Rear Differential Oil with LSD
Thread Starter
Senior Member
Joined: Jul 2022
Posts: 464
Likes: 99
2014 E63 / 2017 CLS 63 / 2015 G63
Rear Differential Oil with LSD
Part number shows
Old Part # 001989330312
New Part # 001989330309
MB genuine Hypoid Gear Oil
75W-85
however many have mentioned of
75W-140
could someone please explain? what is going on here?
Old Part # 001989330312
New Part # 001989330309
MB genuine Hypoid Gear Oil
75W-85
however many have mentioned of
75W-140
could someone please explain? what is going on here?
Last edited by E63SAMG2014; Jul 28, 2025 at 10:15 PM.
Thread Starter
Senior Member
Joined: Jul 2022
Posts: 464
Likes: 99
2014 E63 / 2017 CLS 63 / 2015 G63
Junior Member
Joined: Sep 2003
Posts: 40
Likes: 11
From: W Hollywood, CA
'06 SLK55, '14 E63S Estate
E63S LSD- 75W-140
I am certain the correct oil for the rear diff
of a W212 E63S is 75w-140 MB P/N: 001989520310
The dealership will sell you Castrol Syntrax 75W-140, and is one of very few approved fluids for that rear diff. 75W-85 is incorrect (although that's the correct weight in the front diff)
could someone please explain? what is going on here?[/QUOTE]
of a W212 E63S is 75w-140 MB P/N: 001989520310
The dealership will sell you Castrol Syntrax 75W-140, and is one of very few approved fluids for that rear diff. 75W-85 is incorrect (although that's the correct weight in the front diff)
could someone please explain? what is going on here?[/QUOTE]
Junior Member
Joined: Feb 2007
Posts: 43
Likes: 11
concur
Would like to add data point
Have recently had rear diff oil of our e63s changed at dealer in Toronto.
Fluid listed on invoice is mb part no. 001 989 52 03 10.
I allso looked up on MB's fluids spec website:
https://operatingfluids.mercedes-benz.com/sheet/231.1
which lists 235.61 -75w-140 for AMG rear differential.
[/QUOTE]
Have recently had rear diff oil of our e63s changed at dealer in Toronto.
Fluid listed on invoice is mb part no. 001 989 52 03 10.
I allso looked up on MB's fluids spec website:
https://operatingfluids.mercedes-benz.com/sheet/231.1
which lists 235.61 -75w-140 for AMG rear differential.
I am certain the correct oil for the rear diff
of a W212 E63S is 75w-140 MB P/N: 001989520310
The dealership will sell you Castrol Syntrax 75W-140, and is one of very few approved fluids for that rear diff. 75W-85 is incorrect (although that's the correct weight in the front diff)
could someone please explain? what is going on here?
of a W212 E63S is 75w-140 MB P/N: 001989520310
The dealership will sell you Castrol Syntrax 75W-140, and is one of very few approved fluids for that rear diff. 75W-85 is incorrect (although that's the correct weight in the front diff)
could someone please explain? what is going on here?
Last edited by 2dino; Aug 27, 2025 at 11:06 PM. Reason: typo correction
