Hello, I have the following problem with my Saab 9.5 3.0 TiD Built 2003, 150000 km, 5-speed manual transmission: This has been jerking since last week in cold condition at approx. 2000-2500 rpm. The gear does not matter. Whether it has something to do with the acceleration I could not really notice. I describe this now as exactly as possible (as I personally perceive the changes): 1. When I turn the ignition key it feels like the car is half a second län 2. As soon as I started it starts to jerk at about 2300 rpm as described above. It feels like the ESP is activated. 3. It does this in all 5 gears, but always only at approx. 2300 rpm in the corresponding gear. 4. So far, I have noticed this especially with climbs, since I have to drive slightly uphill on the way to work in the morning, but also on a straight track. 5. As soon as the engine gets warmer, I have to start starting. 6. Overall I have the problem for 6 days. I this time the problem occurred on 4 days, i.e. irregular. I could not find an accumulation so far. Unfortunately, the Saab dealer himself could not find anything at several error readings, but suspects that it is about units of the injection pump (price incl. working time 1400 Euro !!!). Since I understand relatively little of cars, but do not want to pay 1400 Euro for assumptions u m then 2 weeks later to have the same problem again, I ask you for help or for tips what I can do.