most codes 5 numbers i have the same BMW 740i try this code 16526 does not hurt to try it carlos puchades
53414
How to reset security code in 2001 Z3
In order to reset the radio in a 1992 BMW 525i, you will need a five digit code from the manufacturer. Once you receive the code, you can check your user manual for the correct sequence to reset the radio.
You will have to go to the dealer to get the reset code and instructions. It will be unique to your particular radio.
To reset the radio code on a 1995 BMW 525i, first, turn on the ignition and then the radio. If the radio prompts for a code, you will need to enter the correct code using the preset buttons (usually labeled 1-6). If you don’t have the code, you may need to consult your owner's manual or contact a BMW dealership, as they can provide assistance based on your vehicle's VIN. Be cautious, as repeated incorrect attempts may lock the radio for a longer period.
take your car to the BMW dealer they should know the code or you can take the radio out and see the serial number and call a BMW dealer and they can give the code over the phone it has 2 screws and it pops out
Turn ignition on then input 53325. Shortly after the last digit is pressed the radio will be enable
To reset the radio on your 1987 BMW 3225is hold down the on/off button. Once the radio blinks twice you can choose the first radio station that you want set. Follow this on the rest of the buttons and your radio will be fully reset.
Nothing to reset except radio presets and clock.
Check
The radio comes with a code. Turn on the radio and input the code. Once you have finished putting in the code, the radio will begin to play.