DRIVE PILOT builds on the surround sensors of the Driving Assistance Package and comprises additional sensors that Mercedes-Benz considers indispensable for safe conditionally automated driving. These include LiDAR, as well as a camera in the rear window and microphones, especially for detecting blue lights and other signals from emergency vehicles. There is also a wetness sensor in the wheel well. The S-Class with optional DRIVE PILOT also has redundant steering and braking systems and a redundant on-board electrical system. This ensures that it remains manoeuvrable even if one of these systems fails and enables safe handover to the driver.

The top priority for Mercedes-Benz when introducing such a system is safety, which includes high demands on operational reliability. The exact location of the S-Class is determined using a highly accurate positioning system. This is much more powerful than conventional GPS. In addition, data obtained from satellite navigation are matched with sensor data and data from an HD map. The type of data collected by LiDAR, camera, radar and ultrasonic sensors can include information on road geometry, route characteristics, landmarks or traffic signs.