The Mercedes-Benz ESF 2009 Experimental Safety Vehicle is a safety research vehicle based on the S400 Hybrid, unveiled in 2009.^[1]

Innovations

• Spotlight function: Production version called Night View Assist Plus with Spotlight Function, introduced on the Mercedes-Benz CL-Class (C216) in 2011.
• Beltbag: Production version called Beltbag, introduced on the Mercedes-Benz S-Class (W222) in 2013.
• Interactive Vehicle Communication: Production version called Car-to-X Communication with Drive Kit Plus, introduced on the Mercedes-Benz S-Class (W222) in 2013.
• Full-LED headlamps with Partial main beam: Production version called Adaptive Highbeam Assist PLUS, introduced on the Mercedes-Benz S-Class (W222) in 2013.
• PRE-SAFE Pulse: Production versions called PRE-SAFE Impulse, introduced on the Mercedes-Benz S-Class (W222) in 2013 and PRE-SAFE Impulse Side,^[2] introduced on the Mercedes-Benz E-Class (W213) in 2016.
• Braking Bag
• Child Protect System
• Hybrid Battery Shield
• Interseat Protection (Center airbag)
• PRE-SAFE Structure
• PRE-SAFE 360°
• Rear seat camera
• Side Reflect
• Size Adaptive Airbags

The vehicle was unveiled at the Enhanced Safety of Vehicles (ESV) Conference in Stuttgart.^[3]