Glad to hear the car is running smooth again.
As stated by C32AMG, there is a common problem with glycol contamination on those vehicles. I would keep a close eye on the trans. symptoms. The bulletin they performed worked but it generally applies to vehicle with 6k miles or less. At 26K you trans. should be adapted properly already.
I would look inside your door sill and check the production date. If it is 09/2003 or earlier, I would ask for the glycol test to be done. Could save you lots of $$$.