Q: Where to get the OBDSTAR C4-08 adapter kit for Benz VGS4-500-NAG2 gearbox TCU?  It is out of stock everywhere.   OBDSTAR has modified the VGS4 TCU function and menu. You don’t need the C4-08 kit anymore.   For VGS4-0-NAG2 … Continue reading OBDSTAR Bench and Jtag Cable for Benz FBS4 VGS4 Gearbox [2026]