Purchased a new 07 C280 4-matic in May 2007. Decided to pay more for a vehicle because of their known longevity. Have always maintained vehicle to Recommended Standards. At 63000 miles (which is out of warranty) in 2010, I took the vehicle in because I noticed a noise from the Passenger Rear Wheel when making turns. The Service Manager asured me it was something simple, i.e. a rock in the brakes. After 3 hours waiting, I was told that my transfer case was coming apart internally and would cost over $4000.00 to repair. I LOST MY MIND!!! Went directly to the General Manager. He assured me that he would contact Corporate and take care of this immediately. I assumed life was grand. 4 days later, still no return call. Finally got in touch with the elusive GM, he stated that Mercedes would pay 25%, leaving me with a balance of over $3000.00. I asked where his assurances went that this would be taken care of? He had nothing to say. Filed a complaint with Mercedes Customer Service department and went to work researching the situation. Found out on 01.28.2009, there was a Service Memo issued to Dealers about the Transfer Case problem and that there was a service that could be performed. If the transfer case service did not work, then it needed replaced. OF COURSE in 2009, I was still in warranty. the dealership denied knowing about the Service Memo and is refusing to take care if this. I even had to fax the Service Memo to them for review!!! BEWARE!!! Mercedes is no longer the vehicle it used to be!!!