I have a 53-reg Audi TT 3.2 DSG. Last night when I arrived back at home from work and parked up, my TT would not lock with the central locking on my usual key. Thinking it was maybe the battery in the key, I got my spare key and centrally locked the car with that. On coming out to drive to work this morning, I centrally unlocked the car with my spare key only to find that it would not start despite several attempts. Each time it would turn over once and then immediately shut down. After central locking the car again and getting my main key, the main key centrally unlocked the car and started the engine. Whilst that may sound fine, I am now concerned that I may end up stuck at work with either a car that won't open, won't lock or won't start. Do you know what might have caused this? The only other bit of pertinent information I can think of is that, in getting into the car to drive home last night, I think I might have pressed the locking button on my key as I was starting the car, as I seem to recall the hazard light button blinking twice. Did that inadvertently trigger some security mechanism or am I looking at a trip to the garage and nice hefty bill (as seems to come with the territory on TTs, it would seem)?