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M-Class (W164) 2006-2011: ML280CDI, ML320CDI, ML420CDI, ML350, ML500, ML550

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Old 12-12-2010, 04:45 PM   #1
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OIL LEAK (Photos inside)... Pls identify part.

Please help me identify what part is in the ff: photos.

I haven't driven the ML550 for 2 weeks. I started her up this morning and I smelled burnt oil which I initially ignored. After pulling out of the garage, I found a small amount of oil on the floor.

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Old 12-12-2010, 07:21 PM   #2
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Cam plugs at the rear of the heads
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Old 12-12-2010, 07:59 PM   #3
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Socketman, what causes that to go bad and cause a leak? I'm not mechanically inclined. Im trying to learn as much before I bring it to stealership.

Is that a cross member? or a does that hold oil inside?
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Old 12-12-2010, 09:32 PM   #4
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looks like i am having this same problem on my ML550.

where do i look and what do i need to check to confirm that it is the cam plugs?
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Old 12-12-2010, 09:59 PM   #5
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Quote:
Originally Posted by 360 View Post
looks like i am having this same problem on my ML550.

where do i look and what do i need to check to confirm that it is the cam plugs?
Found this on another site:

Quote:
Originally Posted by dynhm6 View Post
Click the image to open in full size.

I believe this is the part they're replacing under the "recall" (the top part within the red box) - the camshaft case cap (part 01504). According to the service adviser at the dealership, if/when the cam cap leaks, oil can drain into the MAF, fouling it.
The part just below it is the cylinder head cap seal (part 01505), but I'm not sure it's part of the recall. I'll try to get more details when I pick the car up later today.
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Old 12-12-2010, 10:04 PM   #6
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360, do you have the same leak as I have in the photos?
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Old 12-12-2010, 10:28 PM   #7
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yes exact same leak. leaking onto the crossmember on the driver side.

and my warrenty is up
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Last edited by 360; 12-12-2010 at 10:34 PM.
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Old 12-13-2010, 07:57 PM   #8
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He is right 2 ways to see it look up at the back of the head from under vehicle or remove engine cover and use a mirror to look at the rear of the head to see.
You can replace them yourself, the seals just start to leak. you can pop them out with a screwdriver.
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Old 12-13-2010, 08:12 PM   #9
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Quote:
Originally Posted by socketman View Post
He is right 2 ways to see it look up at the back of the head from under vehicle or remove engine cover and use a mirror to look at the rear of the head to see.
You can replace them yourself, the seals just start to leak. you can pop them out with a screwdriver.

I am somewhat disappointed with my ML because of this and am contemplating selling it or trading it in. I have owned other vehicles, bothe American and European, from the cheap ones to some of the expensive ones and never have I experienced something like this.

I may be overreacting to this issue but I don't expect this from MB. I've also read somewhere that this issue has been occurring a lot on the GL line.
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Old 12-14-2010, 11:53 PM   #10
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mine just stopped leaking. there is more than enough oil in the engine but for the past 2 days no more dripping
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Old 12-15-2010, 12:35 PM   #11
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Quote:
Originally Posted by speed8 View Post
I've also read somewhere that this issue has been occurring a lot on the GL line.
This same engine is used in ALL Mercedes, and the V6 and the V8 are basically the same.
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Old 10-28-2012, 03:05 AM   #12
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I am having he same issue with my 2007 s550,I went to the dealer and noticed all 4 plastic caps are $100 and labor $345, how hard is it to replace them myself, they kinda look like pop in plugs only
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Old 10-28-2012, 03:05 AM
 
 
 
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Tags
01504, 320cdi, bluetech, cam, camshaft, cap, case, e320, gl, leak, mercedes, ml350, oil, part, plug



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