Retrofit kit for xenon headlights in combination with automatic headlight leveling control (for HID headlights manufactured before 08/2002). Selectable options: Front-wheel drive, 4Motion all-wheel drive. Scope of delivery: Wiring harness, mounting plate, sensors, screws. Notes: After installation, the sensors must be recoded via diagnostics. In addition to xenon headlights, you also need headlight washers. This option is often included in the factory winter package. In most countries, the leveling system is legally required in combination with xenon headlights.