Aiuto con Volvo 460 TD Frio Falls

Hello, I have a problem with my 460 TD, when I just started and it is cold that sounds with an old tractor, good, it browse it to the pile of kilometers that it carries, but when it is heated a little it is removed a lot, the problem is that when it is cold and you can not wait to start, it costs it a lot, it lacks a lot I give anything, sometimes, few, it starts or sounds a tractor, nor does this problem happen, if someone Può darmi qualsiasi idea della colpa, sarei molto grato.
Grazie
un saluto