Mercedes Splinter OM 611

Good I am something new in the Splinter but they have hired me in a transport company where they have 30 splinter and they have the diagnosis Star I would like to know if they could help me how to use it I bone perfect and if you have common failures of the Splinter I would like to know a page or something that can help me I would be appreciated and we are at the order I am a specialist in Cummins iscs