[T3] Back to my auto trans diff oil change.

[Phil Hof]

I would be concerned that the seal between the diff and tranny has failed, diluting your oil.  I’ve read about a failure something like this on the Samba, and it can be repaired but do not delay as tranny failure can follow if you wait.

Ray Greenwood wrote:

Heed this warning:.......if you have a type 003 automatic transmission in either a type 3 or 4......you MUST, MUST,MUSt,MUST, MUST, MUST, MUST....get it?...MUST....... 
Change the seal, gaskets and o-rings between the differential and automatic section...every 7 years or 70,000 miles.....or else suffer the fate you have most probably suffered. 

It is very common that the seal...which is not perfect material for either gear oil or AT fluid...but is a compromise......eventually fails. When this happens, AT fluid gets into the final drive SAE 90 oil. It can cause failure. This is very common. I wiped out two transmissions this way before I learned. 
-Phil

> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Mon, 7 Mar 2016 17:18:17 -0800
> From: "William J" <catnine09 at dslextreme.com>
> To: <type3 at vwtype3.org>
> Subject: [T3] Back to my auto trans diff oil change.
> Message-ID: <EBD0BB1838AC4579B610BB9480FE45AF at acere355056e8b>
> Content-Type: text/plain; charset="iso-8859-1"
> 
> I was able to get the filler and drain plugs out and drained the diff. It was med brown in color and abou 6 1/2 ounces over full. I never added any or lost any trans fuild other than a minor leak. 
> 
> Using the quart bottle and a 3/8" hose was not real easy to fill it but I had the car level and got the quart in and it was just a slow drip from the filler hole. 
> 
> I finally got the trans filter and gasket late today so I'm going to drain the trans and do that tuesday . 
> 
> I've read in the bentley a refill requires 6 pint's 5 oz and the haynes 5 pints 4 oz. Everytime I have filled it in the past it's always over filled . Should I just put in the 5 pints when the car is on the ground and then run it until worm or drive it until hot ?
> What do others do?
> 
> William
> ************************************************

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