Control unit required for OEM retrofit of xenon headlights including automatic leveling - VW Caddy 2K Please contact a local VW dealer to replace the on-board control unit Connect the vehicle to the VW diagnostic device - Current codings must be copied to the new control unit - After replacement, the vehicle keys must be reactivated Highline 433 MHz Scope of delivery: Control unit Note: Not suitable for vehicles with 315 MHz (e.g. US market)