A Mercedes Sprinter 904 2006 2.2d OM611 is having trouble starting or won't start when cold. The driver called and said he couldn't start the Sprinter that morning. He had to call a mechanic because he was 400 km from the garage. The mechanic arrived and sprayed the jump-starter, and the car started after warming up and kept starting all day. However, that was only the beginning of the problems. For example, the car would jerk and cut out when accelerating, but this was a rare occurrence. After a month, the problem became more and more pronounced, and when it became impossible to drive, I decided to investigate.