There are some generic tools that will do the job well enough but for accurate deep level diagnostics on any Mercedes be it car, van or Mercedes HGV/Bus as well as the Mercedes special machines and construction rigs, there is nothing better than what is known as a Star Machine. A Mercedes Star Machine will give you deep level diagnostics with pinpoint accuracy and give full readout of events, current and stored faults. It will programme parts and do software updates on modules and give the user repair time estimates and how-to guides. A good Star Machine system should have the following programs; 1- Xentry for vehicles after 2009 2- DAS for vehicles after 1999/2000 to 2009 3- WIS (Workshop Information System) a Mercedes vehicles Data software 4- EPC (electronic parts catalogue) These 4 programs are the most essential in any Mercedes Star Machine, most will have Star finder and SD media and various key generators we also add Vediamo and DTS Monaco on request but un...