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Hello, experts. First, the car: w166, ML350 Bluetec,om642.826.
I have a nigtmare during oil leak in rear rigth side of engine.The oil is dripping down rear rigth side of engine. Between engine and transmission, It comes from longer up, over the bellhousing. I used a endoscope, and my turbo pidestall is wet of oil at the rigth side. ( see picture) I was shure it was the pidestall gaskets. Removed the turbo, replaced over and under pidestall metal gaskets. But, however, it continue leak. I have replaced the pidestall gaskets, engine breather and turbo intake seal (red). But nu luck.. All people say, its the oil cooler, but its not. I replaced the oilcooler seals 2 years ago, and leak from this seals appears at the other side of the engine. This weep hole from cooler leak is at left side. So what can be my problem?? Is it possible its from the turbo sealing, so the turbo itself has a external leak? Or can it be the rigth sylinder head gasket?? I need some good tip
Not the oil separator, its also new. Its dry arround the oilseparator, Its at the rigth sylinder head, between engine and firewall. The leak appears more in the middle, but ends up at the rigth side of the bellhousing and under the car.
Not the oil separator, its also new. Its dry arround the oilseparator, Its at the rigth sylinder head, between engine and firewall. The leak appears more in the middle, but ends up at the rigth side of the bellhousing and under the car.
Thats the big question.. Personaly, i dont know, i am asking for tip because I dont understand this. The situation is that oil comming down the rigth side of the turbo pidestall, and end up downwards the rigth side of bellhousing. (see picture). Probably from the turbo bearing. Very hard to detect, it is so tight. Is it possible the red turbo intake seal is cheating me? It looks dry there also, and the red gasket is new. Can a leak from the turbo air intake seal cause oil downwards the pidestall?
Thats the big question.. Personaly, i dont know, i am asking for tip because I dont understand this. The situation is that oil comming down the rigth side of the turbo pidestall, and end up downwards the rigth side of bellhousing. (see picture). Probably from the turbo bearing. Very hard to detect, it is so tight. Is it possible the red turbo intake seal is cheating me? It looks dry there also, and the red gasket is new. Can a leak from the turbo air intake seal cause oil downwards the pidestall?
What are the main list of causes for this oil leak in the search results? The OM642 engine, which is in your vehicle, is well documented on this site.
What are the main list of causes for this oil leak in the search results? The OM642 engine, which is in your vehicle, is well documented on this site.
I cant read everyting. But the main reason of om642 oil leak are related to oilcooler seals. But that drains at the other site of the bellhousing. Cant find anything spesific to the rigth site. And thats why im asking here.
I cant read everyting. But the main reason of om642 oil leak are related to oilcooler seals. But that drains at the other site of the bellhousing. Cant find anything spesific to the rigth site. And thats why im asking here.
Best course of action is to keep digging for the source on your vehicle, and read more of the search history on this site. You have to help yourself to a degree, so that others can help you solve the problem.
The oil leak is a pain, for sure. The solution is on this site somewhere.
Same car, engine and in the same area I have an oil leak.
I'm planning to change a couple of seals, hopefully it will help.
If it will help, I will let you know.
Interessting Because all 642 oil leaks i find appears at the other side of bellhousing. Anyway, i sucpect the turbo intake seal. And whats tricky is that even if you replace it, it will come oil for some time. Because the oil is "build up" over time, and is stored upwards. This seal is absolutely recomended to replace every time you disconect the intake y-pipe from turbo. Yesterday i found an interesting post regarding this seal, i copy it in here. Promise me to post back in my thread if you solving your leak, i am very interesting in what your main leak problem is. Becauce its simular to mine. Here is whar i found:
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.
