Hello all. I came back from holiday and my golf sounded like it was running on 3 cylinders, had to drive 50 miles to get home, I suspected a coil pack so replaced the spark plugs and No1 coil pack, then the car would not start at all, checked the coil pack resistances and they are all the about the same, (pins 1 to 3 = 25K, pins 1 to 4 = 384R, pins 2 to GND = 0.2R, pins 3 to 4 = 25K, al others pin combinations = open circuit), the oil pressure warning came on when I was trying to start it so I have replaced the oil and filter, still won't start. Coil pack 036 905 100A genuine VW/Audi.
The car will turn over and sounds as if it is going to start but does not, the battery power is now low and when I turn it over the immobiliser beeps, can this not starting problem be anything to do with the immobiliser or does it need to be put on a vag-com to find any faults registered.
I have a cheap vag-com which use to work but won't work now, sods law.
Any ideas would be greatly appreciated, I have done mechanics and electronics for many years so I am competent enough to check most car things.
All the best