So I get the little note from my car that I need to perform service D. I'm assuming I have to go to the dealership right? Any idea what this entails and what MB is gonna charge me? Thanks for the help.

 

Pretty much means your car is due fora D service. All that means to you is take your car in for service. rates for the service due depend on the dealer you go to.

 

Look in your manual as how to call up the service function,it is triggered by miles and usage.Find the items to be completed and do them. If you diy most are easy checks or simple services.
ohlord
Either you can do the service or find a good indie shop to do them,the dealer will rape you......