E-Class (W211) 2003-2009

Sooty engine?

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Old 05-16-2016, 03:35 PM
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2003 E320
Sooty engine?

Hi everyone,

I'm new here and new to cars in general. I have a hand me down 2003 E320 that I'm hoping to keep alive.

I recently replaced the camshaft position sensor and I noticed that the front area of both sides of the engine are very sooty. I wiped a bit off and it is pretty thick in some areas. Looks like it might be burned engine oil? I am not sure. Any idea if this is a leak of some sort, and if so what area? Here are pictures of both sides of the engine:







Thanks,

Ed
Old 05-16-2016, 11:55 PM
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2013 ML350 Bluetec
Leaky valve cover gaskets (oil) plus dirt...
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Old 05-17-2016, 12:00 AM
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1922 Ford Model T / no OBD
Wash it and keep reinspecting.
My bet is on breather cover, and someone spilling oil at refilling.
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Old 05-17-2016, 10:17 AM
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Originally Posted by kajtek1
Wash it and keep reinspecting.
My bet is on breather cover, and someone spilling oil at refilling.
Thanks, I looked up the breather cover and found this writeup: http://www.pelicanparts.com/techarti...er_Gaskets.htm

The initial pictures seem pretty close to what my engine looks like. I'll wipe it down and see how bad the leak is.
Old 05-17-2016, 11:00 AM
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1922 Ford Model T / no OBD
With RTV I am using simple trick my commercial-mechanic friend told me.
Do the job in the afternoon, apply RTV on the cover and hand-tight only the bolts.
Let it dry overnight and then torque everything.
I did breather 2 months ago and having differential RTV on the shelf- that is what I used.
No leaks.
Old 05-17-2016, 12:12 PM
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2003 E320
Originally Posted by kajtek1
With RTV I am using simple trick my commercial-mechanic friend told me.
Do the job in the afternoon, apply RTV on the cover and hand-tight only the bolts.
Let it dry overnight and then torque everything.
I did breather 2 months ago and having differential RTV on the shelf- that is what I used.
No leaks.
Ah right that makes sense, it'll create a better seal when tightened. I'll keep that in mind. Thanks again!

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