BMW Repair Questions? Ask a Mechanic for Answers ASAP
there are only two options
1) buy a new key and a new ignition lock from a main dealer, both will be ordered by vin and the key will have the correct microchip to communicate with the car's immobilizer to allow start. 2) buy the key, key cylinder, engine computer and immobilizer module all from the same donor car and install them all on your car.
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