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Old 08-12-2018, 11:00 PM   #31
Midwestdrifter
 
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Default Re: Rear Differential gear oil change

MB usually uses 14mm, VW has used 17mm from my previous experience. I would measure, but you can use a couple of nuts stacked on bolt, combined with a regular wrench. Easier than buying a new hex key.
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Old 08-18-2018, 01:21 PM   #32
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Default Re: Rear Differential gear oil change

Turned out it was 17mm in the end, refreshed the differential oil, but the whining sound I get when I reach 100kmh is still preset, but only there whilst accelerating.

From what research I've done, it is possible the propshafter centre bearing? The whining sound I hear when I hit 100kmh whilst accelerating sounds like its coming from the rear of the van.
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Old 08-18-2018, 02:04 PM   #33
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Default Re: Rear Differential gear oil change

Bit of an update, I've put the van in neutral, and handbrake on, and then got under the van to check the UJ's, and bearings, and these are all solid, and actually look new, so now, I suspect the whining sound is a wheel bearing, as I'm also getting some brake squealing from one side at the rear, does this sound plausible'?
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Old 11-26-2018, 09:37 PM   #34
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Default Re: Rear Differential gear oil change

Quote:
Originally Posted by sailquik View Post
Curious Sprinter Tech,
Are you sure about this?
Here's a photo of the MOPAR Rear Differential Fluid most recommended for '02-'06 T1N Sprinters:
http://www.ebay.com/itm/SPRINTER-AXL...-/330355238354
You can see that it says "Sprinter" right on the label!

For the later NCV3 Sprinters (906 series NAFTA) the MB BEVO 231.2 Page 2 says
for 906 (NAFTA Sprinters to use MB BEVO 235.8!

Here's a link:
http://bevo.mercedes-benz.com/bevolisten/235.8_en.html
No where in all of this MB official information can I find any reference to
"75W-140 synthetic Gear oil".
All of the above indicates 75W-90 synthetic hypoid oil or 90W hypoind gear oil.
The MOPAR product may not be synthetic as it carries no MB approval number, but
it was recommended lube for Dodge T1N Sprinters ('02-'06) and used by most knowledgeable
Dodge Sprinter dealers.
The later NCV3 Sprinters (906) all need "synthetic 75W-90.
Hope this helps,
Roger
Roger - Can you confirm that 2007s call for a differential fluid change as well. Im going over maintenance tasks and did not think to change the dif fluid in our 2007. If I recall the 2007s are missing some options in the later models - but i am assuming I should still be replacing the dif fluid every so often. (Im sure what I am thinking is missing in the 2007 relates to emissions and not drive train) - If so Im looking up how to and changing the dif fluid asap.

Thank you as always.
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Old 11-28-2018, 04:11 AM   #35
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Default Re: Rear Differential gear oil change

The Heaven Van;
Do you have the original Owner's/Operator's Manual that came with your Sprinter?
If you do, the full maintenance schedule is most likely listed.
These manuals may still be available online at the Dodge or Freightliner Owners manual sites.
The books are identical, the Dodge manual says Dodge throughout and the Freightliner is identical except it
says Freightliner throughout.
Looks like you can download the 2007 Owner's Manual for free at this site:
https://manuals.co/workshop/mercedes...rs-manual/2312
Maybe someone on the group has a 2007 USA Spec Sprinter Service booklet.
That would have specific info on the recommended frequency for changing the rear differential gear lubricant.
IMHO, since it's very easy to do, and it's also easy to find the approved lubricants, it's probably wise to change
it every 60k miles or maybe 75k miles.
See what the manual has to say.
Here's some more info specific to your question:
https://sprinter-source.com/forum/sh...+Owners+Manual
Another question.....if you have a 2007 Sprinter, why are we discussing this in a the T1N specific forum section?

Roger
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Last edited by sailquik; 11-28-2018 at 04:34 AM.
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Old 01-10-2019, 05:57 PM   #36
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Default Re: Rear Differential gear oil change

I called my local stealership. They want $45 per quart of the sprinter specific gear oil. Umm...

So i found the 2005 service manual and looked at the lubrication section.

http://diysprinter.co.uk/reference/0...e%20manual.pdf

Copied from the manual:

REAR AXLE
• Synthetic Gear & Axle Lubricant SAE 75W-140

Quantity: 1.8L (4.0 pints)

Last edited by biggreen; 01-10-2019 at 06:02 PM.
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Old 01-10-2019, 07:14 PM   #37
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Default Re: Rear Differential gear oil change

Quote:
Originally Posted by biggreen View Post
I called my local stealership. They want $45 per quart of the sprinter specific gear oil. Umm...

So i found the 2005 service manual and looked at the lubrication section.

http://diysprinter.co.uk/reference/0...e%20manual.pdf

Copied from the manual:

REAR AXLE
• Synthetic Gear & Axle Lubricant SAE 75W-140

Quantity: 1.8L (4.0 pints)
Yeah, I bought 75W-140 Synthetic, non-MB Gear lube, drained the muddy mess out of my 2002 and it's been fine the past 5 years.

*NOTE my Sprinter has a screwed in fill plug, which was a beast to get out... To avoid not being able to refill it, check to see that you can get the fill plug out, BEFORE you drain it!
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Old 01-21-2019, 10:43 PM   #38
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Default Re: Rear Differential gear oil change

Quote:
Originally Posted by LuckyDawgz Jim View Post
Yeah, I bought 75W-140 Synthetic, non-MB Gear lube, drained the muddy mess out of my 2002 and it's been fine the past 5 years.

*NOTE my Sprinter has a screwed in fill plug, which was a beast to get out... To avoid not being able to refill it, check to see that you can get the fill plug out, BEFORE you drain it!
Good enough for me! Amsoil Severe Gear 75W140 it is then!
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Old 01-21-2019, 11:26 PM   #39
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Default Re: Rear Differential gear oil change

Quote:
Originally Posted by biggreen View Post
...

Copied from the manual:

REAR AXLE
• Synthetic Gear & Axle Lubricant SAE 75W-140

Quantity: 1.8L (4.0 pints)
Yep.

2002ManualOilSpec.jpg

AND...
the differential design has not changed from NAS aka NAFTA 2001 - 2003 to 2004 - 2006. As a practical matter, it follows that synthetic SAE 75w-140 would apply to the newer T1N's as well (regardless of 2004 - 2006 Operator Manual specification).

Some data is here.

Differential Rear End and other Fluid History
https://sprinter-source.com/forum/sh...ad.php?t=71681

Also note that DOT 4 brake fluid was specified back then.

vic
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Old 01-21-2019, 11:32 PM   #40
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Default Re: Rear Differential gear oil change

Quote:
Originally Posted by Aqua Puttana View Post
Yep.


AND...
the differential design has not changed from NAS aka NAFTA 2001 - 2003 to 2004 - 2006. As a practical matter, it follows that synthetic SAE 75w-140 would apply to the newer T1N's as well (regardless of 2004 - 2006 Operator Manual specification).

Some data is here.


Also note that DOT 4 brake fluid was specified back then.

vic
If it was changed to Sae 90 later, it would purely be for fuel economy. Personally I'd rather have it last me and not have to do any work vs. .01% better fuel economy.
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