How do I find the NTG and map versions on an R231

[V6GBJ]

I have just bought an R231 SL400 facelift version regd. in 2016. The seller did not know if the dealership had kept the maps updated during servicing but I know from this forum that a lot of dealerships do not bother. Can anyone tell me how to get into the engineering menu in NTG 5.? (I assume). Thanks for your help.

 

[Srdl]

It should be on the Comand Navigation menu - from memory something like Map Content / Map Version

 

[V6GBJ]

It should be on the Comand Navigation menu - from memory something like Map Content / Map Version

Thanks Steve, I'll take a look.
Gareth