So, I have been using an indy mechanic for services on the wife's Jetta and my MB. I want him to change the ATF in my W209, but he does not have the MB ATF Filling Station. I have already bought all the other supplies to include oil, updated pan, etc..

Is there a workaround for the filling station?

 

I bought an Assenmacher like this:

http://www.ebay.com/itm/How-To-Fill-Transmission-Fluid-On-Mercedes-Benz-with-722-9-Transmission-/230955417429?_trksid=p2054897.l4275
It only hold 5 liters, so I had to refill it halfway through the job, but that was a very minor inconvenience. Even at this price, it was still cheaper to DIY, plus I intend to change my fluid every 40K miles, so it's really a good deal. It's a very well made tool, a nice investment.

Others have used less expensive options, like a $15 hand pump coupled with a filler adapter like this:

http://www.ebay.com/itm/like/290986091150?lpid=82
I've even heard of a few guys "making" the adapter.

 

I bought the adapter pictured in Rodney's post and bought a screw on pump that you just screw on to each quart bottle for about $6.00 at the auto parts store - looks like a hand soap dispenser with a tube on the end. That's what I'd do again. A lot of pumping, but for job you do every 40,000 miles, who cares.