differential what oil to use??
MBWorld Fanatic!
Joined: Feb 2006
Posts: 1,489
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From: WNY
2005 w203 C230
Your Operator’s Manual / Approved Fluids and Products Booklet will let you know...
For my 1980 w123 E230
A 000 989 2803
MB Sheet Spec 235.11
For my 2005 w203 C230
A 001 989 2803 10
MB Sheet Spec 235.0
For my 1980 w123 E230
A 000 989 2803
MB Sheet Spec 235.11
For my 2005 w203 C230
A 001 989 2803 10
MB Sheet Spec 235.0
Last edited by BF_JC230; May 7, 2010 at 01:50 PM.
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From: Sugar Land, TX
2007 C230
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c240
Mobil1 75W-90
I have not found any 85W-90 gear oil except at autohausAZ or RMeuropean, but for about $28/Qt.
I found Mobil1 Synthetic 75W-90 for about $9/Qt. It's described as limited-slip, with phosorus additives. Would this be OK to use in the rear differential, although MB specifies 85W-90?
I have 88k on the odometer, and think i should drain/refill asap. Thanks.
I found Mobil1 Synthetic 75W-90 for about $9/Qt. It's described as limited-slip, with phosorus additives. Would this be OK to use in the rear differential, although MB specifies 85W-90?
I have 88k on the odometer, and think i should drain/refill asap. Thanks.
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Joined: Aug 2010
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From: North San diego
C320 2002
I have not found any 85W-90 gear oil except at autohausAZ or RMeuropean, but for about $28/Qt.
I found Mobil1 Synthetic 75W-90 for about $9/Qt. It's described as limited-slip, with phosorus additives. Would this be OK to use in the rear differential, although MB specifies 85W-90?
I have 88k on the odometer, and think i should drain/refill asap. Thanks.
I found Mobil1 Synthetic 75W-90 for about $9/Qt. It's described as limited-slip, with phosorus additives. Would this be OK to use in the rear differential, although MB specifies 85W-90?
I have 88k on the odometer, and think i should drain/refill asap. Thanks.
Junior Member
Joined: Feb 2011
Posts: 68
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c240
Drive in figure 8 after differentail oil change
I just drained/replaced the rear differentail oil with 88k on the clock. The old oil was so thick vs the Synthetic M1 75-90 I put back. May be becuase the car was not driven before draining the system?
Also, how do you make sure the vent hose on top of the diff. is working properly? does it need to be cleaned?
finally I read somewhere that you should drive in figure 8 few times after changing the diff oil. Has anyone heard about this?
Also, how do you make sure the vent hose on top of the diff. is working properly? does it need to be cleaned?
finally I read somewhere that you should drive in figure 8 few times after changing the diff oil. Has anyone heard about this?
MBWorld Fanatic!
Joined: Feb 2009
Posts: 5,054
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From: fort worth, tx
06 C230 SS 6spd
I just drained/replaced the rear differentail oil with 88k on the clock. The old oil was so thick vs the Synthetic M1 75-90 I put back. May be becuase the car was not driven before draining the system?
Also, how do you make sure the vent hose on top of the diff. is working properly? does it need to be cleaned?
finally I read somewhere that you should drive in figure 8 few times after changing the diff oil. Has anyone heard about this?
Also, how do you make sure the vent hose on top of the diff. is working properly? does it need to be cleaned?
finally I read somewhere that you should drive in figure 8 few times after changing the diff oil. Has anyone heard about this?
Maybe Karo will post a pdf of the diff oil change steps.
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Posts: 4,152
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From: NJ, NYC
Something Slow
guys in the C32 Sections use Mobil1 Synthetic 75W-90 ! i am getting this aswell :-)
I have not found any 85W-90 gear oil except at autohausAZ or RMeuropean, but for about $28/Qt.
I found Mobil1 Synthetic 75W-90 for about $9/Qt. It's described as limited-slip, with phosorus additives. Would this be OK to use in the rear differential, although MB specifies 85W-90?
I have 88k on the odometer, and think i should drain/refill asap. Thanks.
I found Mobil1 Synthetic 75W-90 for about $9/Qt. It's described as limited-slip, with phosorus additives. Would this be OK to use in the rear differential, although MB specifies 85W-90?
I have 88k on the odometer, and think i should drain/refill asap. Thanks.
MBWorld Fanatic!
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From: fort worth, tx
06 C230 SS 6spd
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2021 Yukon XL Denali, 2017 GLS450 4MATIC, 1993 Chevy Corvette
Hypoid gear oil 85w-90 OEM recommended (see your manual). I know its 1.5 Liters for the C55 differential, but pretty sure its a little less for all other w203 c-class models. I bought mine at Autohausaz. Painful at $28 a quart but well worth not screwing up your differential IMO.
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From: San Mateo, Ca
C230 Coupe Silver
hey i was just about to do this this weekend and i'm all down for that redline but should i get the 70w80 redline or the 75w90??? i used the 70 80 for my manual transmission but i don't know if i should get gear oil for my diff?? i'm thinking maybe i should use the same?
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From: San Mateo, Ca
C230 Coupe Silver
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From: Camas, WA
2007 C230SS; 2014 ML350 BT
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Nevertheless - It does not need frequent changing & you are correct to go with the approved product. I will not recommend otherwise & have someone tell me that their diff has lost pinion bearing preload & developed a whine. Benz uses low friction bearings & they are easily damaged.
