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jo996

changing dif fluid on a Porsche 996 Carrera 4 Tiptronic

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I've just tried to change the dif fluid on my 996. Changing the oil on the front differential was no problem. The rear dif, however, was a totally different matter. I had already asked my Porsche dealer whether It was something I could do myself and I was told it shouldn't be a problem.

 

Finding the filling plug was no problem, but finding the draining plug was. I simply couldn't find.it. So, is there a plug to drain the dif oil and where is it?

 

A few minutes ago I also found a YouTube film in which someone is changing the dif oil on his 996. His differential looks different, might be a later car. Mine is a late1998.

 

Any help will be greatly appreciated.

 

Jo996

 

the Netherlands

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I've just tried to change the dif fluid on my 996. Changing the oil on the front differential was no problem. The rear dif, however, was a totally different matter. I had already asked my Porsche dealer whether It was something I could do myself and I was told it shouldn't be a problem.

 

Finding the filling plug was no problem, but finding the draining plug was. I simply couldn't find.it. So, is there a plug to drain the dif oil and where is it?

 

A few minutes ago I also found a YouTube film in which someone is changing the dif oil on his 996. His differential looks different, might be a later car. Mine is a late1998.

 

Any help will be greatly appreciated.

 

Jo996

 

the Netherlands

 

With the Tip trans you have, there is no drain plug, requiring that you syphon out the old oil through the fill plug opening.

 

996 rear diff oil change.pdf

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I had a similar problem with Mercedes, it only had only one plug to work with - you can use a fluid extractor to pump out and add your fluid back into the differential. I used a Astro Pneumatic extractor and it great for all types of fluid removal or fluid replenishment projects. 

 

 

 

 

 

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I just did mine, was not a problem with the drivers rear wheel removed.  One thing that I did notice is that the attached pdf states to use transmission oil.  All I have read says to use gear oil.  I used

Royal Purple Max Gear 75w90

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