Hello, I'm experiencing some trouble starting my D when it is cold - especially when it drops below zero degrees. Symptoms: When I turn the ignition key the engine starts, but stops after a second - same thing happens the second and sometimes the third turn. Then, the engine starts and runs at a very low RPM - the car shakes and jumps up and down. If I use the accelerator pedal the engine chokes. After 15-20 seconds of shaking, the engine speeds up and reach normal idle speed, but it needs to warm up 2-3 minutes before i start driving, if not - the engine chokes again. What might this be? Cold start valve? Anyone know the Bosch part number for the cold start valve? Thanks. -- Wilhelm Starberg #10816 - Norway.