Bad mercedes service advisor (grey hair, small claims court...)
Mass air flow sensor ($500)
ERG valve ($500)
Crankshaft position sensor ($400)
Brakes, pads, rotors, brakes, pads, rotors... goes on for ever (about $250 per axle if you do it yourself)
Power steering pump, new one from factory was actually a rebuilt unit ($600)
Harmonic balancer replace ($600)
Sound insulation in doors falls off and damages windows ($250)
Fuel filter and fuels lines - $900 (what the heck...)
Valve cover gasket leak (not fixed yet)
Transmission pan gasket leak (not fixed yet)
Tie rod end bushing ($450)
BAS, ESP, ABS malfunction ($150 to replace a relay in the fusebox)
The car was great when in warranty. It is solid and my family felt safe. However service costs have been outrageous by Mercedes. Truth is, I feel completely ripped off by the dealership and Mercedes. This will be my one and only Mercedes. Shame on you Mercedes Benz...!
Those replacement part prices are ridiculous. The Throttle position sensor on my Tacoma was $40. The ERG valve was $60. There isn't that much difference in these parts from one manufacturer to another. Why Mercedes charges 10 times the amount for theirs is a mystery.