Date registered: Dec 2008
Vehicle: w204 (C350ELE)
Location: Miami, Fl and Mar del Plata, Argentina
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
Is it indeed a C180K, and not a diesel? Does it look only 70k Km? Those are machines that go like the Eveready Bunny, they never stop. But if it was stopped a long time, you may have to go further than usual to getting it to regularly ride smooth and reliably. And if the speedo was brought down to 70k Km, or let the motor go unattended you may face an engine hollering for rebuilding.
The fact that you get a "low oil light" and it smokes when you pull out the oil cap, makes me think that the oil might be lost by evaporation from overheating to boiling. If this is the case, you might never find a puddle because when you stop it has evaporated.
Your first course of action should be to "sacrifice" some synthetic oil (spec below), to change oil and filter, and replace the coolant in the system with "glycol base" antifreeze (spec also noted below), in a 50% solution with distilled water.
Motor oil spec: Mobil 1 SAE 0W30 or 0W40 -nothing thicker. This oil will have a higher boiling point, so it should work best.
Antifreeze coolant: Mercedes Benz, or Zerex G05. Check if it looks "tea with milk" color, if so there is oil in the system and needs flushing besides fluid replacement.
The oil in the differential might have never been changed. Replace it that it may have condensed some water vapor (type and viscosity on label or User's Manual. If no info, use 75W90). The same goes for the transmission oil, use Mercedes Benz transmission fluid or alternate recommended by local dealer.
If your engine has 70k Km, it's about to finish the break in period. Time to try how loose it is...
A car would show appreciation for preventive maintenance by never leaving his owner stranded.
Defensive Driving is never having to say you're sorry: a true love story between man and machine.