after first year of ownership, i ran down the "B" service checklist with my mechanic and found that i had already done almost all of the items. i have a fuel filter waiting to be installed - i read somewhere that it's optional to change it but i might put it on anyway. if you break down your charges it's not bad, but as Mike says, you cut down on costs by doing the DIY stuff...
1993 300e-2.8 - gone now <sigh>
"Do not adjust your mind, it's reality that's malfunctioning"