With the "Drive Kit Plus for the iPhone®", your iPhone® 4/4S is comprehensively integrated in the E-Class.It is integrated through the interaction of the Mercedes-Benz app called "Digital DriveStyle" with the "Drive Kit Plus for the iPhone®" interface in the vehicle, where the iPhone® is connected and charged.
The "Digital DriveStyle" app is available free of charge from the iTunes® App Store. In the app, extensive functions are seamlessly integrated in the new revolutionary user interface and shown on the vehicle display . With the iPhone® connected, the "Digital DriveStyle" app is reliably and conveniently controlled via the ergonomically designed Controller.
Some of the functions of the "Digital DriveStyle" app:
 "Digital DriveStyle" app available in the iTunes® App Stores in Germany, France, Italy, Portugal, Great Britain, Austria, Switzerland, Belgium, Luxembourg and the Netherlands. Further countries to follow.
 In conjunction with Audio 20 CD or COMAND Online.
 Only audio support.
You can find a list of Siri™ commands on http://digitaldrivestyleapp.com
 Languages: German, English, Italian, French, Spanish, Dutch, Danish, Swedish, Norwegian, Finnish, Portuguese.
Drive Kit Plus integrates your iPhone® 4/4S comprehensively in your vehicle and offers a range of versatile functions.