how to check the differantial fluid?
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Joined: Mar 2004
Posts: 1,175
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From: Boston, MA
'14 ML350, '13 C220 CDI, '07 C280, '98 ML320
Typical differential has a drain plug (to remove the fluid) and a fill plug (to fill the new fluid). After removing the old fluid via drain plug and putting back the drain plug, you'd pour the new fluid via fill hole until the fluid starts coming out. The fill hole is at the max level of the diff fluid. So, you won't be able to over-fill of you try to.
Please note that some differentials (like the front diff on my front '07 C280 4Matic) have just one plug - for removing the fluid and adding new fluid.
Please note that some differentials (like the front diff on my front '07 C280 4Matic) have just one plug - for removing the fluid and adding new fluid.
Super Moderator
Joined: Jun 2008
Posts: 19,942
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
https://mbworld.org/forums/c-class-w...fill-plug.html
30 is level plug
Axle fluids should meet Benz approval 235.7 Part number A001 989 33 03 10 or approval spec 235.9 - Available at your Benz dealer.
30 is level plug
Axle fluids should meet Benz approval 235.7 Part number A001 989 33 03 10 or approval spec 235.9 - Available at your Benz dealer.
Super Moderator
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Here's the tranfer case - more complicated. Diffs are dead easy
I hope you are a genius
You have some work to do.
I hope you are a genius
You have some work to do.
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Joined: Aug 2007
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From: Phoenix AZ & Cayucos CA
’27 AMG SL55(ordered), ‘23 EQS 580 SUV, ‘19 AMG E53 Cpe, ‘48 Willys Jeepster
https://mbworld.org/forums/c-class-w...fill-plug.html
30 is level plug
Axle fluids should meet Benz approval 235.7 Part number A001 989 33 03 10 or approval spec 235.9 - Available at your Benz dealer.
30 is level plug
Axle fluids should meet Benz approval 235.7 Part number A001 989 33 03 10 or approval spec 235.9 - Available at your Benz dealer.
Super Moderator
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
The 235.8 spec is for 75W-90 so that's correct viscosity. I thought the Mobil was approved - will take a look & report back
Please note I meant 235.8 above & not 235.9
Please note I meant 235.8 above & not 235.9
Last edited by Glyn M Ruck; Aug 31, 2010 at 08:56 PM.
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Super Moderator
Joined: Jun 2008
Posts: 19,942
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Steadily changed over time to one size fits all for all temperature conditions & as high VI synthetics have become available. i.e. behaves like a 75W when cold & like a 90 when hot.
Synthetics thin out less with increased temperatures over normal petroleum fluids.
Synthetics thin out less with increased temperatures over normal petroleum fluids.
Senior Member
Joined: Jan 2010
Posts: 456
Likes: 4
From: Canada
2003 c240 4matic wagon
you might not be able to find any mb spec fluid I was unable to get any in canada (had to import a case from usa) way to much $$$ to do that
so I used valvoline same as the 2 local dealer use here.....
so I used valvoline same as the 2 local dealer use here.....
