Engine Oil Cooler Leaking
06-26-2019, 03:52 PM
#1
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Thread Starter
Engine Oil Cooler Leaking
Hi I have a 2012 S350 with a very small Engine Oil Cooler Leak. Just enough to bother you, or just enough to leave a small stain in someone's driveway... Has anyone had this issue? More importantly,, does anyone know of Recalls or Manufactures Defects on this issue. I am told that this is a common problem with all W221 's... Any help would be greatly appreciated. Thanks
Jeff
Jeff
06-28-2019, 11:18 PM
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2011 GL 550, 2010 MB S550, 2004 BMW 645Cic 1988 Corvette
Hi I have a 2012 S350 with a very small Engine Oil Cooler Leak. Just enough to bother you, or just enough to leave a small stain in someone's driveway... Has anyone had this issue? More importantly,, does anyone know of Recalls or Manufactures Defects on this issue. I am told that this is a common problem with all W221 's... Any help would be greatly appreciated. Thanks
Jeff
Jeff
07-02-2019, 04:14 PM
#6
Member
Thread Starter
Hi,
You are correct that it is a gasket issue; however, I am being told that you essentially have to take the top half of the engine apart to get at the engine oil cooler/gasket. Very expensive... So I trying to find out if anyone else had this issue, and how did they resolve it. Any help is greatly appreciated. Thank you.
Jeff
You are correct that it is a gasket issue; however, I am being told that you essentially have to take the top half of the engine apart to get at the engine oil cooler/gasket. Very expensive... So I trying to find out if anyone else had this issue, and how did they resolve it. Any help is greatly appreciated. Thank you.
Jeff
07-19-2019, 11:52 AM
#7
Member
Thread Starter
There are no S350 or any other diesel owners that have experienced this issue? Any help or thoughts would be appreciated...
Jeff
Jeff
Trending Topics
07-21-2019, 02:46 PM
#9
Senior Member
All OM642 engines are affected with this issue. Parts are cheap but labor is expensive. I have same car - 2012 S350 and also I have small leak (couple drops overnight) which I currently ignore, but at some point I want to fix it.
07-23-2019, 10:11 AM
#10
Member
Thread Starter
Hi
I am being told to fix the oil leak, they essentially have to take the top half of the engine off to get at the gasket. That alone will be about $1,500-2000. Then you get yourself in the situation where if you already have the engine apart, what else should you replace... That could lead into several $$$ more. I was hoping to find someone who has already done this on the cheap, and gain any insights possible.
Jeff
I am being told to fix the oil leak, they essentially have to take the top half of the engine off to get at the gasket. That alone will be about $1,500-2000. Then you get yourself in the situation where if you already have the engine apart, what else should you replace... That could lead into several $$$ more. I was hoping to find someone who has already done this on the cheap, and gain any insights possible.
Jeff
07-25-2019, 06:49 PM
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'71 Pinto
Oil cooler is part 6421800165, gaskets 6421880480. See attachments.
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GPF (09-16-2019)
01-11-2020, 05:26 PM
#13
S350 oil cooler leak
Hi,
I have the same issue, my mechanic says it is a very common issue with this engine which is also used in the Sprinter van. $2200 repair for a $6 seal that Mercedes refuses to admit was faulty. As mentioned above the oil cooler is under the manifold which makes it a significant job. I believe there is an upgraded seal from Mercedes, but there was no problem with the factory seal (eye roll here).
I get a couple of drops a week, but I am going to get it fixed when the weather warms up...
I have the same issue, my mechanic says it is a very common issue with this engine which is also used in the Sprinter van. $2200 repair for a $6 seal that Mercedes refuses to admit was faulty. As mentioned above the oil cooler is under the manifold which makes it a significant job. I believe there is an upgraded seal from Mercedes, but there was no problem with the factory seal (eye roll here).
I get a couple of drops a week, but I am going to get it fixed when the weather warms up...
