Rear differential fluid change
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Joined: Nov 2022
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07 Cls550
Rear differential fluid change
What the process for changing the differential fluid? Simply drain, then fill till it starts flowing out the fill hole? Will I need a vacuum pump to refill?
What diff fluid is everyone using? Redline worked well on my japanese cars but assuming not so much with Mercedes.
What diff fluid is everyone using? Redline worked well on my japanese cars but assuming not so much with Mercedes.
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From: US
2008 E350, 2012 ML350, 2014 E350, 2015 ML350
The Pelican Parts website has good step-by-step instructions for maintenance on the W211
https://www.pelicanparts.com/techart...uid_Change.htm
Another detailed set of instructions (no photos though)
https://forums.mercedesclub.org.uk/i...-change.98378/
and, of course, the commercial video
https://www.pelicanparts.com/techart...uid_Change.htm
Another detailed set of instructions (no photos though)
https://forums.mercedesclub.org.uk/i...-change.98378/
and, of course, the commercial video
Last edited by JCM_MB; Aug 1, 2023 at 07:29 AM.
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Joined: Sep 2019
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From: SD
2000 C230 - 2001 E430 - 2003 E320 -
Procedure: Drain and fill until it comes out. Use any cheepo hand pump or any other way to push the fluid in. You have some room to work with. The drain/fill nuts official torque is 50NM which is really high, I never torque them that high since I use some permatex on the threads - I use 30NM. No leaks so far.
Fluid - spend your $ on whatever makes you happy or marketing your believe in. Official spec is 235.7 - https://operatingfluids.mercedes-benz.com/sheet/235.7
Change interval - everyone will give different answers. General guidelines that will not start a flame war. If you live in a place with high humidity or wide temperature ranges especially sub-zero F - change it more often to remove water condensation.
Fluid - spend your $ on whatever makes you happy or marketing your believe in. Official spec is 235.7 - https://operatingfluids.mercedes-benz.com/sheet/235.7
Change interval - everyone will give different answers. General guidelines that will not start a flame war. If you live in a place with high humidity or wide temperature ranges especially sub-zero F - change it more often to remove water condensation.
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Joined: Jul 2013
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From: Cedar Rapids, IA
2009 e550 4Matic
Right here. This is the most overlooked thing ever. You DO NOT want to empty the diff and not be able to get the fill plug out to refill it with oil.
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11 E550, 16 AMG GTS, 13 S550
comes in a super easy to use squeeze pack that holds pressure at the nozzle
https://www.amsoil.com/p/severe-gear...EA/&zo=7236674
https://www.amsoil.com/p/severe-gear...EA/&zo=7236674
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Purchase Amsoil at 25% off from me
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From: The Netherlands
2005 CLS55 AMG W219 C219
On my CLS55, I swapped them out straight away when I did this service.
You can probably use this as a guide as well:
Last edited by nd-photo.nl; Aug 18, 2023 at 07:55 AM.
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Joined: Sep 2019
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CLS400
Exactly, also consider buying new plugs. On my Mini Cooper, I almost stripped out the plug
On my CLS55, I swapped them out straight away when I did this service.
You can probably use this as a guide as well:
https://www.youtube.com/watch?v=2IP9E8iVcLE
On my CLS55, I swapped them out straight away when I did this service.
You can probably use this as a guide as well:
https://www.youtube.com/watch?v=2IP9E8iVcLE
Can you please confirm if I have the correct part number for the plug screws "A0009977932" (assuming it's the same for fill/plug)?
My car is a 2015 CLS400 (Base, Non 4Matic).
Thank you
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