Complete kit for retrofitting an original Park Pilot system at the front and rear of the vehicle including OPS optical parking system for VW Passat 3C OPS function only for vehicles equipped with units main RCD 310, RCD 510, RNS 510 Better distance control thanks to frequent acoustic sound as well as optical display on the display of the main unit Scope of delivery: Wiring harness 1x Control unit 8x Sensors Buzzer Note: Regarding OPS function, VW RNS 510 head unit must have software index of at least 1000 Regarding OPS function, VW RCD 510 head unit must have part number 3C8 035 195 After installation you need to code the system. Please contact a VW dealer or workshop with diagnostic software