The BCM is required for the example OEM retrofit of fog lights / xenon headlights including automatic retrofit for VW Caddy SA Please contact a local VW dealer for the replacement of the on-board control unit Connect the vehicle to the VW diagnostic device - Current codings must be copied to the new control unit - After replacing the keys, the vehicle must be reactivated Highline 433 MHz Scope of delivery: 1x BCM Note: Not suitable for vehicles with 315 MHz (e.g. US market)