One problem related to transfer case has been reported for the 2008 Mercedes Benz C300. The most recently reported issues are listed below.
Transfer case reseal. I have a 2008 C300 I bought with 56k miles on it, I had to have the wheel bearings replaced immediately. When this service took place, I was informed that I need to have my transfer case resealed and the cam shaft magnets replaced. This car has such low miles on it. I do not understand how this is needed at this time. I have seen on many boards, this is a common problem. Why hasn't mb recalled this yet? it appears the 2008 model is plagued with problems as I have had to replace the steering lock as well as it failed. Again, common problem and not recall. I now have a seatbelt sensor that faulty. All of this before I have even hit 100k. My 2001 ml is well over 200k and I have never had these issues with the ml.