Hi folks. I have a 97 328i convertible that was running fantastic until I forgot the radio on and drained the battery. I tried to jump start the car with cables with no luck. I decided to replace the battery but I keep getting the same results:
all lights/bells go off when I put the key in the ignition and turn it but the engine won't even crank.
I only have a flat bmw key (not sure if it has a chip inside but it was working before the old battery died).
Any help would be greatly appreciated.