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  #1  
Old 03-03-2003, 09:17 PM
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W140 Differential oil change - Help Please

Hey guys,

I am preparing to change the diff fluid on my 95 s420 and I am confused as to how many drain plugs there are on the rear diff. It looks like there are either two drain plugs OR one fill on the drivers side and one drain on the pasenger side. Can anyone guide me as to which is correct? They both appear to be fairly low on the diff so it is not exactly clear.

Thanks guys!
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  #2  
Old 03-03-2003, 09:42 PM
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The latter is correct, one fill, one drain.

Gilly
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Old 03-04-2003, 09:40 AM
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Thanks Gilly!

This should be a snap provided I am able to lean on the breaker bar enough to loosen the plugs. Thanks for the help! As always, it is greatly appreciated.

Brian
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Old 03-04-2003, 09:51 AM
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One tip for this:
Loosen the top "fill" hole plug first (so it's almost removed), then remove the drain plug. After removing the drain plug, then completely remove the fill plug, and it'll run out very nicely. Otherwise the lube tends to want to "chug" out of the drain hole, like if you fill a milk jug with water and then just turn it completely upside down.

Gilly
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Old 03-04-2003, 09:54 AM
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Thanks for the tip Gilly

Do you happen to know if this is a LS diff or if it needs any sort of special additive?
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Old 03-04-2003, 10:51 AM
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I'm not positive, but if it requires special lube, there should be a metal tag attached to the differential warning you of this.

Gilly
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  #7  
Old 03-04-2003, 10:58 AM
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I could not find any mention of a special

additive or lube and no tag on the rear so I am going to just go with the recommended viscosity.

Thanks again Gilly
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