My 16 year olds 2002 New Beetle would turn over but within seconds the engine would turn off. The security key light was lit in the panel. I took the car to the VW dealership and got a new key. I paid $215.00, and the tech drove the car from the service gargage to customer pick up. I drove the car home and less than an hour later went to start it and the same thing happened. The engine turned over and immediately died. What to do now??