Find a successor product with improved features and easier installation under the following link: Coding key for activating the trunk comfort functions for Mercedes Benz Comfort trunk module for easier trunk closing for Mercedes-Benz C-Class W205 For vehicles with factory-installed electric trunk Control with standard remote control buttons 2 x "Close button" (when leaving the vehicle) ... or 2 x "Open button" (when approaching the vehicle) All standard functions of the remote control are fully retained Scope of delivery: Trunk module Cable set Note: Only suitable for vehicles with factory-installed electric trunk code 890