hi. does it give the message of how far over due it is?
only a friend had this the other day using his modis. the values showed to be reset but the message was still active. think the owner had left it to long before servicing. in the end he used vag com to do it. poss channel numbers were 54/55/56 which needed to be reset. car was 57/58 plate a4 petrol model. hope this helps