just got my 1997 c280 back from the dealer that i brought in for a few things including a "major" tune up which was to be 1200.00 bux

and included changing the tranny fluid. But when i got the car back, the " consultant" told me the tech didnt do the transfluid change because its a sealed unit and with my milage (109xxx), i may be "opening up a can of worms". he said that when the milage is that high, the dirty fluid fills in the gaps in the gears and when u change the fluid, the gaps will cause the tranny to deterioate quickly and damage the tranny. ( i swear this is exactly what he said!!). is this guy serious??