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Differential fluid.

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Old Apr 2, 2020 | 09:30 AM
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sxs191
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2014 CLS550 4matic AND 2010 C300 4matic
Differential fluid.
I am about to hit the 90k mark and am looking to do the front and rear differential, am I to use any hypoid oil 75w-85? I’ve also read to use 85w-90 or 75w-90 so not sure which. I can’t find anything in the manual. Is there a fill plug for the front? Also looking to do the serpentine belt, which does not look fun.
thanks, Scott
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Old May 9, 2020 | 01:11 AM
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GT532
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2014 CLS 550
Hey sxs191, I have a slight leak at my front diff pinion seal and want to check the level, did you by chance find out how to check the oil level for the front diff? TIA
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Old May 9, 2020 | 05:51 AM
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Romann001
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CLS 500 w218
I did mine rear and front differential two weeks ago...rear was easy, but front is hard to do..my mechanic said, that fill plug is on the top and he could not reach the fill plug so he unscrewed the bottom one, and he fills the new fluid by special pump through same hole...I used this oil: https://www.sparespro.com.au/fuchs-t...-sae-75w-85-1l
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Old May 9, 2020 | 08:56 PM
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GT532
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2014 CLS 550
Thanks Romann001!

Do you recall how much oil you drained from the front diff/how much you put back into the front diff?

TIA
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Old May 10, 2020 | 02:44 AM
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konigstiger
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'71 Pinto
212 same method for 218: https://mbworld.org/forums/s-class-w...ml#post6397209


Attached Files
File Type: pdf
install front axle gear.pdf (259.3 KB, 734 views)
File Type: pdf
BB00.40-P-0235-07A.pdf (184.7 KB, 1256 views)
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Old May 10, 2020 | 02:48 AM
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Romann001
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CLS 500 w218
0,6 liters front, 1,1 liters rear
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Old May 10, 2020 | 05:26 AM
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GT532
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2014 CLS 550
Thanks konigster!
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Old May 10, 2020 | 05:28 AM
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GT532
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2014 CLS 550
Thanks Romann001!
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