Lost Key = Stupid Me

I have a 1984 BMW 318i. I recently lost the key (same key for locks and ignition) and the car sits unhappy in my garage. Is it possible to get a key made from the VIN? If so, do i need to go to a locksmith or a BMW dealer? Does anyone have any ideas? Thanks for your help!!! ~ Tim

call the dealer and ask for a KEY CODE for an 84 318i, if they still have that information, i think the key codes are only stored for the past 10 years, for ford its 5 years,
if they dont have a key code, youll need to replace the lock with a new one from BMW and since this is an old ass car they might not even have a new key lock for it and youll have to find one at a junk yard