i had the exact same problem! i dreaded each morning b/c it was a mystery if my car was going to start. and then one day it just would not start and i was stranded at 10pm 100km from home. dealer checked everything electrical, fuel pump, reprogrammed key. car was in the shop for 2w. everytime they tried it started. they would call me and say everything checks out and then when i would go down to pick it up it wouldn't start. in the end the just cleaned all electrical connections and it hasn't occured since(1 year now).
karl
