 At 24K needed a transfer case, at 58K needed a drive shaft.  Just got my car back from the drive shaft repair and now coolant level warning light came on and a new grinding sound is coming from underneath the car.  My warranty is over August 2017 and Mercedes will not extend the warranty.  I'm so disappointed I'm going back to Lexus.  I had 2 Japanese cars before the C300, I put 180K on each of them and between both of them I had to replace only 1 alternator.  The alternator was replaced at 170K.  Shame on Mercedes for not offering to extent the warranty and stand behind their car.  Shame on Mercedes for putting a car on the road with such inferior parts.  Never again!!!!