if you give me the chassis number then ill give you all the info, model,engine size,makers year etc.The access code or EKA is unique to each vehicle.
When you press the key fob button does the led flash,if not try new batteries then sincronise the key.
Im in the uk also.
If you look at any plastic bits on the car,there will be a date stamp on the back.This will will give you a rough estimate of the cars age,usually within about 12 months