Complete retrofit kit to add automatic leveling sensors to the HID/Xenon headlights of the VW Passat 3B Selectable options: front-wheel drive 4motion Scope of delivery: HID headlight adapter Automatic leveling sensors Mounting kit for Sensors Wiring Harness Note: After installation is complete, the sensors must be recoded via diagnostics Some countries require wiper/washer systems for xenon headlights. We can supply the wiring harness for that