Control unit required for OEM upgrade of xenon headlights with automatic leveling - VW Caddy 2K. Please contact a local VW dealer to replace the on-board control unit. Connect the vehicle to a VW diagnostic machine. The current coding must be copied to the new control unit. After replacing the vehicle's keys, they must be reactivated. 433 MHz high-frequency line. Scope of delivery: Control unit. Note: Not suitable for vehicles with 315 MHz (e.g., US market).