1、Fitment: The seat occupancy sensor is a replacement for Benz C Class W203 2000‑2004, please check the model and year of your car before buying. 2、Function: Resolve passenger seat sensor failures, cover defective passenger occupancy pad sensors, and fix restraint system warning light issues. 3、Feature: When the device is properly connected to the car, a signal of the passenger in the passenger seat is sent even in the passenger's absence. 4、Safe: After installing this product, in the event of a traffic accident, the passenger seat restraint system will be deployed directly, regardless of whether there are passengers on the seat, greatly improving driving safety. 5、Easy to Install: Stringently manufactured to meet the original standard, good replacement for the old or broken one, improving efficiency.