errr I'm afraid I did....
I shall just consider it a rather expensive flush through !
Ironically enough it's what MB do when they flush it (although they do it 3 times in total!)
I'm content enough to change ½ the ATF every 20,000 miles or so.
When I enquired about the 236.14 oil from Fuchs they suggested their 236.12 oil from OpieOils.
I had a brief search for 236.14 from Mobil (Exxon) and Shell and had less joy than with Fuchs.
On eBay in Germany there was some Fuchs 236.14 oil, but I thought it would more aggro than it was worth.