DTCO SmartLink Pro can be used in conjunction with VDO apps without having to pay for already activated functions. There may be additional charges for the activation of the DTCO front interface, depending on the model. In some cases, functions in the DTCO must be activated by VDO partner workshops for a fee. From DTCO Release 2.0, which was installed by the vehicle manufacturers, a software upgrade to Release 2.1 can be performed by VDO partner workshops for a fee to be able to use additional functions. From DTCO Release 2.1, which was installed by the vehicle manufacturers ex works, an additional DTCO VDO Counter Update is required. You can order this DTCO VDO Counter Update Card in the VDO Shop. With DTCO Release 2.2, all functions are available in the app via DTCO SmartLink Pro. No additional costs are included.