Transmission Fluid - 98 C280

[510Motorsports]

I have question in regards to transmission fluids on 98 and up W202s. I was told by a Mercedes dealership that these cars have transmission are "non-servicable" hence the reason why there is no tranny fluid dipstick. But a Mercedes independent mechanic (Holland Car Care in San Mateo) insists that I change the tranny fluid and filter saying its dirty. My car currently has 125K miles. A new transmission was put in at 50K miles because of some faults covered under warranty. What do you all think?

[Renn 208]

http://www.club202.com/forums/showthread.php?s=&threadid=6073&highlight=transmission+fluid

the whole thread would help to answer your question, but benzaddict's 1st response (scroll down) is particularly helpful