Yeah I think it is more of that good old service manager bullcrap (not that all service managers are like that...I just seem to run into a lot that are). I also asked him about transmission fluid change and whether they drain the torque converter. First he told me that it couldn't be done. Then when I told him there was a drain plug he said they don't do it "to save customers money because you don't really need to change the fluid...Mercedes transmission fluid is good for the life of the transmission. We only drop the pan to change the filter and inspect for condition". I should have asked him why they bother changing the fluid at all then; just throw the drained fluid back in the transmission after you've changed the filter, but he would probably have had some more BS to say about that. Jeez.They don't have access to the "Chrysler manuals," unless they downloaded them some non-MB computer - from somewhere outside the MB field of authorization - and charged you for the time it took to download & read them.