I have an 1999 ML 320 with 130000km(78000mile).
This is the list of things that have been replaced in mine:
Trip computer
Transfer case
Front shocks
Front ball joints
Inner tie rods
Transmission oil coolant line
Center drive shaft bearing
3 sets of front and rear brake pads
2 sets of front and back rotors
Fuel sender
HVAC blower
Catalytic convertor
and various small stuff.
What's your list?