The optionally available TELEAID automatic emergency call system is based on the built-in telephone. Following an accident it automatically emits a distress call which alerts the emergency services and guides them to the scene. Depending on the accident type, the emergency call system is triggered either by the standard-fitted crash sensor in the S-Class that is also responsible for activating the airbags and belt tensioners, or by the rollover sensor.

The occupants can also send out the emergency call message manually with the aid of a button in the overhead control panel. Following the emergency call, TELEAID automatically establishes a voice link between the vehicle and the regional response centre. TELEAID is at present operational in Germany, Japan and the USA. It will be introduced succes-sively in other countries as well.