The Vodafone Internet in the car is a separate thing, it enables you to create a hot spot for passengers to use and costs a bomb and of little use to the driver.
The W213 has a built in communication module (Hermes) which provides internet connection for internal system use such as Mercedes Me, traffic updates, car to car comms, petrol prices etc. It is worth getting the dealer to check the software version in your car is the latest, mine is ver 20.6 and the current is ver 31.5, I guess the dealers don't both checking this. Apparently it is a simple job of connecting to the computer and press UPDATE it takes 3 minutes.
The W213 has a built in communication module (Hermes) which provides internet connection for internal system use such as Mercedes Me, traffic updates, car to car comms, petrol prices etc. It is worth getting the dealer to check the software version in your car is the latest, mine is ver 20.6 and the current is ver 31.5, I guess the dealers don't both checking this. Apparently it is a simple job of connecting to the computer and press UPDATE it takes 3 minutes.