S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600
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W221 Differential oil change

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Old 03-25-2017, 09:07 PM
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2008 S550
Smile W221 Differential oil change

Anyone have any experience changing the differential oil on W221?
I took a quick look and see the drain plug on the drivers side and what seems to be the fill plug on the passenger side. I have a slight whine over 60 mph when there is no load. Thought I would change the oil in the differential. I have found nothing on this subject anywhere besides on the W220. Anyone?

Old 03-26-2017, 04:47 AM
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2006 S600
Obviously, remove the fill plug before you remove the drain plug.

Nick
Old 03-26-2017, 11:05 AM
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Differential: http://workshop-manuals.com/mercedes...ary/page_4279/ + next pages
Fluid: http://workshop-manuals.com/mercedes...ons/page_4275/ MB recommends 85w-90 your call.
Capacity: http://workshop-manuals.com/mercedes...pecifications/
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Old 03-27-2017, 07:50 AM
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Originally Posted by konigstiger
Just what I was looking for.


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