ive have a 1993 318 is coupe which was running perfectly till yesterday i went to the local shop and when i came back to the car it wouldnt start all the dash board lights work the cd works so does all the other things but it wont even fire? the bmw key fob is working ok cus it locks and unlocks the car but when you turn the key theres nothing ive been told it could be a number of things but which order do you start from ie relays,starter,fuses thanks