thomash85715

If I want to make changes in car software like C instead of F ambient temp and netherlands option for fob lock chirp and deep dive analysis of ESP/BAS error light, is a SDS or equivalent the only option? These tools like Autel and iCarSoft seem more powerful then a dongle talking to torque pro but will they allow me to make alterations? And what is HHT and XENTRY? Are those just later versions of star system? My car is 01 SLK320. It is a USA car with a OBD2 plug under dash and maybe the big round 38 pin one under hood. Also, there seem to be knock-off devices that claim to operate like SDS called C3 and C4 but I who has used them and can provide testimonial or review? Thank you.