USING NFC (Near Field Communications), a very short-range radio technology, a smartphone can become a car key. NFC is already built into many modern smartphones – it is the tech that enables contactless payment systems. The other requirement of the phone or its SIM is the ability to securely store encrypted data. Mercedes engineer Santiago Pena Brossa demonstrated the system by opening an app and touching his HTC phone gently against the doorhandle of a new E-Class.
Digital key will be an option on the W213 and will spread to other Mercedes models. s), ome tphones he r n dle 3