E-Class (W212) 2010 - 2016: E 350, E 550
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Does the rear diff oil need to be changed?

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Old Oct 29, 2024 | 09:34 AM
  #26  
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Originally Posted by pierrejoliat
Yes, weird though, both times the front was dirtier than the back, I have no clue why
Which is very strange that lists rear diff intervals in WIS but never mention it needs to be done in the front.
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Old Oct 29, 2024 | 09:50 AM
  #27  
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Originally Posted by Quint22
And .6 liter oil fill....
I think the small comparative volume has much to do with the longevity of the lube. That's one reason I purchased a RWD Sport model.
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Old Oct 29, 2024 | 01:38 PM
  #28  
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Originally Posted by w204benz
Is your car a 4 matic?
Mine is not a 4-matic.
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Old Oct 29, 2024 | 03:15 PM
  #29  
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Is the front diff fluid shared with anything else? As @W205C43PFL stated, there is no mention of the front differential in the WIS (unless it' "hidden" as happens many times).
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Old Oct 29, 2024 | 03:50 PM
  #30  
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24 GLS580 '23 E450 4matic 12 E350 4Matic
Originally Posted by CaliBenzDriver
Pierre, the front has a much-much harder life than the rear....
Front axle chews up bearings routinely, the rear never does.

I believe this is caused by the wheel RPM differences.
That's true, does all the steering,most of the braking and half the driving. It also holds less lubricant.
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Old Oct 30, 2024 | 09:25 AM
  #31  
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Originally Posted by JettaRed
Is the front diff fluid shared with anything else? As @W205C43PFL stated, there is no mention of the front differential in the WIS (unless it' "hidden" as happens many times).
No it is independent, the transfer case as such is part of the transmission though.
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Old Oct 30, 2024 | 09:43 AM
  #32  
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Originally Posted by JettaRed
Is the front diff fluid shared with anything else? As @W205C43PFL stated, there is no mention of the front differential in the WIS (unless it' "hidden" as happens many times).
Originally Posted by pierrejoliat
No it is independent, the transfer case as such is part of the transmission though.
Is it true that all MB transmissions shares the fluid with transfer case?
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Old Oct 30, 2024 | 01:25 PM
  #33  
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24 GLS580 '23 E450 4matic 12 E350 4Matic
Originally Posted by W205C43PFL
Is it true that all MB transmissions shares the fluid with transfer case?
I did not say they all did, i was referring to the W212. In fact, my G wagon and my Unimog did not share with the transmission, they were separate and used gear oil

But these do:
CL500,CL550,SLK55, CLK500,E500, S430,S500,CLK55,CLS500,S550,E550, E63,S63,CLS63,CLK63

Last edited by pierrejoliat; Oct 30, 2024 at 01:28 PM.
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Old Oct 30, 2024 | 02:04 PM
  #34  
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Originally Posted by W205C43PFL
Is it true that all MB transmissions shares the fluid with transfer case?
For some it is true, they share the fluid and connected, like in our 212s but on my GL class and ML class they are separate, they don`t share the same fluid with tranny.
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Old Oct 30, 2024 | 02:20 PM
  #35  
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So, those that share the tranny fluid I would want to change more frequently. And probably why the color is darker. Hope no one refills with GL5 gear oil.
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Old Oct 30, 2024 | 08:25 PM
  #36  
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Originally Posted by pierrejoliat
I did not say they all did, i was referring to the W212. In fact, my G wagon and my Unimog did not share with the transmission, they were separate and used gear oil

But these do:
CL500,CL550,SLK55, CLK500,E500, S430,S500,CLK55,CLS500,S550,E550, E63,S63,CLS63,CLK63
Sorry for the confusion I didn't mean you said it did, I was curious if all did and if not which models, thanks for answering, your answer and the other forum members both helped answer my curiosity.

Last edited by W205C43PFL; Oct 30, 2024 at 08:26 PM.
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Old Oct 30, 2024 | 08:26 PM
  #37  
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Originally Posted by 01blackhawk
For some it is true, they share the fluid and connected, like in our 212s but on my GL class and ML class they are separate, they don`t share the same fluid with tranny.
Originally Posted by JettaRed
So, those that share the tranny fluid I would want to change more frequently. And probably why the color is darker. Hope no one refills with GL5 gear oil.
Appreciate the answers and yup sounds like we should indeed change it more often.
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Old Oct 31, 2024 | 12:22 PM
  #38  
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Originally Posted by W205C43PFL
Sorry for the confusion I didn't mean you said it did, I was curious if all did and if not which models, thanks for answering, your answer and the other forum members both helped answer my curiosity.
All good!
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