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Tiptronic differential service

crwarren11
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crwarren11 Member

crwarren11

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I've been searching and haven't found any good DIY write-ups on changing the differential oil on a tiptronic boxster (986). Found several for the manual transmission. Anyone have this procedure or any tips for the tiptronic?

I have the Porsche repair manual and it's pretty useless on this one!

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JFP in PA Member

JFP in PA

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On a Boxster the transmission and differential share the same case and oil. So changing the transmission oil changes the differential oil.

Loren, that is correct for manual gear boxes, but not for a Tip. On a Tip, the differential is separate and holds a little less than a quart of 75W-90 Hypoid gear oil. There is a "how to" for doing it in the Bentley manual for the Boxster (and I should comment that it is messy as you need to undo the side cover, remove the drive axel and flange, because there is no drain plug on the unit).

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