Gray Grease
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Member
Joined: Jan 2013
Posts: 180
Likes: 1
From: Fort Lauderdale, FL
2010 C300 4Matic, 2011 GL450, 2005 ML500, 2010 GL350 and 2003 SLK230
Gray Grease
I see some grayish grease all over front diff and axles does anyone know what that is? Have never seen anything like that before.
Thread Starter
Member
Joined: Jan 2013
Posts: 180
Likes: 1
From: Fort Lauderdale, FL
2010 C300 4Matic, 2011 GL450, 2005 ML500, 2010 GL350 and 2003 SLK230
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Joined: May 2015
Posts: 4,037
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From: Miami, FL
2003 CL 600
It's easier on the GL than on a C-class. Labor time is about half. The part that contains the grease is not the mount but the actual metal arm that attaches from the mount to the engine block. It's filled with silicone for noise/vibration reductions, but it won't actually hurt anything when it leaks out, at some point they stopped putting the filler in there, I've seen some without it, some only filled on one side, etc. It's a bluetec only thing I believe.
Thread Starter
Member
Joined: Jan 2013
Posts: 180
Likes: 1
From: Fort Lauderdale, FL
2010 C300 4Matic, 2011 GL450, 2005 ML500, 2010 GL350 and 2003 SLK230
It's easier on the GL than on a C-class. Labor time is about half. The part that contains the grease is not the mount but the actual metal arm that attaches from the mount to the engine block. It's filled with silicone for noise/vibration reductions, but it won't actually hurt anything when it leaks out, at some point they stopped putting the filler in there, I've seen some without it, some only filled on one side, etc. It's a bluetec only thing I believe.
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Joined: Mar 2016
Posts: 87
Likes: 6
2010 GL350
It's easier on the GL than on a C-class. Labor time is about half. The part that contains the grease is not the mount but the actual metal arm that attaches from the mount to the engine block. It's filled with silicone for noise/vibration reductions, but it won't actually hurt anything when it leaks out, at some point they stopped putting the filler in there, I've seen some without it, some only filled on one side, etc. It's a bluetec only thing I believe.
I assume the fluid in the motor mounts is meant to dampen vibration. Other more knowledgeable in the forum can opine on the wisdom of doing nothing. I chose to replace both mounts. Not sure the exact cost because I did the oil cooler at the same time. But $2000 +/- would be a ballpark for a dealer service just for the mounts.
And after replacement... I removed the plastic belly pan so more airflow gets to the engine compartment. Wish I'd done that 6 years ago.
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Joined: Oct 2018
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2005 E320, 2008 E320 Bluetec
Sorry to bump this old thread, but does anyone know the part number for that gray grease, and how much to use? Or is it really not necessary? How much vibration does it add to run without it?
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