Mercedes Repair Questions? Ask a Mechanic for Answers ASAP
Hi - yes, you can order the latest nav DVD from your dealer. Mercedes have got a promotion on many of the common DVD's at the moment and from memory are around £100 - usually they are much more than this.
I would visit your local dealer to obtain the correct version as there are many different systems and they will make sure the correct one is ordered for your car.
Best regards, Paul