I have a 2006 tdi bug that will not start at first we thought it was the fuel filter so we change that out then we thought it might be the battery because it wasn’t staying charged so I change that out then I changed out the 109 relay that didn’t help what the car is doing it will crank and almost start or start for one second then shut off someone said I may have jumped a notch on the timing belt so I took the cover off took a look at that and there doesn’t seem to be any damage to the timing belt I was told I might try relay 409 but I also thought there may be a fuel inertia switch that had been tripped but I’m not finding a fuel and nurses switch someone said the diesels do not have them any other ideas I think you in advance