Oil leak on facelift C63 on engine block
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c63 amg PP (w204)
It is a used 6 year old car, so I was expecting that I'll need to invest some money into bringing it to ideal shape.
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c63 amg PP (w204)
I really hope I don't have the same problem as the one described in the following thread:
https://mbworld.org/forums/c63-amg-w204/439178-2010-c63-p31-porous-aluminum-head-leak-bottom-plate-bad-head-bolts.html
https://mbworld.org/forums/c63-amg-w204/439178-2010-c63-p31-porous-aluminum-head-leak-bottom-plate-bad-head-bolts.html
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c63 amg PP (w204)
The photo at the end of the first page of the thread where a guy is pointing at the place of the leak with a pen is really close to the place where the engine mount bracket is.
It could also explain why motor oil leaked out when my mechanic screwed out the engine mount bracket bolt. Oil could have accumulated in the cavity behind the bracket.
If that is all true it's really a shame, I don't really want to have my engine disassembled 2 months after buying the car.
On the other hand, I haven't noticed my car losing any oil. Maybe some oil stop leak additive can remedy the situation?
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c63 amg PP (w204)
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2010 C63 AMG
Tons of options. Maybe something like this will work.
https://www.permatex.com/products/ad...t-leak-repair/
https://www.permatex.com/products/ad...t-leak-repair/
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c63 amg PP (w204)
Tons of options. Maybe something like this will work.
https://www.permatex.com/products/ad...t-leak-repair/
https://www.permatex.com/products/ad...t-leak-repair/
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c63 amg PP (w204)
Anyways guys, oil was leaking from one of the engine mount bracket bolt holes in the lower oil pan.
It seems that it's a production flaw as these holes aren't supposed to be through. We just like some sealant in it and it's not leaking anymore
It seems that it's a production flaw as these holes aren't supposed to be through. We just like some sealant in it and it's not leaking anymore
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c63 amg PP (w204)
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2010 C63 AMG
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c63 amg PP (w204)
It doesn't seem that my mounts were ever replaced and all the bolts were of equal length.
Last edited by bullitt69; Jun 16, 2017 at 04:48 AM.
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From: Kitchener, ON
2010 C63 AMG
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2009 SLK55 AMG. & 2022 GLA250 4Matic
Old farts sometimes can recall old ways.
Put a UV oil based dye in the oil in very small quantity and it will flouresce under UV light. If it does it ain't the mounts and it will help locate exactly where it is leaking from.
http://www.autozone.com/test-scan-an..._0_0?location=
Put a UV oil based dye in the oil in very small quantity and it will flouresce under UV light. If it does it ain't the mounts and it will help locate exactly where it is leaking from.
http://www.autozone.com/test-scan-an..._0_0?location=
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c63 amg PP (w204)
Thread Starter
Member
Joined: Mar 2017
Posts: 149
Likes: 10
c63 amg PP (w204)
Old farts sometimes can recall old ways.
Put a UV oil based dye in the oil in very small quantity and it will flouresce under UV light. If it does it ain't the mounts and it will help locate exactly where it is leaking from.
http://www.autozone.com/test-scan-an..._0_0?location=
Put a UV oil based dye in the oil in very small quantity and it will flouresce under UV light. If it does it ain't the mounts and it will help locate exactly where it is leaking from.
http://www.autozone.com/test-scan-an..._0_0?location=
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Mercedes C43 AMG Estate
I'm thinking of buying a C63 so spoke to an engineer at Mercedes Benz World who experienced the exact oil leak you have. He said its because the engine mount bolt on some cars goes too far in and actually punctures the block. The only cure is a new engine.
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2010 C63 AMG
If anyone is tossing an engine because of this I will take it.
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w205 c63
That is complete horse ****. If any of these engines had longer bolts puncturing the block then it would have leaked as soon it ran for the first time. All the bolts are the same length on all the m156 built you can believe that. I recently had the same leak. Pulled out the same bolt OP did and oiled poured out. Only explanation is oil is leaking from somewhere higher or maybe it’s left over oil from a previous leak that collected in that area.
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c63 amg PP (w204)
That is complete horse ****. If any of these engines had longer bolts puncturing the block then it would have leaked as soon it ran for the first time. All the bolts are the same length on all the m156 built you can believe that. I recently had the same leak. Pulled out the same bolt OP did and oiled poured out. Only explanation is oil is leaking from somewhere higher or maybe it’s left over oil from a previous leak that collected in that area.
Solution is to reseal it. Here is the video of the procedure:
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c63 amg PP (w204)
I spoke with Tasos over IG a year ago and he sent me videos explaining the problem in detail.
IG of Tasos:
https://www.instagram.com/tasos_moschatos/
IG of Tasos:
https://www.instagram.com/tasos_moschatos/
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w205 c63
The reason for the leak is long known now for the m156 - blown gasket between the upper and lower pans.
Solution is to reseal it. Here is the video of the procedure: https://www.instagram.com/reel/CPvbjQjJvN4/
Solution is to reseal it. Here is the video of the procedure: https://www.instagram.com/reel/CPvbjQjJvN4/
That is not the source of the leak. The engine mount bracket is above the oil pan. It’s the bed plate. Need to remove the engine and it’s basically almost a rebuild at that point in order to re seal.
