On Feb 1, 2014, at 3:56 PM, Stuart MacMillan <stuartmacm@GMAIL.COM> wrote:

Assuming it's a
manual, park it (cold, no warm up) on a level surface and remove the fill
plug on the side (NOT the drain plug) and either oil will run out or not.

In case you don't know where that is:
http://volksweb.relitech.com/tech/clutch/transfill.jpg
This is the passenger side of the transaxle, and the fill plug
is just above a rib so a little difficult to see from below, laying
on the ground, so maybe jack that side of the van up. Keep
in mind that if you stick your finger in this hole to see just
how far down the lube level is, that jacking up that side
of the van will lower the leverl. If the level is just below
or right at the hole, leave it alone. If it's more than about
1" add a little, maybe 1/4 quart. The Bentley says it
should be about 1/2" below the fill hole, but I like filling
it up to the hole, not running out onto the side of the
case.
Note that the shift linkage is missing in the above linked
photo, so getting to that fill bolt is not a real clear access,
but can be done. I tend to use a hex socket on a short
ratchet extension. I also added a BMW bolt to put in that
hole, so now I can use a regular open end wrench or
regular socket wrench to remove the bolt.

bob