This is the Mid City Engineering SKSNG204D3 Plug and Play Remote Starter.

You can also pair this remote start kit with a number of Compustar brand key fob kits, or use the default OEM key fob (3x Lock Start) feature, and not require any additional key fobs on your key chain. 

REMOTE START SYSTEM FOR MERCEDES BENZ

• Plug-and-play remote start system for Mercedes-Benz
Plug-and-play remote start system for Mercedes-Benz
• Works with factory key fob out of the box ('Panic' button or 'lock-unlock-lock')
• Interfaces with Compustar Drone and Directed Smart Start smartphone control interfaces and Compustar RF remotes (for extended range). Note: not compatible with AM remotes.
• Automatically turns on heated seats and rear-defroster based on programmable outside temperature
• Automatically turns on cooling seats based on programmable outside temperature (if applicable-cooling seats feature must be programmed through Compustar firmware programmer and computer)
• Seamless solution that does not disrupt integrity of the vehicle, keeping all warranties intact
• User-friendly programmability from steering wheel controls. Adjust options like run time, number of starts, heated seat temp. threshold, light flashes, and number of starts.
• Industry leading automotive hardware and firmware