Welcome to the forum. Now, what about your headlights? Fogging as in they have condensation inside them? If so, there is a service bulletin about that issue. There is a seal kit the dealer can install under warranty. Search on this forum for TSB or service bulletins. Just about anything you need to know about your car can be found on this forum.
I'm sure you know by now that these cars are Mercedes except for the body and assembled in Germany. Enjoy!!