Are there any known engine problems with the CL550 model, MY 2007 through 2010? on 2010 Mercedes-Benz CL550

please, also what is the engine configuration on the engine in the CL550, prior to 2011.

how many miles on the car?
3,300 miles
.. my question was more in general if there are any common or know issues with this motor, regardless of miles on the odometer