NTG 7 - w223, w206, w254, w192, w294, w295, w296 (prefacelift), w177, w118, w247, w167, w243 (facelift)
These are the India map versions this Mercedes head unit accepts. The activation code — the map PIN — is tied to your VIN, this region and one version: it does not work on another car or another version. These are map updates. A region change requires a separate process with a diagnostic device, and it is not a service we currently offer.