I have driven over 700,000 miles on on five cars, A Datsun, three Toyotas and a Honda. I have replaced two water pumps and one clutch and two front rotors. I have only driven my MB for 32,000 miles and have replaced;
foglight lens (2)
window switch
stereo
AC compressor and dryer
Climate control elements (5) (entire dash out)
OVP
Fuel pump relay
Fuel pumps
Thermostat
O2 sensor
Coolant sensor (fuel injection)
CIS-E unit (ouch)
door checks
Fan pulley, tensioner and shock and fan bracket
Rear window regulator
Flex disc (front)
radio antenna
transmission
Valve seals and guides
headlight lens (50 bucks for a piece of glass)
Timing chain and so on
This by no means fits my definition of the words dependable or durable.