Huhu dear community, I have the Volvo from my brother-in-law in Spe standing in the garage and it starts really bad, when it is cold, the battery almost collapses, when you then bring it to run with bridges, then it runs perfectly, it is warm, you turn it off, it jumps again wonderfully without quirks. I already changed the glow plugs, one was without function, 2 looked like shit, so, there was already a bit of something missing, apparently burned away. Fuel system I also ventilated at the distribution pump. What else could be? Cold running controller? Temperature sensor? Can someone be of any help to me, I would be very grateful.