I just today had my 3rd 30k service.
It included new plugs; air filter; fuel mixture check and adjust; fuel filter and seal; PS fluid and filter; Trans fluid, pan gasket and filter; Diff gear oil change; oil change with filter and drain plug seal; Drive train inspection; Throttle linkage, hood, door, and sunroof cable lube; parking brake adjust; tire rotation; electrical system check (requested because battery is 6 years old, non standard Die Hard); exhaust sytem check (getting noisy); O2 sensor check; radiator/cooling system check for signs of cracks or leaks; head/timing chain cover/valve cover gasket inspection; Engine compartment cleaning; and road test.
Including CA tax and hazardous waste charge, the bill was $408.11 - very reasonable IMHO.
2003 Firemist Red/grey leather SL 500
2015 Palladium Silver/black mbtex GLK 350
1987 Smoke Silver/burgundy mbtex 300E Sportline (SOLD)
Click to see 87 300E