I have the following problem: My Audi 80 B4 automatic does not start any more it has AC and it shows me the symbol for the oil pressure but there is enough oil in it I have changed the boxes at the front one day then it has also started and then after two hours I wanted to start it again and there is nothing left! you can hear the petrol pump and it is also enough gasoline in the battery is also full and no matter how often I ignite it he jerks and jerks but he doesn’t want to start the pro blem isn’t happening from one to the other glance during the ride or so it’s 15W-40 inside someone knows what I can do?