How to Locate a BMW Radio Code


1. Insert your car key into the ignition, leaving it in the 'off' position.
2. Depress and hold the 'M' button on your radio.
3. Turn the car key to the 'on' position and turn on the radio with the 'M' button remaining depressed.
4. Write down the serial number that appears on your radio's display.
5. Send your BMW serial number to a third party that can retrieve unlock codes such as the BMW Express Code retrieval service (see Resources).