On-Board Control Unit - Midline - In some vehicles, a replacement of the on-board control unit is necessary if you have retrofitted cruise control or fog lights Please contact a local VW dealer to replace the on-board control unit Connect the vehicle to the VW diagnostic tool - Current codings must be copied to the new control unit - After replacing the keys, the vehicle must be reactivated Scope of delivery: On-Board Control Unit Note: Not suitable for the USA