63
Engine timing cover seal?
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2008 E350 4Matic, 2011 E350 4matic
How about mentioning the year and exact model of the car?
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2014 - W212.065 - E400 ( M276.820, 3 liter Turbo) RWD not Hybrid
The 2 hoses shown by OP is from the transmission, so that is trans oil cooler
![](https://cimg0.ibsrv.net/gimg/www.mbworld.org-vbulletin/2000x1504/dscn8017_c54ee9a609ae31d82e9f43b24e8773b63dd3cc2c.jpg)
Last edited by S-Prihadi; 05-31-2021 at 05:17 PM.
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hyperion667 (05-31-2021)
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2014 - W212.065 - E400 ( M276.820, 3 liter Turbo) RWD not Hybrid
If I were you I would do this :
01. Assume that is the highest probability as actual leak point, and you are not seeing plenty of liquid oil on you plastic under carriage cover for front bumper... clean it first and wait.
02. Get a white cloth rag, not tissue, cloth. Do a single wrap of white rag and use cable tie to secure it. Make the rag long enough extend towards engine, as such it is then visible to you seeing from above
as you open the hood and without needing to remove the plastic under carriage. The white rag will absorb further leak, if any. And you can see it from above to do routine inspection till
full confimation on how bad the leak actually is.
I never dismantled that connection, so I do not know how the sealing works, sorry.
01. Assume that is the highest probability as actual leak point, and you are not seeing plenty of liquid oil on you plastic under carriage cover for front bumper... clean it first and wait.
02. Get a white cloth rag, not tissue, cloth. Do a single wrap of white rag and use cable tie to secure it. Make the rag long enough extend towards engine, as such it is then visible to you seeing from above
as you open the hood and without needing to remove the plastic under carriage. The white rag will absorb further leak, if any. And you can see it from above to do routine inspection till
full confimation on how bad the leak actually is.
![](https://cimg1.ibsrv.net/gimg/www.mbworld.org-vbulletin/965x1284/c1_62d3a66a7d1bec2328b76e47385e1d5d31d7c535.jpg)
I never dismantled that connection, so I do not know how the sealing works, sorry.
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chassis (05-31-2021)
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1922 Ford Model T / no OBD
Clean the oil, wrap the fittings with paper towels and recheck after few minutes of driving.
The air under the hood swirls in very strange directions, so the oil can show long way from actual leak.
The air under the hood swirls in very strange directions, so the oil can show long way from actual leak.
#11
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if you suspect it IS engine oil, visit a local auto parts store, and get a little vial of fluorescent oil dye. clean the area thoroughly, put the contents of the vial iin the oil filler cap and drive around for a day, then park the car in the dark and use a ultraviolet flashlight, the source of the leak should be very evident. I'd say you could do the same with the transmission fluid using a different color dye, but there's no transmission dipstick to introduce it.
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CaliBenzDriver (06-01-2021)
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2014 - W212.065 - E400 ( M276.820, 3 liter Turbo) RWD not Hybrid
I am curious on how that unique fittings works.
Some photos here I found.
![](https://i.ebayimg.com/images/g/DkYAAOSwUBpasiSw/s-l500.jpg)
![](https://i.ebayimg.com/images/g/W4cAAOSwSB1asiSw/s-l500.jpg)
![](https://i.ebayimg.com/images/g/gp4AAOSw~xlasiSw/s-l500.jpg)
![](https://s3-us-west-2.amazonaws.com/used-parts/tls/large/300295_03.jpg)
https://www.tlsautorecycling.com/sea...50/294209.html
So 1 is female and 1 is male.
Some photos here I found.
![](https://i.ebayimg.com/images/g/DkYAAOSwUBpasiSw/s-l500.jpg)
![](https://i.ebayimg.com/images/g/W4cAAOSwSB1asiSw/s-l500.jpg)
![](https://i.ebayimg.com/images/g/gp4AAOSw~xlasiSw/s-l500.jpg)
![](https://s3-us-west-2.amazonaws.com/used-parts/tls/large/300295_03.jpg)
https://www.tlsautorecycling.com/sea...50/294209.html
So 1 is female and 1 is male.
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2014 - W212.065 - E400 ( M276.820, 3 liter Turbo) RWD not Hybrid
So this is how that fittings work :
Good luck.
Good luck.