Good day together, I have a concern again and need your advice: I drive a R class year 2008 and so far I have always navigated via mobile phone and hardly used the function of navigation of the R-Class so really because it was just so far always outdated on the stand of 2009. Last we were in the Czech Republic and the mobile phone battery was empty and also no charging cable in the vehicle available now we stood there in the middle of a country so language we almost not mastered long text short meaning we were able to navigate with the signs back to Germany, but a replacement navigation system in the R class would have been an advantage. So I already got a little knowledge and looked for newer DVDs but the latest DVD for navigation I found for the R class or generally from Mercedes was from 2016 and 99 € more expensive now my question how are you navigating in the R-Class? Did you vie Light new DVDs? Thanks for your help