Wiring harness for retrofitting the blind spot assistant Code 234 (Side Assist) for Mercedes Benz Suitable for the following vehicles: Mercedes Benz B-Class W247 Mercedes Benz GLA-Class H247 Mercedes Benz GLB-Class X247 Intelligent technology for monitoring the blind spot and traffic behind the vehicle Warning of approaching or floating vehicles in the detection zone Monitoring of the area behind or next to the vehicle using radar sensors on the rear bumper at speeds above 15 km/h The system measures the distance and speed difference to other vehicles Indicators in both exterior mirrors warn of critical situations When stationary, the assistant detects bicycles or vehicles in the danger zone and issues visual and audible warnings (only 3 minutes after switching off the engine) Selectable option: Up to model update Mercedes Benz B-Class W247 up to Code 803 Mercedes Benz GLA-Class H247 up to Code 803 Mercedes Benz GLB-Class X247 up to code 803 From model update Mercedes Benz B-Class W247 from code 803 + 053 Mercedes Benz GLA-Class H247 from code 804 Mercedes Benz GLB-Class X247 from code 804 Scope of delivery: Wiring harness Note: After installation, the retrofitting must be entered in VeDoc and the commissioning/SCN coding must be carried out (we are also happy to offer you remote commissioning. A workshop visit is no longer necessary.) Check the compatibility of the door control units and replace them with a higher variant if necessary