Spark Plugs (there are no spark plug wires/rotor/cap on this car)
air filter
oil/oil filter
pollen filter
fuel filter
brake fluid
coolant
rear differential fluid
serpentine belt (if needed upon inspection)

There is a debate over whether to change the transmission fluid. Personally, I have it done very 60K including filter and using original MB transmission fluid.

You should be able to do most of it yourself.

Good luck.

__________________
1997 E320